Legal Metrology General Rules, 2011 Bare Act

The source publishes this enactment as a single document rather than provision by provision, so the whole text is below and there are no per-section pages for it. Nothing has been shortened.

Long title	GSR 71(E)
Type	Rules
Year	2010
Jurisdiction	Central
Ministry	Ministry of Consumer Affairs, Food and Public Distribution
Status	In force as published by the source
Text	Published as one document, as the source published it
Subjects	consumer

_L "._._ .. _.~. , _ ....• _ .•. '. __ ._._, ' •.....•. ,~" , '0. _ •••• , .'_ ••.•, ., ....... ,..:_ 318 'THE GAZETTE OF'lNDIA: EXTRAORDINARY [PARTII-SEC. 3(i)] MINISTRY OF -CONSuMER AFFAIRS, FOOD AND 5JBllC'DISTRIBUTION (DEPARTMENT,OFCONSUMERAFFAIRS) N011FICATION New~DelhVthe,7th February 2011 G.S.R. 7.1(E).- In exercise of the powers conferred by sub-section (1) read with Clauses (c),

(f), (h), (i) and.:(~)of sub-section (2) of section 52 of The LegalMetrology Act 2009,,(Lof 2010), the Central Government heret?Y.makes;thefOllowing rules, namely

CHAPTER I .PREUMlNARY

1.Short title and-commencement

(1) These rules may be called the legal Metrology (Genert!I),Rules, 2011.

(2) They shall come into force on the lit day of April, 2011.

2.Definitions In these rules, unless the context otherwise requires,-

(a) "ActN means the Legal Metrology Act, 2009 (lot 2010);

(b) "Schedule" means a Schedule appended to these rules;

(d) words and expressions used in these rules and not defined but defined in the Act shall have the meanings respectively assigned to them In the Act. CHAPTERU SPECIACATIONSOFSTANDARDSOFWEIGHTS AND MEASURES

3. Reference standards

(1) Every reference standard weight shall conform, as regards denomination, material used in construction, and design, to the speCificationslaiddown in Part I of First Schedule.

(2) The maxImum permissible error In respect of any reference standard weight, on verification or re-verification after adjustment, shall be such as is spedfied in Part I of First Schedule.

(3) Every reference standard metre bar shall conform, as regards material used in construction, and design, to the specifications laid down in Part II of First Schedule. '

(4) The maximum permissible error in respect of any reference standard metre bar, on verification or re-verlfication, shall be such as Is specified in Part IIof First Schedule.

4. Secondary standards -

(1) Every secondary standard weight shall conform, as regards denomination, material used In construction, and design, to the specificationslaiddown In Part Iof Second Schedule.

(2) The maximum permissible error in respect of any secondary standard weight, on verification or re-verlflcatlon after adjustment, shall be such as Is specified In Part Iof Second Schedule•

(3) Every secondary standard metre bar shall conform, as regards material used in construction, and deSign, to the specifications laid dawn in Part II of Second Schedule.

(4) The maximum permissible error in respect of any secondary standard metre bar, on verification or re-verlficatlon, shall be such as Isspecified in Part II of Second Schedule.

(5) Every secondary standard capacity measure shall conform, as regards denomination, material used in construction, and design, to the specifications laid down In Part IIIof Second Schedule.

(6) The maximum permissIble error in respect of any secondary standard capacity measure, on verification or re-verification after adjustment, shall be such as Is specified in Part IIIof Second Schedule.

5.Working standards

(l) Everyworking standard wetghtshall conform, as regards denomination, material used in construction, and design, to the specifications laid down in Part Iof Third Schedule.

(2) The maximum permissible error in respect of any workIng standard weight, on verification or re verification after adjustment, shall be such as Is specified In Part I of Third Schedule.

(3) Every working standard metre bar shall conform, as regards material used in construction, and design, to the specifications laiddown in Part II of third Schedule.

(4) The maximum permissible error In respect of any working standard metre bar, on verifICation or re-verlficatlon, shall be such as Is specified In Part II of Third Schedule.

(5) Every working standard capadty measure shall conform, as regards denomination, material used ' in construction, and design, to the specifications laid down In Part III of Third Schedule. . -.------~~~----~----------------------~------ • ; ,.,~: ~ .. _- _.... •• ,•.•••• -.• -,.--.-~.- ••• -....... ••• ,-_ - --- -'. -_ ••__ ._ -_,,' .- • • •••• y•••• ~"-" _•• -----:--' '_'''_'- '-"'~-"""---'-"-- ._"_ ••,;..".......~- ['q1T[ n-~ 3(i)] 319

(6) The maximum permissible error In respect of any working standard capacity measure, on verification or re-verification after adjustment, shall be such as is specified in Part II~ofThlrd Schedule.

6. Power to specify any other reference, secondary or working standard

(1) Any other reference standard, or secondary standard, or working standard shall conform as regards the denomination, material used in construction, and design, to such specifications as the Central Government may, from time to time, by notifICation, specify,

(2) The maximum permissible error In relation to such other reference standard, or secondary standard, or working standard shall be such as the Central Government may, from time to time, by notification, specifyand different maximum permissible errors may be specified in relation to different types of reference standards, or secondary standards, or working standards. CHAPTERW SPEOACATIONS OF STANDARD EQUIPMENT

7. Reference standard balances

(1) A set of reference standard balances shall be maintained at every place where the reference standard weights are kept for the purpose of verification of secondary standards.

(2) The number, types and specificationsof such balances shall be as are spedfied in Part 1of Fourth Schedule.

(3) Every reference standard balance shall be verified at least once In six months and shall be adjusted, if necessary, to make it correct within the limits of sensitivity and other metrological qualities as are speclfled In Part I of Fourth Schedule. s.Secondary standard balances

(1) A set of secondary standard balances shall be maintained at every place where secondary standard weights are kept for the purpose of verification of working standards.

(2) The number, types and specificationsof such balances sh(!11be as are specified in Part IIof Fourth Schedule,

(3) Every secondary standard balance shall be verified at least once In one year and shall be adjusted, if necessary, to make It correct within the limits of sensitivity and other metrological qualities as are specified in Part IIof Fourth Schedule.

9. Working standard balances

(1) A set of working standard balances shall be maintained at every place where working standard weights are kept for the purpose of verification of weights intended to be used for transaction or protection,

(2) The number, types and specificationsof such balances shall be as are laid down In Part III of Fourth Schedule.

(3) Every working standard balance shall be verified at least once in a year and shall be adjusted, if necessary, to make it correct within the limits of sensitivity and other metrological qualities as are spedfled In Part IIIof Fourth Schedule.

10.Power to specify the standard equipment The Central Government may, by notification, specify such other standard eqUipment as it may think necessary to carry out the provisions of the Act and every such standard equipment shall conform, as regards the metrologlca I qua lities, to such spedfications as the Central Govemment may, in the same notification or subsequent notification, specify.

CHAPTER IV WEIGHTS OR MEASURESAND WEIGHING AND MEASURINGINSlRUMENlS

11.Weights

(1) Save as otherwise provided in these rules, every weight used or intended to be used-

(a). in any transaction, or

(b) for protection, shall conform, as regards physical characteristiCS, configuration, constructional details, materials, performance, tolerances and suchother details, to the corresponding specifications laid down for suchweight in Fifth Schedule.

(2) The maximum permissible error in respect of such weight shall be such as is specified In Fifth Schedule,

(3) Nothing in this rule shall apply to the product of an Industry which is required, by or under any law for the time being in force, to conform to any other specifications with regard to the matters spedtted In sub-rule (1) or sub-rule (2), if, under such law, the product Is required to conform to the specifications laid down by the International Organisation of Legal Metrology with regard to the matters aforesaid,

12. Measures (other than measuring instruments)

(1) Everymeasure used or intended to be used for-

(a) any transaction, or

(b) protection, • __ •• _~ ••••••• ..; •• _ .. __ '-_ __ , .• J •• 320 THE GAZETTE OF INDIA: EXTRAORDINARY [PART II-Soc. 3(i)] shall contorm.cas. regards physical characteristics, configuration, constructional detailS, materials, performance, .tolerances and such other details, to the corresponding. specifications laid down for such measure in Sixth Schedule.

(2) The maximum permissible error 'In such measure shall .be such as is specified in the corresponding. specifications laid .down for such . measure in Sixth Schedule.

13. Welghl~g and measuring Instruments

(1) Every.welghlng Instrument usedor intended to be used-

(a) in any transaction, or

(b) for protection, shall conform, as regards physical characteristics, configuration, constructional detatls, materials, performance, tolerances and such other details, to the corresponding speCifications laid down for such weighing instrument 1nSeventh Schedule:

(2) Every measuring instrument used or Intended to be tlsed-

(a): in anytransactJon, or

(b) for protection, shall conform, as regards physical characteristics, configuration, constructronat details, materials, performance, tolerances and such other details, to the corresponding spedttcatlons laid down for such measuring instrument In Eight Schedule.

(3) The maximum permissible error on such weighing or measuring Instrument shall be such as is specified in the corresponding specifications laid down for suchweighing or measuring instrument In Seventh Schedule or as the case may be in Eighth Schedule.

14. Procedure for carrying out calibration of vehide tanks, etc. The procedure for carrying out calibration of vehicle tanks, etc. shall be as is specified In Ninth Schedule. CHAPTERV IMPORTOFWEIGHTSAND MEASURES

15. Registration of Importer

(1) Every manufacturer or dealer of weight or measurewho Intends to Import any weight or measure shall apply to the Director, through the Controller of the State in which he carries on such business, for registration of his name as importer In the form specified in Tenth Schedule.

(2) Every application received by the Controller under sub-rule (1) shall be forwarded by him to the Director with a report as to the antecedents and technical capabilities of the applicant.

(3) Nothing in this rule shall take away or abridge the right of any person referred to in sub-rule (2) to carry on the business of importing of any weight or measure until he has been informed by the Director In wfitlng that he cannot be registered as an Importer, and on receipt of such letter he shall stop forthwith the Import of any weight or measure: PROVIDEDthat registration of a person carrying on, at the commencement of these rules, the business of importing weights or measures shall not be refused except after giving him a reasonable opportunity of showing cause against the proposed action.

(4) Every application for the. registration of an importer shall be submitted to the Director, In the manner aforesaid, together with the fee specnled In Twelfth Schedule, at least one month before the date on which Import is proposed to be made.

(5) The registration of a person as an importer shall remain effective for a period of five years from the date of such registration.

(6) On the expiry at the period of registration as an importer, the Director may, on the application of the registered importer and on payment of the prescribed fee, renew registration for a like period.

(7) The registration or renewal of the registration of a person as an importer may be suspended or revoked before the expiry of the period of validity thereof, If the Director is satisfied after an inquiry, and after giving to the person concerned a reasonable opportunity of being heard, that any statement made by such person in the application for registration or renewal of registration was false or incorrect In material particulars or that such person has contravened any provision of the Act or rules made there under or any term or condition of such registration.

16. Conditions, etc. for manufacture of aweight or measure exduslvely for export

(1) The provisions of this rule shall apply to weights or measures which are made or manufactured exclusively for the purpose of export.

(2) No non-standard weight or measure shall be made or manufactured by any person unless he hasobtained the previous permission from the Central Govemment.

(3) Every person intending to manutacture any non-standard weight or measure for the purpose of export shall make an application for permission to the Central Government on payment of a fee of rupees five hundred for such permission authorising him to manufacture suchweight or measure and shall in such application Indicate- (~II-~ 3(0] • 321

(a) his name and full address;

(b) location of the factory in which such weight or measure is proposed to be manufactured;

(d) documentary or other evidenceindicatingthe existence of a firm contract for the export aforesaid or where there is no such firm contract for export, documentary or other evidence Indicating that there Is likely to be a demand for the export of non-standard weight or measure.

(4) The CentralGovernment shall, If It issatisfied from the documentary or other evidence produced by the applicant or otherwise that the applicant Intends to manufacture non-standard weight or measure for export, grant the permission authorising him to manufacture such weight or measure:

Provided that the Central Government may, if it Is satisfied that the applicant has contravened any of terms and conditions of the permiSSionor that weights or measuresmanufactured by the applicanthavefourd their way i!lto the Indian market or that the applicant had made any statement in his application for the permiSSionwhich Is false In material particulars or he had concealed some material particulars, cancel the permission:

Provided Further that no permiSSion shall be cancelled except after giving to the applicant a reasonable opportunity of shOWingcauseagainst the proposed action.

(5) Every permission granted under sub-rule

(4) shall remain valid for a period of one year and shall be renewed for a like period on payment of a like fee unlessthe Central Government is satisfied that the applicant hasmade any statement in hisapplication which is false In material particulars or that he had concealed some material particulars or had contravened any provision of the Act or any rulemade there under:

Provided that no order for the refusal to renew a licence shall be made by the Central Government except after giving the applicant a reasonable opportunity of showing cause against the proposed action.

(6) Every person who is granted permission under this ruleshall submit to the CentralGovernment, at the end of the calendar year, a statement as to the quantity of the non-standard weights and measures exported by him and the particulars of the person to whom such export has been made.

17. Prohibition on sale ofnon~standard weight or measure within the country No non-standard weight or measure made or manufactured exclusively for export shall be sold or otherwise distributed within the territory of India.

18. Maintenance of record In relation to nenstandard weight or measure . Every person who makes or manufactures any non-standard weight or measure for export shall maintain a monthly record of the number of such non standard weIghts or measures manufactured by him, . number of weights or measures already exported by him, and number riweights or measures in stock or under production. The record so maintained shall be open to Inspection by any officer authorised by the Central Government in this behalf.

19. Samplecheddng of weIght and measure

(1) Standard weights or measures which are intended for export shall not ordinarily require any verification and stamping, but If the party to whom the export Isto be made so requires,a samplechecking of such weight or measure shall be made by such agencyas the Central Government may specify in this behalf, and thereupon the agency so specified shall, after checking the weight or measure, issue a certificate Indicating whether or not such weight or measure conforms to the requlr~ments of the Act andtne rules made there under.

(2) The weight or measure to be checked as sample under this rule shall be selected at random and proper records shall be maintained with regard to the sample checking so made.

(3) The Central Government shall, while specifying the agency for checking the weight or measure, ensure that the agency completes the checking well In time so that the export of the weight or measure Is not delayed by reasonof suchchecking.

20. Checking of non~standard weights and measures sample which are to be exported

(1) Non-standard weight or measure, which Is ,made or manufactured exclusively for export, shall not ordinarily require any verification and stamping, but if the party to whom the export is to be made so requires,a samplecheckingof suchweight or measure shall be made by such agency as the Central ~vemment may specly in this behalf; and thereupon the agency sospecffiedshall, after checkingthe weight or measure, Issuea certificate Indicating whether or not such weight or measure conforms to the specifications given by the party to whom the export . is to be made or, where the party aforesaid has not givenany specification,whether the weight or measure conforms to the specifications laid down by the manufacturer. ~----'-- _-_ - __..I__.•._-- .. 322 THE GAZETTE OF INDIA: EXTRAORDINARY [PARTIl-SEc. 3(i)] . (2) The weight or measure to 'be checked as sample under this rule shall be selected at random and proper records shall be maintained with regard to the sample checking so made.

(3) The fee for checking of any non-standard weight or measure shall be--

(i) if it Is similar to ,any standard weight or measure, equal to the fee leviable for the verification and stamping of such standard weight-or:measure; and

(ii) where such.non-standardweight or measure is not 'similar to any standard weight or measure, the Central Government may speclty such amount as fees as ls . commensurate with the labour Involved in checklng the non-standard weight or measure.

(4) The Central Government shall, while specifying the agency for checking the non-standard weight or measure, ensure that the agencycompletes the checking well In time so that the export of such weight or measure Is not delayed by reason of such checking.

CHAPTER VI NON-STANDARDWEIGIiT ORMEASURETO BEUSED FORsaENTIFIC INVESTIGATIONORRESEARCH

21. Permission to get manufactured non standard weight or measure for scientific Investigation or research Where the manufacture of any non-standard weight or measure Is needed exclusively for the purpose of SCientific Investigation or research, the personneedingsuchnon-standard weight or measure shall make an application to the Central Government for permission to get such non-standard weight or measure manufactured and on receipt of such application, If the Central Government Issatisfied that the manufacture of such' non-standard weight or measure is needed for the purpose aforesaid, it may authorisethe applicant to get the non-standard weight . or measure needed by him manufactured by such manufacturer as he may think fit, and thereupon, it shall be lawful for such manufacturer to manufacture the saidnon-standardweight or measure Inaccordance with the Specificationsgiven by the applicant: <'. •

Explanation: For the purpose of this rule, a non standard weight or measure means a weight or measurewhich Is, or Isproposed to be, manufactured In a~prdance with any unit of weight or measure, other.than standard unit of weight of measure specified by or under the Act... ..:,,' .

CHAPTER VII MISCELLANEOUS

22. The manner of disposal of goods seized under this Act/rule

(1) Where any goods seized under sub section (3) of Section 15 are subject to speedy or natural decay, the Director or any person authorised by him or Co~troller and other LegalMetrologyOffIcers in this behalf shall have the goods weighed or measured on a verified w.eighing or measuring instrument available with him or near the place of seizure and enter the actual weight or measure of the goods In a form specified by the Director for this purpose and shall obtain the signature of the trader or his agent or such other person who hascommitted the offence. The goods in question shall, after such weighing or measuring is returned to the trader or the purchaser as the case may be: PROVIDEDthat if the trader or his agent or the other person(who hascommitted the offence) refuses to sign the form, the Director or the personauthorised by him In this behalf shall obtain the signature of not less than two persons present at the time of such refusal by the trader or his agent or other person.

(2) Where the goods seized under sub section(1) are contained in a packageand the package is false or does not conform to the provisions of the Act or any rules made there under and the goods In such package are subject to speedy or natural decay, the Director or any person authorised by him or Controller 81'\dother Legal Metrology Officers in this behalf, so far as may be, may dispose of the goods In such package in accordance with the provisions of sub-rule (1).

(3) Where the goods seized under sub-rule (1) are not subject to speedy or natural decay, the Director or any person authorised by him or Controller and other LegalMetrology Officers Inthis behalfmay retain the packagefor the purpose of prosecution under this Act after giving the trader or his agent or the other person (who has committed the offence) a notice of such seizure.

23. Time within which unverified weight and measure to be verified and stamped No unverified weight or measure, seized under sub-section (3) of Section 15, shall be forfeited if the person, from whom such weight or measure was .seized, agrees to get the same verified and stamped within a period of ten days or such extended period from the date of such seizure; and for this purpose, the person making the seizure of such weight or measure shall afford a reasonable opportunity by ------_ __,- ----------:--------:-~-- [qJTT II-'~U6 3( i) ] 323 returning suchweight or measure excruslvely for the verification and stamping.

24. Register and reports to be maintained by persons referred to In Section 17 of the Act

(1) Every person referred to in sub-section (1) of Section 17 shall maintain a register In the appropriate form set out In Eleventh Schedule.

(2) Notwithstanding anything contained In sub rule (1), if the Director Is of the opinion that haVing regard to the nature or volume of the businesscarried on by any maker, manufacturer, dealer or repairer, it Is necessary to do so, he may, by order, exempt any such maker,manufacturer, dealer or repairer from the operation of that sub-rule. - .

25. Scale of fee The scale of fees to be collected for the service specified in column (2) of Twelfth Schedule shall be at the rate specified In column 3of the said Schedule.

26.Useofregfonallanguages - Any legend or denomination specified in any Schedule to these rules, which is required to be Indicated on any weight or measure in English, or in Devanagri script, may also be indicated (In addition to English or Devanagrl) on such weight or measure in such regional language as the manufacturer may consider to be practicable.

27. Periodical verification. of weights or measures-

(1) Every weight or measure used or Intended to be used in any transaction or for protection of living beings or things In clause (k) of Section 2 shall be verified and stamped by the legal Metrology Officer in the State in which suchweight or measure is put to use and shall be re-verlfled and stamped at periodical Intervals.

(2) There-verlflcation shall be carried out on the completion of a period of,-

(a) twenty four months for all weights, capadty measures, length measures, tape, beam scale and counter machine,

(b) sixty months for storage tanks, and

(3) Notwithstanding anything contaIned in sub rule (2) every weight or measure which has been verified and stamped In Situ shall, if it is dIsmantled and re-installed before the date on which the verification falls due shall be duly re-verlfled and stamped, before being put into use.

(4) NotwIthstanding anything contained in sub rule (1) every weight or measure which has been verified and stamped shall, If It Is repaired before the date on which the verification falls due shall be duly re-verlfled and stamped before being put into use.

28.Qualifications of Legal Metrology Officer

(1) No person shall be appoInted as Legal Metrology Officer unless he -

(a) Is a graduate of a recognized university In Science(with physics asoneof the subjects), tech nology or engineering or holds a recognizeddiploma Inengineeringwith three years profeSsional experience; and

(b) is able to speak, read and write the regional language of the State.

(2) Nothing in sub-rule (1) shall apply to offldals who have been working as Legal Metrology Officer and are also eligible for promotion to the next higher grade of legal Metrology OffIcer on the date of commencement of these rules.

(3) The person appointed to the post of Legal Metrology Officer shall have to successfully complete _ the basictraining course at the Indian Institute of Legal Metrology, Ranchi before his posting.

(4) The Central Government may, In conSideration of the practical difficulties faced by the State Government and on its recommendation, relax the qualification specified in sub-rule (1) for the post of legal Metrology Officers for that State.

29. Nomination of Director bya Company under the Act Every company shall inform the Director (legal . Metrology) or the concerned Controller or his authorized officer, by notice in duplicate, in the format specified In thirteenth Schedule containing the name and address of its Director after obtaining his consent in writing, who has been nominated by the company _under sub-section (2) of Section 49 to be in-charge of and be responsible for the conduct of businessof the company or any establishment, branchor unit thereof.

30. Repeal and savings

(1) The Standards of Weights and Measures (General) Rules, 1987 (herein under referred to as the said rules) are hereby repealed.

Provided that such repeal shall not affect: (CI) the previous operations of the said rules or anything done or omitted to be done or suffered therein; or

(b) any right, privilege, obligation or liability Clcqulred,accrued or incurred under the said rules; or --- -'1". --4--- ~ .- . -- -"~~---,--.-------- - - 324 THE.GAZETTE OF INDIA: EXTRAORDINARY [PARTU-SEC. 3(i)]

(d) any investigation, legal proceedings or remedy in respect of .any such right, privilege, obligation, liability, penalty, forfeiture or-punishment as aforesaid. And any such :investigation, legal proceeCIil"!gsor remedy may be Instituted, continued or enforced and any such penalty, forfeiture .or 'Punishment may be Imposed as if the said rules had not been rescinded.

(2) Notwithstanding such repeal anything done or any action taken or purported to have been done or taken indudlng approval of letter, exemption granted, fees collected, any adjudication, enquiry or investigation commenced, license and registration of menutecturers, dealers, importers of weights and measures, non-standard weights and measures or show cause notloe, dedslon, detenninatfon, approval, authorisation Issued,given or done under the said rules shall.if in force at the commencement of the said rules continue to be in force and have effect as If Issued, given or done under the corresponding provisions of these rules.

(3) The provlslons of these rules shall apply to any application made to the Central Government or as the casemay be the State Government under the said rules for licence, registration of manufacturers, importers, dealers, repairers of weights and measures pending at the commencement of these rules and to any proceedings consequent thereon and to any registration granted In pursuance thereof.

(4) Any legal proceeding pending In any court under the said rules et the commencement of these rules may be continued In that court as If these rules had not been framed.

(5) Any appeal preferred to the Central Government or as the case may be the State Government under the SC!I1d rules and pending shall be deemed to have beer. made under the corresponding provisions of these rules. INDEXOFSOtEDULE OFntE LEGALMETROLOGY (GEN~RAL) RULES,2011 FIRSTSOtEDULE PARTI PARTII Reference Standard Weights Reference Standard Metre Bar SECONDSOtEDULE Secondary Standard Weights Secondary Standard Metre Bar Secondary Standard Capacity Measures PARTI . PARTIl PARTIII PARTI PARTII PARTIII PARTI PARTII PARTIII PARTI PARTII PARTIII PARTI PARTII PARTIII PARTIV PARTV PARTVI PARTVII PARTVIII ntIRDSOtEDULE Working Standard Weights Working Standard Metre Bar Working Standard Capadty Measures FOUR1HSCHEDULE Reference Standard Balances Secondary Standard Balances Working Standard Balances FIFTHSOtEDULE Weights (Other than Carat weights) carat Weights Standard Weights for testing of High Capacity Weighing Machine SDCTHSCHEDULE Uquid capacity Measures Dispensing Measures Liquor Measures Length Measl,lres(Non-Aexible) . Folding Scales Fabric or Plastic Tape Measures Steel Tape Measures . Surveying Chains PARTIX Tapes for Use in Measurement of 011 Quantities SEVENTH SCHEDULE-HEADINGA SPEOF,[CAllONS FOR NON-AUTOMAllC WEIGHINGINSJRUMENlS SEVENTH SCHEDULE-HEADINGB PARTI PARTII Beam Scales Counter Machines SEVEHTH SOtEDULE- HEADINGC AlITOMAllC RAIL WElGHBRIDGE SEVENTH SOtEDULE- HEADINGD AUTOMAllCGRAVIMETRIC .FIWNG INSTRUMENTS SEVENIli SOtEDULE- HEADINGE DISCONTINUOUSTOTAUZlNGAUTOMAllC WEIGHINGINSlRUMENT(TOTAl.lZING HOPPER WBGHERS) EIGHtHSOiEDUlE SPEaFICA1l0NSFOR MEASURINGINSTRUMENTS PARTI PARTII PARTIII Volumetric Container Filling Machines Bulk Meters Water Meters - .... -- - -----: [~II-~ 3(i)] 325 PARTIV Measuring Systems for LiquidsOther than Water Volumetric Container Type liquid Measuring Device alnlcal Thermometer Monometers of Instruments for MeasurIng Arterial Blood Pressure (Sphygmomanometers) Taximeter Compressed gaseous fuel (CNG) measuring systems for vehldes NINTH SCHEDULE PROCEDURE FOR CARRYING 0t1T CAUBRATJON OF VEHICLE TANKS fTC. PARTV PARTVI PARTVII PARTVIII PARTIX PARTI CalibratIon of Vehicle Tanks for Petroleum Productsand other Liquids Method for calibration of Vertical 011 Storage Tanks Method for Computation of capadty Tables for Vertical Oil Storage Tanks. TEN'nfSOiEDULE APPllCAlION F()~ FORREGlSTRAlIONOF IMPORTER OF WEIGHTS AND MEASURES B..fVENTHSOIEDULE RE~RT08E~NTAlNED8YTHE MANUFACTURERS/DEALERS/REPAIRERS OF WEIGHTS AND MEASURES TWaFTHSCHEDULE PARTII PARTIII SCA.LE OF FEE lHIRJW(THSCHEDUl.E Format for n~mlnation of the Director by the Company fIRSl'SCHEDULE DENOMINAnO~,MATERJALS,SHAPEAND P~BLEERRORS,IN RESPECTOF REFERENCE STANDARDS [SBe Rule3}

PART I REFERENCE STANDARD WEIGHTS

1. Denominations Kilogramseries Gramseries Milligram series

(1) (2) (3) 5 500 500 2 200 200 2 200 200 1 100 100 50 SO 20 20 '-17u t;nil - i')..

(1) (2) ~---=--- =-=---=-=-=--=-- ~- -___:_:_:.. _::_-=-:-:....=..=---...::...::.:_-'- ---=-=----..:..=.=-----:____::_::.- --=-----:;;....- -.=------- ---

(3) 20· 10 5 2 2 1 20 10 5 2 2 1

2. Materials

(a) WeIghts of 5 kg to 19 shalf be made from admiralty bronze (88Cu, 10So, 2Zn), nickel chromium alloy (80 Ni, 20 Cr) or austenItic stainlesssteel (25Ni,20Cr) or (20Ni,250).

(b) Weights of 500 mg to 10mg shalf be made from wire of either pure platinum, nickel chromium alloy (80 Ni, 20 Cr) or austenitic staInless steel (25 NI, 20 Cr) or (20 Ni, 25 Cr).

(c) WeIghts of 5 mg to 1 mg shall be made of aluminium wire. Copper, silicon and zinc contained as impurities in aluminium shall not exceed 0.3 per cent in the aggregate.

Note:Thematerial used for all the weights shall be non-magnetic and it shall be ensured that the finished weIghts are also practically non-magnetic.

3. Shapeand finish

(a) For kilogram and gram series- Integra! cylindrical body with knob rounded at top.

(b) For milfigram series- The weights shall be made from the wire having five segments for sao, 50, 5 mg weights, two segments for 200, 20, 2 mg weIghts and one segment for 100, 10, and 1mg weights. One end of the wire shaff be bent at right angles for the purposesof lifting It with a pair of forceps.

(d) The entire surface of the weights, including their base and corners shall be free from any roughnessand the surfaceof the weights when inspected vlsuafly shall not show any porosity and shall have a mirror finish.

4. Maximum permissible errors Denomll18tion Permissible error:t mg

(1) (2) Skg 2kg 1 kg

7.5

3.0

1.5 ~THE'GAZETIE!OF 'INDIA: EXTRAORDINARY [PARTII-SEC. 3(i)]326

(1) 500g 200g. 100g SOg 20g 109 Sg 2g 19 SOOmg 200mg 100mg 50mg 20mg 10mg 5mg 2mg .(~) rO.75 .. :0.30 :0;15 ~O;lO :0;080 ,0:060 ;0;050 0;040 :0;030

0.025

0.020

0.015

0.012

0.010

0.008

0.006

0.006 1mg 0',006

5. Protective and canying case

(a) These weights shall be stored In their boxes' made from teakwood or any other suitable non-corrosive material with proper housing lined with chemically neutral velvet, chamois leather or soft plastic material. Wood used in such boxes shall be reasonably free from resins and volatile materials. Glue shall not be used for fixing velvet or such other material. The weights shall be housed in such a manner soasto avoid their movement during transit.

(b) Each milligram weight shall be provided with a separate housing. A covering glass or a sheet of any other transparent and non reactive and non-corrosive material shall be provided so as to ensure that these weights are not dislocated during transIt.

(c) A suitable device for lifting the klloqramand gram weights covered with chamois leather or other suitable material shall be provided. A pair of forceps capable of liftIng easily milligram weights shall also be provided,

6. Insalption The boxes contaInIng the weights shall have the following Insaiptlons:

(a) The words 'Reference Standards Weights' .

(b) The Identification number of such boxes,

(d) The material used for weights, (I) kilogram and gram series,

(ii) milligram series,

(e) The year orrnanutecture,

(f) The verification mark of the NPL.

PART 11- REFERENCE STANDARD METRE BAR

1. Material The Reference Standard Metre Bar (hereafter called metre bar) shall be manufactured from 58 per cent nIckel-steel.

2. Shape ind dimensions

(8) The metre bar shall be of H-sectlon, approximately 25 mm x 2S mm (as per Figure 1)

(b) The overall length of the metre bar shall be 1030 ±1 mm and the graduated length shall be 1008 mm.

3. Finish The graduated surface shall be bright highly polished, and free from surface Irregularities in the neighbourhood ofthe graduation marks.

4. GI'Bdu6t1ons

(a) The main scale shall be situated on the neutral plane and shall be graduated In mlllimetres throughout from 0 to 1000 rnm.

(b) The main scale shall also have one additIOnal mm mark before 0 and another after 1000 mmmark.

(c) An additional fine scale shall also be provided at each end of the main scale for calibrating a mlcrometre microscope. This fine scale shall consist of ten 0.1 mm graduations (1 mm sub-divided Into 10 parts) and shall be situated before the first graduation mark after leaving a blank space of 2 mm and also after the last mark with the same blank spacing.

(d) The graduation marks shall be well-defined, of symmetrical section and havedean edges.

(e) The width of graduation marks shall be between 8 and 10micrometres. This width shall be constant to within ten per cent over the length of each mark between the longitudinal setting lines.

(f) The graduation marks shall not differ in width one from another by more than ± 10% of the average width of all the marks. [tfl7T II-~ 3(i)]

(g) The graduation marks shall be parallel to one another to within one mlcrometre between the longitudinal setting lines.

(h) The graduation marks shall besquare to the scale axis to within ten minutes of arc.

(i) The length of graduation marks shall be as follows :- 2 mm for half em marks. 1mm for mm marks. The marksshall bedisposed equally oneither side of an Imaginary centre line. .

(j) The lengths of the graduation marks on the two fine scales referred to In 4(c) shall be as follows:- 3mm for first and last mark. 2 mm for 0.5 mm marks. 1mm for 0.1 mm marks.

(k) The Bessel points shall be indicated by two vertical lines marked on either external side of the metre bar. The Bessel points shall be 571mm apart, and shall be disposed equally on either side of the 50 mm mark. (I) No figures or numerals shall be marked on the surface of the main scale.

(m) Whensupported at the markedBessel points, the graduated surface shall be flat to within

0.05 rnm, l.e. all points on the surface shall be between two parallel planes 0.05 mm apart. .

5. Auxiliary scale

(a) An auxiliary scale shall be marked on one of the top edges of the metre bar.

(b) The auxiliary scale shall consist of 1000 marks corresponding to the marks of the main scale. . Cc). The marks of the auxiliary scale shall be . collinear (i.e., passing through the same vertical planes) with the graduation marks of the main scale to within ±0.1 mm.

(d) The width of graduation marks shall be not more than 100 micrometres and shall be clearly visible to the naked eyes having normal vision.

(e) The length of the graduation marks shall be :

2.5 mm for em marks.

2.0 mm for half cm marks.

1.5mm for mm marks. One of the ends of all the marks shall lie on a straight line.

(f) The centimetre graduation marks shalt be numbered in the Increasing order of numeration.

(g) The height of the numerals and the letters shalt be apprOXimately 3mm.

6. Setting lines

(a) A pair of longitudinal setting lines shall transverse the graduation marks and shall be parallel to the scale axis to within one minute of arc.

(b) The two longitudinal lines shall be disposed symmetrically on either side of the centre of the graduation marks. . '" ~~::'i>.: 1! REFERENCESTANDARD METRE BAR Rgure-l 327 328 ·THE :.GAZETTE OF INDIA: EXTRAORDINARY

(1) [PART ll-Soc. 3(i)J 1(2) (3) 100 100 ISO SO 20 20 20 20 10 10 5 5 2 2 2 2 1 1

(c) The separation of the longitudinal setting lines shallbe.0.2 mm andrthelrwidth shall be in between B,and·10:micrometres.

(d) EachIol)9ftudlnaJsetti'19:tineshall be straight to wlthln~30mlcrometres.

(e) The longitudinal setting linesshall be parallel to eaeh.otherto.within SO.micrometres.

7. Maximum permissible error

(a) When the metre bar ts supported on its marked: Bessel.polnts, the errors In length between.anytwoqraduation marks of the main scale:attnetemperature of 2O"C,shall not exc.eed!O;1:)10·mm.

(b) In the ;ta5e of the flne scales, the error between any two 0.1 mm marks shall not exceed 0.005 mm.

8. Insaiption The metre bar shall bear the following Inscription:

(a) the words "REFERENCESTANDARDMETRE . BAR",

(b) the identification number of the metre bar,

(c) the verification mark of the NPL, after the first calibration and marks of subsequent . verification to bemade on the plate of the carrying case of the metre bar,

(d) the name of the manufacturers,

(e) the material of the metre bar,

(f) the words, figures and letter "STANDARD AT 20°C',

(g) the year of manufacture.

9. Protective and carrying case

(a) The standard metre bar shall be housed in a case made from suitable material and provided with a handle, lined Internally with velvet, a plastic material or any other material and In such a way that the metre bar is not likely to be damaged, particularly by shocks or corrosion.

(b) The case shall have affixed on It a plate bearing the inscription "REFERENCE STANDARD METRE BAR" and the identlflcatlon number. SECONDSOiEOUlJ: DENOMlNAnONS, MATERIAlS, SHAPE AND PERMISSIBlE ERRORS IN RESPECT OF SECONDARY STANDARDS [SeeRule 4 PARTI-SECONDARY STANDARD WEIGHTS J. Denominations Kilogram series Gram series Milligram series

(1) (2) (3) 10 500 5 200 2 200 500 200 200 2 1

2. Materials

(a) Weights of 10 kg to 1 g shall be made from admiralty bronze (B8 Cu, 10 Sn, 2 Zn), or nickel-chromium alloy (BO Ni, 20 Cr) or austenitic stainless steel (20 Ni, 25 Cr) or (25 Ni, 20 Cr).

(b) Weights of 500 mg to SOmg shall be made from cupro-nickel (75 Cu, 25 Ni), or nickel chromium alloy (80 Ni, 20 Cr), or austenitic stainless steel (20 NI; 25 Cr), or (25 NI, 20 Cr).

(e) Weights of 20 mg to 1mg shall be made of aluminium sheets. Copper, silicon and zinc contained as impurities In aluminium shall not exceed 0.3 per cent In the aggregate.

3. Shapeand finish

(a) For kilogram and gram series-Integral cylindrical body with knob flattened at the top. Weights of 10 kilogram to 100 gram (both inclusive) shall haveadjusting devices.

(b) For milligram series-the weights shall be In the form of square sheets, one of the corners being bent at right angle.

(d) The entire surface of the weights, including their base and corners shall be free from any roughness and the surface of the weights, when inspected visually, shall not show any porosity and shall have a mirror polish appearance.

4. Maximum permissible error Denomination Permissible error.:t mg 10 kg 5 kg 2 kg 1 kg 500g 2009 100g 50g so 25 10 5

2.5

1.0

0.5

0.30

(1) (3) 329

(2) 20g lag 59 29 19 SOOmg 200mg l00mg SOmg 20mg 10mg Smg. 2mg Img

0.25

0.20

0.15

0.12

0.10

0.08

0.06

0.05

0.04

0.03

0.02

5. Protective and canying case

(a) These weights shall be stored In their boxes made from teakwood or any other suitable non-corroslve material with proper housing lined with chemically neutral velvetr chamois leather or soft plastic material, Wood used in such boxes shall be reasonably free from resins and volatile materials, Glueshall not be used for fixing velvet or such other material. The weights shall be housed in sucha mannersoas to avoidtheir movement during transit.

(b) Eachmilligram weight shall be providedwith a separate housing. A covering glass or a sheet of any other transparent, non-reactive . and non-corroslvematerial shall beprovided so as to ensure that these weights are not dislocated during transit.

(c) A suitable device for lifting the kilogram and gram weightsr covered with chamois leather or other suitable material, shall be provided. A pair of forceps capable of lifting easily milligram weights shall also be provided.

6. Inscription The boxes containing the weights shall have the following inscriptions:-

(a) the words 'SECONDARY STANDARD W8GHTS',

(b) the Identification number of the secondary standard weIghts,

(d) the material used for weights

(i) kilogram & gram series

(ii) milligram series,

(e) the year of manufacture, (fj the mark of verification. PARTD~SECONDARYSTANDARDMETREBAR

1. Materia' The secondary standard metre bar (hereafter called metre bar) shaHbe manuf!ctur~ from 58 per cent nickel-steel.

2. Shape and dimensioni

(a) The metre bar shallhavea rectangularcross section with dimensIons 30mm x lSmm approximately.

(b) The top surface shall have two rectangular grooves along its length (as per Figure 2).

(c)· The pverall length of the measure shall be . 1030±1 rnrn and the graduated length shall bel010mm.

(d) Ungraduated space of 10 mm shall be left after the last graduatIon mark.

3. Finish The graduated surface shall be bright, highly polished and free from surface Irregularities in the neighbourhood of the graduatIon mark.

4. Graduations

(a) The metre bar shall be graduated in milllmetres throughout from 0 to 1000mm.

(b) A lengthof 10mm beforethe zerograduation mark shall also be graduated in millimetres.

(d) The width of the graduation marks shall be uniform to within ± ten per cent of the average width of all the marks.

(e) Eachgraduation marks shall be straight to within ten micrometres over its length.

(f) The graduation marks shall be parallel to one another to within ten mierometres.

(g) The graduation marks shall be square to the scale axis to withIn twenty minutes of arc.

(h) The graduation marks representing centimetres shall be longer than those representing half centimetres and the graduation marks representing half centimetres shall be longer than those representing millimetres. (I) The length of the graduation marks shall be not less than: 2 mm for mm marks. 3 mm for half cm marks. 4 mm for em marks. These marks shall be disposed equally on either side of an Imaginary centre line defined by the two setting lines. 330 -'THE 'GAZETTE OF INDIA: EXTRAORDINARY [PARTU-SEC. 3(i»)

(j) There sheillbe two short Iongftudinal;setting Jineseach'of·S mm in length which shall be drawn leavl~g a'blank space.of 2 mm, the one before theflrstand.the-other after the last graduation mark. Jhe:longitudinal lines shall be:on a straight line which represent the imC!lglna.ycentral'llneand the departure from the eentralune.snallbe not more than O.lmm.

(k) When sl!Pported'on the Bessel points or on a f18i surface ,the graduated surface shall be flaHo\wtthln,O:OSmm, i.e. all the points on the,surface shall be between two paraUel planes:O;OSmm apart. S. Auxiliary scale

(a) Auxiliary scale shall be marked on one of the top edges of the metre bar.

(b) The auxiliary scale shall consist of centimetre and half centimetre marks corresponding to the marks of the main scale. ,(c) The marks of the auxiliary scale shall be collinear (passing through the same vertical planes) with the graduations of main scale towithln±O.l mm.

(d) The width of the graduation marks shall be not more than one hundred mlcrometres.

(e) The graduation marks representing centimetres shall be longer than those representing half centimetres.

(f) The length of the graduation marks shall be not less than: 3mm for em marks, and 2 mm for half em marks. One of the ends of the marks shall lie on a straight line.

(g) The centimetre graduation marks shall be numbered in the Increasing order of numeration.

(h) The height of the numerals and the letters shall be approximately 3mm.

6. M6ximum permissible em»: The error on the length between any two graduation marks on the secondary standard metre bar, at the standard temperature of 20°C, shall not exceed the value "e" calculated according to the folloWing formula: e = ± (25 + L/40) micrometres Where L Is the nominallengttl in millimetresof that part of themetre bar betweenthe two graduationmarks, the error on which is being determined. The calculated value or"e" shall be rounded to the nearest integer.

7. Insaiptlon The metre bar shall bear the ,following inscriptions:

(a), the words "SECONDARYSTANDARDMETRE BAR",

(b) an Identification number of the secondary standard metre bar,

(c) the name of the manufacturer, • , I I I. it .. • .. if ... .. . " .. '.! '" .~' .. ..... III II ~ , ' I ~ '" ,. I • j..--' -I,.. 1 'Awrmnn SECONDr\RY STANMRD METRE BAR FlQURE·Z • ['WT n-~ 3(i)] 331

(d) the material of the metre bar,

(e) the words, figures and letter "STANDARDAT 20°CH,

(f) the year of manufacture,

(9) the mark of verification on the plate of the carrying case of the metre bar. B. Protective 6nd carrying case

(a) The metre bar shall be housed In a case made from suitable material and provided with a handle, lined internally with velvet, a plastic material or any other material, and in such a way that the measure Is not likely to be damaged~ particularly by shocks or corrosion.

(b) The case shall have affixed on It a plate bearing the inscription "SECONDARY STANDARD METRE BAR" and the identiflcatlon number.

Note: The existing secondary standard metre bars may differ In minor detaiis in regard to setting lines and inscriptions, etc. PARTID"-SECO".DARY STANDARD CAPACITY MEASURES J. Denominations Litre series (1) Millilitre series (ml) 5 2 1 sao 200 100 50 20 .

Note: 1 litre = 1 dml - 0.001 mli 1ml= 1em'

2.Materlal Secondary standard capadtv measures shall be cast out of admiralty bronze of the same composition as is employed In the case of secondary standard weight.

3. Shape

(a) The secondary standard capacity measure of five litre shall be cylindrical and have its inside diameter equal to the height cif the measure. This shall have two handles attached securely to its sides.

(b) The measure of 2 I and below shall be of the same shape as above but shall not have any handles.

(d)' Each secondary standard capacity measure shall be provided with a specially selected striking glass on the measures and glasses shaII be securely packed in velvet lined teakwood boxes.

4. Maximum permissible errt1r Denomination . PermissIble error +ml 51 21 11 SOOml 200ml 100 ml SOml 20ml 2 1

0.8

0.5

0.4

0.3

0.2 ·0.1 . 5. Protective and canylng CIISes These capacity measures stlall be stored in their boxesmade from teakwood or any other suitable non corrosivematerial with proper housing linedwith velvet, charnels leather or soft plastk material. Wood used In such boxes shalf be reasonably free from resins and volatile materials. Glue may not be used for fixing velvet or such other materials. Eachcapacity measure shall be housed in such a manner so as to avoid their excessive movement during transit. Eachstriking glass of the capacity measure shall besecurely housed in proper grooves so as to protect them from breakage during transit.

6. Inscriptions The boxes containing these capacity measures shall have the following inscrlptlons:-

(a) the Inscription SECONDARY STANDARD CAPACITY MEASURES;

(b) the Identification number of secondary standard capacity measures;

(d) the year of manufacture;

(e) the mark of verification of proper verification authority. THIRDSOIEDULE DENOMINAnONS, MATERIAL,SHAPE AND PERMlSSIBLEERRORSIN RESPECr OFWORICING STANDARDS [See Rule 5] PARTI- WORKINGSTANDARDWEIGHlS J. Denominations Kilogram series Gramser/es Milfigram series

(1) (2) (3) 20 500 SOO 10 200 200 10 200 200 5 100 100 2 50 50 2 20 20 1 10 10 332

(2) (3) THE GAZETTE OF INDIA: EXTRAORDINARY (PARTI1-SEC. 3(i)] '(2) 5 2 2 1

2. Material

(a) Weights,of 20' kg to 1 g shall be cast from admiralty bronze:(88 Cu, 10 Sn, 2 Zn) or madejrom cupro-rilckel (75 Cu, 25 Ni) or nickel .chrormum alloy (80 NI, 20 Cr) or austenltlc:stalnless .steel (25 NI, 20 Cr) or (20 NI,:25 Cr). .

(b) Weights Of:SOO:mgto100mg shall bemade from admiralty ·bronze (rolled) (88 Cu, 10 Zn, :2 Sn) sheets or from the sheets of nickel chromium :alloy (80 Ni 20 Cr) or austenitic stainless steel (25 Ni, 20 Cr) or (20 Ni, 25 Cr).

(c) Weigt'ds 0(50 mg to 1 mg shall be made of alumlnfum sheets. Copper, silicon and iron contained as impurities in the aluminium shall not exceed 0.3 per cent in the aggregate.

3. Shapeand finish

(a) Weights of 2.0 kg and 10 kg shall be cylindrical In shape and shall be cast in two parts, the top part being screwed snugly Into the bottom part. The top part shall be cast in the form of a handle for lifting purposes. The two parts after assembly shall be locked by means of a set screw over which the seal of the verifying authority shall be affixed.

(b) Weights of 5 kg to 200 gm (inclusive) shall be cast In two parts, the top part being screwed snugly into the bottom part. The top part shall be cast in the form of a knob for lifting purposes. The two parts, after assembly, shall be locked by means of a set screw, over which the seal of the verifying authority shall be affixed.

(d) Weights of 5 g to 1 g (inclusive) shall be integral weights with knob.

(e) Weights of 500 mg to 1 mg (inclusive) shaH be of square shape with the one of the sides bent at right angles to the flat surface for ease of handling.

(f) The denominations shall bemarked on the weights. 5 2 2 1

(g) The entire surface of the weights, including their base and corners shall be free from roughness. The surface of the weights, when inspected visually, shall not show any porosity and shall have a mirror polish appearance.

4. MaxImum permissible error The permissible errors in excessand in deficiency shall be as follows:- DenomInation PennisSibleerror:t mg 20 kg 300 10 kg 150 . 5 kg 75 2kg 30 1kg 15 500g 7.5 2009 3.0 100g 1.5 . 50g 1.0 20g 0.8 109 0.6 59 0.6 2g 0.4 19 0.3 500mg 0.25 200mg 0.20 loomg 0.1S SOmg 0.12 20mg 0.10 10mg 0.08 Smg 0.06 2mg 0.06 1mg 0.06

5. PrtJ.tectJveand carrying case

(a) These weights shall be stored in their boxes made from teakwood or any other suitable non-corrosive material with proper housing linedwith chemically neutral velvet, chamois leather or soft plastic material. Wood used in such boxes shall be reasonably free from resins and volatile materials. Glue shall not be used for fixing velvet or such other material. The weights shall be housed in sucha manner soas to avoid their movement during transit.

(b) Eachmilligram weight shall be provided with a separate housing. A covering glass or a sheet of any other transparent, non-reactive [trPT II-~ 3(i)] 333 and non-corrosivematerial shall be provided so as to ensure that these weights are not dislocated during transit.

(c) A suitable device for lifti'19 the kilogram and gram weights, coveredwith chamois leather or other sUltaqiematerial, shall be provided. A pair of forceps capable of lifting easily milligram weights shall also be provided.

6. Inscription The boxes containing the weights shall have the following inscriptions :-

(a) the words 'WORKING STANDARD WEIGHTS~

(b) the identification number of the working standard weights,

(d) the year of manufacture,

(e) the marks of verification. PARTU-WO~NG STANDARDMETREBAR

1. Material , The working standard metre bar (hereinafter I called metre bar) shall be manufactured from 58 per I cent nickel-steel, or austenitic stainless steel, or I stainless steel with 13 per cent chromium or pure I nickel (minimum purity 99 per cent). I

2. Shape and dimensions '\

(a) The metre bar shall have a rectangular cross section of minimum dimensions 20 mm x 10 mm. The existing cross-section with dimensions 30 mm x 15 mm shall be preferred.

(b) The overall length of the metre bar shall be 1030± 1mm and the graduated length shall be 1010 mm.

3. Finish The graduated surface shall be bright, nicely polished and free from surface irregularities In the neighbourhood of the graduation marks.

4. Graduations

(a) The metre bar shall be graduated in millimetre throughout from 0 to 1000 mm on the wider upper surface.

(b) 'A length of 10mm before the zerograduation mark shall also be graduated In mlilimetres.

(c) The scale shall be regular. The thickness of the graduation marks shall be uniform and , shall lie between 30 and 80 mkrornetres,

(d) The width of the graduation marks shall be uniform to within ± fifteen per cent of the average width of all the marks.

(e) The graduation marks representing centimetres shall be longer than those representing half centimetres and the graduation marks representing half centimetres shall be longer than those representing miJlimetres.

(f) Each graduation mark shall be straight to within ten mkrometres over its length.

(g) The graduation marks shall be parallel to one atQther to within ten mlcrometres.

(h) The length of the graduation marks shall be not less than-- 3mm for mm marks. 5 mm for half em marks. 8mm for an marks. (I) The centimetres graduation marks shall be numbered in the Increasing order of numeration.

(j) The height of the numerals and the letters (symbols) shall be approximately 3mm.

(k) The graduation marks shall be square to the scale axis to within 30 minutes of arc. S. Cursor

(a) The errors on ij,'e length measure under 'verification shall be determined by means of a scale marked on a plate, made from transparent material, whlchis carried by II cursor capable of moving along the length of the metre bar. The plate shall have appropriate and constant dimensions and thickness.

(b) The scale on the plate shall : (I) either be a length of 9 mm divided into 10 parts thus forming a Vernier scaleto read the errors to the nearest of 0.1 mm; or (II) one millimetre divided into 10 parts for reading the errors directly to the nearest of 0.1 mm.

(d) The graduation marks on the scale shall be Inscribed on the surface facing the graduation marks on the metre bar.

(e) The readings shall be taken by means of a magnifying glass, the magnification of which shall be not less than 5X if the scale Is graduated in 0.1 mm and not lessthan 3X If the scale is of Vernie~ type. 334 THE GAZETTE OF INDIA: EXTRAORDINARY [PART II-Soc. 3(i)]

(f) The cursor shall 'be such that ft would be possible to move it smoothly without jerks, along a straight line from one end of the measure.to the other.

(g) A mechanism to raise, ·Iower and laterally move the measure under verification, within a view to putting its graduated surface at a proper level and aligning its zero mark with that of thernetre bar shall be provided.

(h) For faCilitating the verification of end measures, two vertical stops bearing retereneeunes shall be provided. The first stop shallbe such that its reference line can be aligned with the zero mark of themetre bar. The second stop shall be capable of moving along the entire length of the metre bar.

6. Maximum pennlsslble errors

(a) The error on the length between any two graduation marks on the working standard lengthmeasure, at the standard temperature of 20°C, shall not exceed the value "e" calculated according to the following fonnula: e = (50+L/20) micrometres where L is the nominal length Inmllllmetres of that part of the metre bar between the two graduation marks, the error on which is being determined. The calculated value of "e"shall be rounded to the nearest Integer.

(b) The errors on the length between any two graduation lines on the plate shall not exceed ± 20 micrometres.

7. Insaiption The metre bar shall bear the following Insaiption:

(a) the words "WORKING STANDARDMETRE BAR~

(b) identification number of the metre bar,

(d) the material of the metre bar,

(e) the words, figures and letter "STANDARDAT 20°C",

(f) the year of manufacture.

8. Protective and carrying case

(a) The standard metre bar shall be housed in a case made from suitable material and provided with a handle, lined Internally with velvet, a plastlc material or any other material and In such a way that the metre bar is not likely to be damaged, particularly by shocks or corrosion.

(b) The case shall have affixed on It a plate bearing the Inscription "WORKING STANDARD METRE BAR" and the Identification number.

Note : The existing working standard length measure (metre bars) may differ in minor details in regard to Inscriptions, etc. on it. PARTW-WORKING STANDARD CAPACITY MEASURES

1.·Denomination LItre series (I) Millilitre series (ml) 10 5 2 1 500 200 100 50 20

2. Material Working standard capacity measures shall be pressed out of oxygen free, deoxidized annealed copper sheets of deep drawing quality.

3. Shape

(a) Working standard capacity measure of 10 IItres shall becylind_ricaland have Its Inside diameter approximately equal to the height of the measure. this shall have two handles attached securely to its sides.

(b) Working standard capacity measures of 511tresand below shall be of the same shape as above but shall not have any handles.

(c) The outside of the body of the working standard capacity measuresshallbe oxidIZed to give a smooth dull black surface and the InsIde shall be tinned.

(d) The denominations of the working standard measures shall be engraved on the outside surface.

(e) Each working standard capacity measure shall be provided with spedally selected striking glass and the measures and glasses shall be securely packed in velvet lined teakwood boxes.

4. Maximum permissible error Denomination PermiSSibleerror in ml.:t.ml 10lltres 8 511tres 4 . 211tres 2 1 litre 1.5 . 500 ml 1.0 200ml 0.8 100 ml 0.6 SO ml 0.4 20ml 0.2. ['WT II-~ 3(i)]

5. Pipette measures Pipettesof the following description may also be used as working standard measures:

(a) One mark pipettes of capacities 10ml and 5 mi.

(b) Graduated pipettes of capacities 5 ml gradua~edat every tenth of mi.

6. Delivery time and maximum permissible errors of pipette measures Den0n:tination Delivery time ml In seconds Minimum Maximum Permissible error ( + ml) 10 5 5 (Graduated) 25 20 40

0.04

0.03

0.05 15 10 10

7. Protective and carrying cases These capacity measures shall be stored in their boxesmade from teakwood or any other suitable non corrosivematerial with proper housing lined with velvet, chamois leather or soft plastic material. Wood used in such boxes shall be reasonably free from resins and volatile materials. Glue may not be used for fixing velvet or such other materials. Eachcapacity measure shall be housed in such a manner soas to avoid their excessivemovement during transit. Eachstriking glass of the capadty measure shall be securely housed In proper grooves so asto protect them from breakage during transit.

8. InSCriptions The boxes containing these capacity measures shall have the following inscriptions: . .(a) the words "WORKING STANDARD CAPACfTY MEASIJ~ES/~

(b) the ldentlfkation number of the capacity measures,

(d) the year of manufacture,

(e) the mark(s) of verification of proper verification authority: FOURllI SCHEDULE SPECFICATIONS FOR STANDARD EQUIPMENT [See Rules 7, 8 and 9] PARTI-REFERENCE STANDARD BALANCES

1. Every reference standard balance shall be of such robust construction and have such metrological qualities so as to ensure the continued good performance, as indicated In paragraph 2.

2. Sensitivity figure/readability and precision of measurement of every reference standard balance shall be such as to give overall precision of measurement of 1part in one nillllon for weights from 10 kg to 10 9 and ± 0.01 mg for weights from 5g to 1mg. PARTII-5ECONDARVSTANDARDBAlANCES

1. Every secondary standard balance shall conform as regards capacity, sensitivity figure in mg per division, minimum scale division, variation In sensitivity figure with respect to load and overall accuracy of measurement, to the spedfications as indicated below: capaCItY senSitiVItYfigure Min. scalediVISion Maximum vanaton Minimum overall mg/dlv. Insensitivity figure accuracy of with respect to load measurement 1 2 3 4 5 20 kg 25 l.Smm 10 percent 25 mg In 10 kg Skg 7.5 1.0mm 10 percent 7.5 mg In 2 kg 1kg 1.S 1.0mm 10 percent 1.5 mg in 500 g 200g 0.5 1.0mm 10 percent 0.5 mg in 50g 20g 0.1 1.0mm 10 percent 0.01 mg in 1mg 2g 0.02 0.75 mm 10 percent 0.02 mg in 1 mg

2.. the standard deviation of the 10 consecutive rest points for every secondary standard balanceshall not be more than one scale division. 335 [PART II-Soc. 3(i)]336 THE .GAZETTE OF INDIA: EXTRAORDINARY interval as given below:-3. Theideviation'ln arm ratio from uriity, for every secondary standard equl-arm balance shellnot be more than-a fractlon.equal .to sensitivity figure divided by full load.(both beil19taken'in the same unit).

4. The variation in time iperiods at different loads for every secondar;ystandard balance shall not be more than 20 per.cent.

5. Every~secondary·standard 'balance shall be provided with' a:device so that the contact between the knife-edges antj(thelr.respective planes is broken when the balence'lsdn ar.rested position.

6 .. The -secondery standard balance shall, ordinarily, be used.for indoor war!<in laboratories.

7. Every secondary standard balance of digital type shall conform 'as regards value of verification scale capacity Maximum value Type of weights of verification to be verified scale interval 20 kg 1mg 20 kg to 500 g 200 g 0,01 mg 200 g to 1 mg PARTm- WORKINGSTANDARD BALANCES

1. Working standard balances may be of the following two types:-

(a) Equi-arm types balances;

(b) Digital type balances.

2. Every working standard balance of equi-arm type shall conform, as regards capacity, sensitivity figure, maximum variation In sensitivity figure with respect to load and maximum overall inaccuracy of measurement to the Specification as Indicated below- Capacity Max. Sensitivity Maximum variation Minimum overall 6CCUracy of figure/division in sensitivity figure measurement 50 kg 100 mg 20 per cent 100 mg in 10 kg 5 kg 10 mg 20 per cent . 10 mg in 500 9 200g 1 mg 20 per cent 1 mg in 100 g 50 9 0.4 mg 20 per cent 0.4 mg in 5 9 2g 0.05 mg 20 per cent 0.05 mg in 1 mg

2.1 The standard deviation of ten consecutive rest points for e-Iery working standard balance shall not be more than one scale division.

2.2 The deviation In arm ratio from unity, for every working standard equi-arm balance shall not be more than the fraction equal to sensitivity figure divided by the full load (both being taken in the same unit).

3. Every working standard digital type balance shall conform, as regards value of verification scale Interval as given below:- capacity Max. value of Type of weights verification scale to be verified interval 50 kg 20 kg 19

0.1 g Non-bullion : 50 kg and 20 kg Bullion : 10 kg, 5 kg; Non-bullion : 20 kg t02kg Bullion: 2 kg to 500g; Non-bullion: 2 kg to 2009 Bullion ; 200 g and below; Non-bullion : 200 g and below 2kg 10mg 200g O.lmg

4. The standard deviation of the 10consecutive rest points for every working standard balance shall not be more than one scale division.

5. The deviation in arm ratio from unity, for e-Iery wor!<lngstendard equi-arm balance shall not be more than a fraction equal to sensitivity figure divided by full load (both being taken in the same unit).

6. The variation in time periods at different load for every working standard balance shall not be more than 20 per cent.

7. Every indoor type working standard balance shall be provided with a device so that the contact between the knife-edges and their respective planes is broken when the balance is in arrested position.

Note: For verification of bullion or carat weights, only Indoor type working standard balances shall be used. FIfTH SCHEDULE [See Rule 11)

PART-I Weights (Other than Carat Weights) General This Part deals with the following categories of weights:- aCrw.~ :1·-·3f?ff+---~~,....· --1" •••~ .• -""-.~ .• ._- .------ _.-..~,.------- -- ..--- [qr7J II-~ 3(i)] 337 (A) Iron weights, parallelopiped (50 kg to 5 kg) ,(6) Cylindrical knob type weights (10 kg to 19) (C) Iron weights, hexagonal (50 kg to 50 g) (D) Bullion weights (10kg to 1 g) and (E) Sheet metal weights (SOD mg to 1 mg) A.-IRON WEIGHTS PARALLELOPIPED (50 kg to 5 kg)

1. Denominations Parallelopiped Iron weights shall have the following denominatlons:- Kilogram series: 50,20,10 and S.

2. Shape

(a) The weights shall be integral and in the form of parallelopiped rectangles with corners rounded off and having a rigid handle for . ease of handling.

(b) The shapesshall be as shown either In FlQure 3 or In Figure 4.

3. Material

(a) Body: The body shall be made or manufactured from grey cast Iron.

(b) Handles: Handles shall be made or manufactured from the following materials:

(i) Type 1 weights-Steel tube without soldering

(ii) TYpe2 weights-Cast along with the body

(c) Method of manufacture: The weights shall be made or manufactured by means of any suItable foundry and moulding process.

4. Loading holes

(a) The weights shall be provided with loading holes of either Type 1 or Type 2 indicated below: Type Jloading hole

(i) The loadIng hole shall be located within the tube which forms the handle (See Figure 3).

(ii) The loading hole shall be closed either with a screwed brass plug or a brass TABLE 1 disc. The screwed brass plug shall be provided with a screw driver slot and the brass disc shall have a central hole to facilitate lifting.

(iii) The plug or a disc shall be sealed by means of a lead pellet pressed firmly Into an internal drcular slot or in the .threaded part of the tube. TYpe2 loading hole (I) The loading hole shall be cast in one of the upper surfaces of the weights and shall open out. on the upper surface (See Figure 4). (II) This loading hole shall be dosed by a plate cut from mild steel. (III) The mild steel plate shall be closed by a lead pellet pressed firmly into the conical hole.

(b) In case of new weights, about two-thlrd of the depth of the loading hole shall remain empty after adjustment.

5. Markings

(a) The denomination of the weight and the marker'S or manufacturer's name or trade marX shallbe indicated Indelibly in the sunken form or in relief, on the upper surface of the central portion of the weight. (See Figure 3 and Figure 4.)

(b) The denomination of the weight shall be Indicated in the International form of Indian numerals in an indelible manner with the symbols as illustrated below: . .~ or fcnm 5 kg Note: The abbreviation ~ or fcfim, may be indicated In the regional script.

6. Dimensions

(a) The dimensions of the two types of weight shall be as specified in Tables 1 and 2.

(b) The tolerances on dimensions shall be ±5 percent. Parallelop/ped Weights Dimensions for 7J'pe1Weights (In millimetres) Denomination A A' 8 8' H C 0 E F GIG' 5kg 150 152 75 n 84 36 30 6 66 12/20 10 kg 190 193 95 97 109 46 38 8 84 12/20 20 kg 230 234 115 117 139 61 52 12 109 24{32 50 kg 310 314 155 157 19i 83 74 16 152 24/32 it 7 it C. () " -85 338 THE GAZETTE OF INDIA: EXTRAORDINARY [PARTII-SEC. 3(i)] Denomination I ] K T L N 0 U V W p 5kg 145 5 12 M16 x 1.5 14 1 2 16.5 18 16 5 10kg 185 6 16 M16 x 1.5 14 . 1 2 16.5 18 16 5 20 kg 220 8 20 M27 x 1.5 21 2 3 27.5 30 27 8 SOkg 300 10 25 M27 x i.s 21 2 3 27.5 30 27 8 Sides A and A\ as also Band B\ may be Inversed. TABLE 2 Para/lelopiped Weights Dimensions for TYpe2Weights. (In millimetreSj Denomination A A' S 8' H C D E ·F G ] K M N P 5kg 150 152 75 77 84 36 30 6 66 19 5 12 16 13 55 10kg ·190 193 95 97 109 46 38 8 84 25 6 16 35 25 70 20 kg 230 234 115 117 139 61 52 12 109 29 8 20 50 30 95 SOkg 310 314 155 157 192 83 74 16 152 40 10 25 70 40 148 Sides A and A' also Band B' may be Inversed. STOPPU VAIUf:TY I UADI~ PELLI:.T r--i -; +-·w .... ~.... _ ••• _ ........ _ ... - .... - ll'.......Lt1Itt • ~ANtJFACTUUIU NAM!!0. ADEMAIUt x-_· ... IL.__ ..J ~Ihf '"PARALLELPIPED WEIGHT TYPE 1 Rgure3 , 339

7. Finish t=q~-c-,.--A.' '~.~. T'Pl , .~.. 0I ;.. 1 ! SOlD'"I i .oil 1 !. ! L._..I J 1---- A. -----11 -. LRaUnded Corners Manufacturer's Name or Trade Mark .---1".---_.. C vi fmkg ParallelapipedWeight Type 2 Figure 4 B.--CVUNDRICAL KNOBTYPEWEIGHTS (10 kg to Ig)

1.DenomInations Cylindrical weights shall have the following denominations: Gramseries:500, 200, 100,50,20, 10,5,2 and 1 Kilogram series: 10, 5, 2 and 1

2. Shllpe

(a) The weights shall be integral and cylindrical In shapeand provided with a flattened knob for ease of handling.

(b) Theshapes shall be as shown in Figure (5).

3. Materilll The weights shall bemadeor manufactured from brass, gun metal or bronze; grey cast iron may also be used for weights from 10 kg to 200 g but grey cast iron weights shall not be used for weighment of goldt silver, precious metals or their products.

4. Method of manufacture The weights shall be made or manufactured by any suitable method as may be applicable to the selected material.

5. Loading hole

(a) Weights of denominations 10 9 to 1 9 both tnduslve, shall be solid, integral weights without a loading hole. The weights shall be finished smooth and be free from dross, pitst blow-holes and other defects. They shall be protected against corrosion byapplying an appropriate coating which is resistant to normal usage and wear and tear.

8. Permissible error The maximum permissible errors shall be as specified below: Denomination Permissible error Verification Inspection

(mg) (mg) 7500 ±7S00 3000 ±3000 1500 ± 1500 750 ±750 50 kg 20 kg 10 kg 5k9

9. Stamping The Legal Metrology Officer's seals shall be stamped on the lead pellet within the loading hole. (See Figure 3 & Figure 4). --------------- ---_. --------~.------------------------ 340 THE GAZETTE OF INDIA: EXTRAORDINARY [PARTn-SF.c. 3(i»)

(b) Weights of denominations'10'kgto 20 9both inclusive, shall be provided with a loading hole.

(c) The loading hole shaltbecylindrical and shall pass through the axis ,of the weight open out on the upper surface of the knob and have wider diameter at its upper end as shown In Figure 5.

(d) The loading .hole shall be dosed either by . means of a'threaded brass plug or a flat brass disc. (See 'figure 5).

Note: Thethread used shaUbe that commonly known as 'ISO Metric'. (I) 'The threaded plug shall have a slot for adjusting it by means of a screw driver. (Ii) The nat disc. shall be provided with a suitable hole in the centre to fadlitate handling.

(e) The plug or the flat disc shall be closed by means a lead pellet pressed firmly Into the drculargroove In the wider part of the loading hole.

(f) 'Weights without a loading hole shall be adjusted by machining or grinding.

(9) Weights with loading hole shall be adjusted with heavy metallic materials such as lead shots.

(h) In the caseof new weights about two-thirds of the depth of the loading hole shall remain empty after adjustment. TABLE 3

6. Marking

(a) The denomination of the weight and the, maker'S or manufacturer's name or trade mark shall be indicated indelibly, in the sunken form or in relief, on the flat knob. (See Figure 5).

(b) The denominatiOnof weights of 10kilograms to 500 grams may also be indicated on the cylindrical body of theweight, provided that the numerals and letters of the symbol shall be larger than those usedfor indicating them on the knob.

(c) The denomination of the weight shall be Indicated In the international form of Indian numerals in an indelible manner with the symbols as illustrated below : ~or~5kg ID or ID11' 100 9 Note: The abbreviation~, mr, lIT or 'llT'I' may be Indicated in the regional script.

7. Dimensions

(a) The dimensions of cylindrical weights shall be as specified in Tables 3 and 4.

(b) The tolerances on dlmenslons shall be : (I) for weights 1 kg. and below ± 10 per cent; (II) for weights above 1 kg± 5 per cent. Cylindrical Knob 7Jt~ Weights-Dimenslon for Weights in mm. Denomination U V' W H Y R } K 10 kg 100 90 58 According 17 15 3 10 5 kg 80 72 46 to 13 12 2 10· 2 kg 60 54 36 . material 10 9 2 5 1 kg 48 43 27 8 7 2 5 500 9 38 '34 22 6 5.5 1.5 3.2 200 g 28 25 16 4.5 4 1.5 3.2 1009 22 20 13 4 3.5 1 '2 50 g 18 16 10 3 2.5 1 2 20 g 13 11.5 7.5 2 1.8 0.5 1.5 10 g 10 9 6 1.6 1.5 0.5 1 Without 59 8 7 4.5 1.4 1.25 0.5 1 loading 29 6 5.5 3 1 0.9 0.5 1 hole 1'9 " 6 5.5 3 1 0.9 0.5 1 .. - _ .._-- _' .. -- ('I:fTIT II-~ 3(i)] qmrifiT~:~ 341 TABLE4 Cylindrical Knob Type Weights-Oimension for Loading Hole ~nety I and U Inmm. Denominations A B C D E F G L T I M N P 5 20 9 3 18 .5.5 2.5 6.5 1.5 1 9 M4 x 0.5 5 1 5 5 1 50 g 4.5 25 7.5 3.5 9 2 1 10 M6 x 0.5 5 1.S 7 7 1.5 100 9 4.5 30 7.5 3.5 9 2 1 10 M6 x 0.5 5 1.5 7 7 1.5 200 9 7 40 10:5 4.5 12 2.5 1.5 15 M8x 1 8 2 10 10 2 500 9 7 50 10.5 4.5 12 2.5 1.5 15 M8x 1 8 2 10 10 2 1 kg 12 65 IS.5 7 20 4 2.5. 20 M14 x 1.5 13 3 18 18 3 2 kg 12 80 18.5 7 20 4 2.S 20 M14 x 1.5 13 3 18 18 3 5 kg 18 120 24.5 8 26.5 4 2.5 3S M20 x 1.5 18 4 24 24 3 10 kg 18 160 24.5 8 26.5 4 2.S 35 M20 x 1.5 18 4 24 24 3 . Lo.ADVIG HCLE ~tO.e IlIUUETYI . ·1 'II I . _1InY2 ( )_"1 n'\ III! r.",. ! ./ ~ t 'J ...... :z:~--, i;r- WD~~. .,. ~ ~ u -~... ~ I I IIAASI' J I. ( ~ 1 :~ ) T ~ ~ .~ .. k':- i IL--..'",-," • I· CYlINDRICAL. KNOB TYPE WEIGHTS FlGURE-S 342 ,THE 'GAzETTE OF INDIA: EXTRAORDINARY . [PARTII-SEC. 3(i))

8. Finish The weights shall be polished smooth. They may be protected against;corrosion by applying an appropriate coatlng.which:is resistant to normal usage and wear-and tear.

9. Permissible error The maximum permissible ·errors shall be as speclfied below : DenominatiOn Penniss7fJleerror" YerifiCiJtion Inspection .(mg) (mg) 1500 ± 1500 750 ± 750 300 ± 300 150 ± 150 75 ± 75 30 ±30 15 ± 15 10 ± 10 8 ±8 6 ±6 5 ±5. 4 ±4 3 ±3 ·10 kg 5 kg 2 kg 1kg 500 9 200 g 100 9 50 g 20 9 10 9 5g 2g 1 9 ~o.Stamping

(a) The legal Metrology Officer's seals shall be stamped on the load pellet within the loading hole, where loading hole is provided.

(b) The Legal Metrology Officer's seals shall be stamped on the bottom of weights which have no loading hole. C.-IRON WEIGHTS, HEXAGONAL (SO kg to 50 g) ~. Denominations Hexagonal Iron weights shall have the following denominations : Gram series : 500, 200, 100 and SO. Kilogram series: 50, 20, 10, 5, 2 and 1.

2. Shape

(a) Theweights shall be integral and hexagonal. The shape shall be.as shown In Figures 6 and 6A~

(b) The weights of denominations of 50 kg and down to and Indudlng 5 kg shall be provided with cast-In handles made of mild steel.

3. Material The weights shall bemade or manufactUred from grey cast Iron.

4. Method of manufacture The weights shall be made or manufactured by means of any suitable foundry and moulding process.

5. Loading hole The weights must have a loading hole fonned at the foundry

(a) For weights in Figure 6, this hole must be In the shape ot a right circular cone located ,axially and opening into the bottom face of the weight with its smaller diameter.

(b) For weights in Figure 6A, this hole must be In the shape of a frustum of a pyramid with rectangular base and opening into the bottom face of the weight with its smaller end.

6. Marking

(a) The denomination of the weights and the· maker's or manufacturer's name or trade mark shall be indicated Indelibly in the sunken fort" or in relief, on the upper surface of the central portion of the weight (See Figure 6).

(b) The denomination of the weight shall be . Indicated In the international form of Indian numerals in indelible manner with the symbols as illustrated below (See Figure 6). ~orM2k9 l%T or mq 200 g Note: The abbreviation ~,A;m, l%T or W1 may be Indicated in the regional script.

7. Dimensions

(a) The dimensions shall be as specified In Tables 5 and SA.

(b) The tolerances on dimensions shall be: (I) for weights 1 kg and below ±10 per cent (iI) For y.'eights above 1 kg ± 5 per cent. ----- --------------,----- ['IT'f Il-~ 3(i)] ~CfiT~:~ 343 TABLES Dimensions for cast Iron or Forged Mild SteelS Weights (All dimensions Inmlllimetres) Denomination A 8 C D H P Q R S T 2kg_ 94 101 78 41 10 34 30 9 18 4 lkg 73 79 62 34 8 32 28 8 16 4 500g 57 62 47 27 6 23 20 6 13 3 200g 42 48 38 21 6 22 20 -4 9 3 1009 33 38 31 17 5 18 16 ·3 7 2.5 50g 27 31 24 U' 3 16 14 3 5 2 TABL£5A Dimensions of CastIron Weights with Cast-in Handles (Dimensions in mm) Denomination A 8 C D E G P Q R S T 50 kg 236 253 134 170 100 27 58 48 24 102 32 20 kg 188 200 112 113 90 21 44 38 19 66 22 10 kg 152 161 92 88 74 18 36 30 15 54 19 5kg 125 132 7S 65 62 15 29 25 12 40 16

8. Finish The weight shall be finished smooth and be free from pits, blow-holes and other defects. They shall be protected against corrosion by applying an appropriate coating which is resistant to normal usage of wear and tear.

9. Permissible elTC)r The maximum permissible errors shall be as specified below: Denomination Pennlsslble en-or Verification Inspection

(mg) (mg) 7500 ±7500 3000 ±3000 1500 ±1500 750 ±750 300 ±300 150 ±150 75 ±7S 30 ±30 15 ±15 10 ±10 so kg 20 kg 10 kg 5 kg 2 kg 1kg 500g 200g ~OOg 50g

10. Stamping The Legal Metrology Offlcer's seals shall be _stamped on the lead pellet within the loading hole - (See Figure 6). CASTIRot! Ql ~<l"'OEOWILDSTf.EL . WII.IW-c •• "' .... FIG·6 D.-8UWON WEIGHTS(10 kg to 1g)

1. Denominations Bullion weights shall have the following . denominations: Gram series: 500,200, 100, 50, 20, 10, 5, 2 and 1. Kilogram series: 10, 5, 2 and 1. - -I. ~_ ~ » __ 344 ':THE· GAlBToTE OF 'INDIA: EXTRAORDINARY - [PARTII-SEC. 3(i)]

2. Shape Bullion w~jghts shall be.ofthe followil"!g ·.two types :

(i) CyIlndrical:knobtypes-<yli ndricaIknob type . weights.of denomination 10 kg to 1 g,'both inclusive, shall beotthe shapeesspecified in pa~graph:B=2_of.this·Part(Seealso Rgure 5) but.shall bear .indications, spedfied in parag~ph 6 to Indicate·thaHhey are bullfon weights.

(ii) Flat ~lindrlcal type--;F1at CYlindrical type weights of,denominations 1 kg to 1 9 both Induslv~,:shall.be ·f1at cylindrical In shape, without a:knob·and·shaUnest with eachother (See F.lgure·,7).

3. Material Weights shell be rnade or manufactured from brass, gun meta!,'bronze or the like.

4. Method ofmanufacture Weights shall 'be either cast, pressed or turned from rods, or :made or manufactured by any other suitable method.as may beapplicable to the selected material.

5. Loading holes

(a) Weightsof denominations 10kg to 20 g, both inclusive, made or manufactured according to requirements specified in paragraph 11 of thIs Part, shall have loading holes of the type specified for them.

(b) Weights of denominations 10 g to 1g, both inclusive of either type shall be solid Integral weights without a loading hole.

(c) Flat cylindrIcal weights from 1 kg to 20 g both Inclusive, shall have loading holes, in the shape of a right circular frustum of a cone located axially and opening Into the TABLE6 bottom face of the weight with its smaller diameter (See Figure 7).

(d) In the case of new weights about two-thirds of the depth of the loading hole shall remaIn empty after adjustment.

6. Markings

(a) The denominations and other marking on cylindrical knob type weights shall be as specified in paragraph 15 of this Part.

(b) Cylindrical knob type weights of denomination 100g to 19, both inclusive, shall be marked on the bodywith a 'diamond' and those of denominations 10 kg to 200g, both inclusive, shall be marked on the knob with the words 'Bullion' and (~) within a 'diamond'.

(c) The denominations of flat cylindrical weights and the maker's or manufacturer's name or trade mark shall be Indicated indelibly, in the sunken form or In relief, on the upper surface of the central portion of the weights (See Figure 7). .

(d) Flat cylindrical weights of denominations 10 g to 1 g, both indusive, shall be marked with only a 'diamond' and those of denominations 1 kg to 20 g, both inclusive, shall be marked with the words 'Bullion' and (~) within a 'diamond'. .

(e) The denomination of the weight shall be Indicated in the international form of Indian numerals in an indelible manner with the symbols as illustrated below (See Agure 7): ~or~2kg m or '!fI11 10 g DIMENSIONS FOR FLATCYllNDRICAL BULLlON WEIGHTS (All dimensions in millimetres) Denomination A 8 C D E F G 1 kg 80 61.5 20 23 4,0 12 26.6 500g 61 48.5 16 19 2.5 10 22.5 200g 48 37.5 14 16 2.0 7 14.8 100g 37 28.5 12 14 2.0 6 12.7 50g 28 21.5 10 11 1.5 3 11.0 209 21 16.5 9 10. 1.5 3 8.4 109 16 12.5 ** ** 1.5 ** 6.9 5g 12 9.5 ** ** 1.0 ** 5.9 2g 9 7.0 ** ** 1.0 ** 4.4 19 6.5 ** ** ** ** ** 3.6 -r .. ·,..1'!"f·",......'~MMf;'''['It·..···__.,~. , , I___ -L _ , ,.. ,- •.~__..__..__ .n' ~ ~ ....---flt...,T">,....t- .,.·-t .,.., - _" ----------- '. ,to, ,0 • qffiJ CfiT ~ : amT'iRUT _ 345

(1) (2) (3) 200g 10 ±10 100g 5 ±5 50g 3 ±3 20g 2.5 ±2.5 109 2.0 ±2.0 59 1.5 ± 1.5 29 1.2 ±1.2 19 1.0 ± 1.0 [q-py II-~ 3(i)] r----__A " -. r----- B " _ Flat Cylindrical Bullion Weights Figure - 7 .

Note: The abbr~viation ~, fifi!n, lIT or mll' may be indicated In the regional script.

7. Dimensions

(a) The dimensions of cylindrical knob type weights shall be as specified InThbles3 and

(b) The dimensionsc:J flat cylindricalweight shall be as specified in Table 6.

(i) for weights 1 kg and below ± 10 per cent.

(ii) for weights above 1kg± 5 per cent.

8. Finish The surface of the weights shall be polished, smooth and shall not show any porosity to the naked eye.

9. Permissible error The maximum permissible errors shall be as specified below: Oenomination Permissibleerror Verification Inspection

(mg) (mg)

(1) (2) (3) 10 kg Skg 2kg 1kg 500g 500 250 100 50 25 ±500 ±250 ±100 ±50 ±25 , 10. stamping

(a) The Legal Metrology Officer's sealsshall be stamped on the lead pellet within the loading hole, where loading hole is provided.

(b) The Legal Metrology Officer's seals shall be stamped on the bottom of weights which have no loading hole. E.-5HEET METAL WEIGHTS

1. Denominations Sheet metal weights shall have the following denomlnatlons:- Milligram series: 500, 200, 100, 50, 20, 10, 5, 2 and 1. z, Shape

(a) Bullionweights shall be drcular in shapeand shall haveoneedge bent for ease of handIing (See Figure 8).

(b) Non-bullion weights shall have the following shapes and shall have one edge bent for ease of handling (See Figure 9). Denomination(mg) Shapeafter bendingalong one of the sides 5,50,500 2,20,200 Equilateral triangle Square Regular hexagonI, 10, 100

3. Material Sheet metal weights shall be made or manufactured from brass, stainless steel, aluminium nickel-silver or cupro-nickel sheets.

4. Method of manufacture Sheet metal weights shall be made or manufacture by pressing or by any other suitable process.

5. Markings

(a) Sheet metal weights shall bear only the denomination and symbol for 'milligram' as 346 .THE GAZETTE OF INDIA: EXTRAORDINARY [PARTII-SEC. 3(i)] TABlE 7 DIMENSlONs FOR SHEET METALWEIGHTS (NON-BULUON)(Rgure 9) (All dimensIonsInmill/metres) Denomination Al A2 A3 B H

(mg) 50 14.0 2.0 3.0 200 12.0 2.0 3.0 100 12.0 2.0 2.5 50 8.0 1.5 2.5 '20 7.0 1.5 2.5 10 7.0 1.5 2.5 5 4.5 1.0 .2.0

4.0 ... 1.0 2.0

4.0 1.0 ·2.0 indicated below (See also Figure 8 and Figure 9). . (fi:!m) 500 mg Note :The abbreviation 1lmT may be Indicated In the regional script.

(b) Themaker's or manufacture's name or trade mark shall be indicated indelibly on the box containing the sheet metal weights. . (c) The box shall also bear a serial number to identify it.

6. Dimensions

(a) The dimensions of sheet metal weights shall be as specified in Tables 7 and 8.

(b) .The tolerances on dimensions shall be ± 10 per cent. TABLES DIMENSIONS FOR SHEET METALWEIGHTS (BULUON) (FIgureS) (All dimensions in millimetres) Denomination , D C H

2.0

1.5

1.0

1.0 15 13 11 9 8 7 6 5 .4

3.0

2.5

2.0

2.0 500 mg 200 mg 100 mg SO mg 20 mg ·10 mg 5 mg 2 mg 1mg

7. Finish The sheet metal weights-shall be clearly sheared and free from burrs. The stamped markings on sheet metal weights shall be legible and deep enough to ensure Indelibility but not so deep as to crack the sheet metal weights.

8. Permissible error The maximum permissible errors shall be as specified below: Denomination (mg) Maximumpennissible error Verification lnsDecfiOn Bullion(mg) Non-bullion(mg)Bullion(mg) Non-bullion(mg) 500 0.8 2.5 ±O.8 ± 2.5 200 0.6 2.0 . ± 0.6 ±2.0 100 0.5 1.5 ±O.S ± 1.5 SO 0.4 1.2 ±OA ± 1.2 20 0.3 1.0 ±0.3 ± 1.0 10 0.25 0.8 ±O.2S ±O.8 5 0.20 0.6 ±O.20 ±0.6 2 0.20 0.6 ± 0.20 ±O.6 1 0.20 0.6 + 0.20 + 0.6 -_- ---------------~---' ['1J1T II-~ 3(i)] 347

9. Stamping

(a) 'legal Metrology Officer's seals shall not be affixed on weights of 10 mg, 5 mg, 2 mg and 1 mg. These weights shall be authenticated by the Issueof a certfficate of verlfiCiltionwhich shall also mentlon the serial number on the box containing the weights.

(b) Legal Metrology Officer's seal for year alone shall be stamped on sheet metal weights of 20 mg. Figure 8 Sheet Metal Bullion Weights H-1500 ,, I I I •• 200 ......Ho-+· -500 "'.I I •I, J........_-_,.j..- f1:mT mg _. , ftmr mg Figure 9 Sheet Metal Weights -~~.--- 348 THE GAZETIE OF INDIA: EXTRAORDINARY fPARTII-SEC.3(i)]

(c) The legal Metrology·0fficer~s,seals.(namely, year, Quarter and identification) shall be stamped on sheet metal weights of denominations' 500 mg to '50 mg, both. indus[ve.

3. Knob weights

(a) Materials

(l) The weights shall be made from rolled, drawn or extruded material and shall not be cast.

(ii) The weights shall be made from brass, bronze, gun·metal, ntckel chromium alloy or non-mecnenc stainless steel.

(b) Shape and dimensions The shape and dimensions of the weights shall be as shown In Figure 10 and Table 9.

(e) Permissible error The maximum permissible errors shall be as specified below:

PART II CARAT WEIGHTS

1.General This Part deals with the requirements for carat weights intended for use in weighing pearls, diamonds and other preciOusstones.'

2. Denomination. The denominations·of carat weights shall be as given below (the gram 'and .milligram equivalents are shownagainsteachfor 'ready reference) :

(a) KNOB WEIGHTS (b) SHEET METAL WEIGHTS Denomination Equivalent carat 9 Denomination Equivalent Denomination Verification InspectIoncarat mg 2 400 C3rat mg mg 1 200 500 5.0 ±5.0

0.5 100 200 3.0 ±3.00.2 40 100 2.5 ±2.S0.1 20

0.05 10 SO 2.0 ±2.0

0.02 4 20 1.5 ± 1.5

0.01 2 10 1.2 ±1.2

0.005 1 5 1.0 ±1.0 TABLE9 NOMINAL DIMENSIONS OF KNOB CARAT WEIGKTS [Clause 3(b}] (All dimensions in millimetres) A* C** D E F G H

12.0 0.4 4.0 10.0 6.0 32.0 14.2

10.0 0.4 3.0 8.5 5.0 23.0 10.8

8.0 0.4 2.5 7.0 4.0 19.0 7.9

6.0 0.3 2.0 5.5 3.0 15.0 6.4

5.0 0.3 2.0 4.0 2.0 11.0 4.6

4.0 0.3 1.5 3.0 1.5· 9.0 3.5

3.0 0.2 1.5 2.5 1.5 7.0 2.9 500 100 100 '10 100 20 50 10 20 'I 10 2 5 . 1 Denominations carat 500 200 100 SO 20 10 5 * The cross-section of the top of theknob is elliptical for a/l weights major axis beIng twice the minor sas (therefore for a/l weights B::;:;A/4) * * This Is8 recommended dimension . . , ,- .." --.... --_..l L ---' ...------- .-._- ['WI I1-~ 3(i)] Note: With a material of density 8400 kg/m3 (exactly) the above dimensionswill give weights which possessmassesto within the required tolerance limits on the plus side (this ensures a longer life for the weights). However,as the density of the material may vary considerably as also the manufacturing techniques, a tolerance of ±10 per cent Is allowed on all obligatory dimensions (that is those other than C). Final values of massescan be adjusted by controlling the dimension H.

4. Sheet metal weights

(a) Materials-Weights of denominations 0.2 carat and below shalfbe made of aluminium sheet. Weights of higher' denomInations shalfbemade of sheets of brass, aluminium/ nickel-silver, nickel chromium alloy, bronze or cupro-nlckel.

(b) Shape and dlmensions-5heet metal weights shall be square with one edge bent for ease of handling (See Figure 11)•. They shall have dimensions given in Table 10.

(c) Permissibleerror The- maximum permissible errors shall be as spedfied below:- Denomination Carat 349 Verifialtlon Inspection mg- mg 2 3 O.S ±O.8

0.6 ±O.6

0.5 ±0.5 '0.4 ±0.4

0.3 ±O.3

0.25 ±0.2S

0.20 ±0.20

0.20 +0.20 1 2 1

0.5

0.2

0.1-

0.05

0.02

0.01

0.005 TABLE 10 Nominal dimension forsheet metal carat weights Denomlfl8t1on Size Carat mm 2 12 1 10 O.S 9

0.2 8

0.1 7

0.05 6

0.02 5

0.01 4

0.005 3 Tolerance± 10 percent Manufacturers Name or TradeName Figure 10 Knob Carat Weight H Figure 11 Sheet Metal Carat Weight 350 -tFHE<G;'&;zEITE ;OF INDIA: EXTRAORDINARY [pAItt n-sEC, 3(i)]

5. Manufacture an'd1Inlth . .

(a) The surface of 1.the 'weights shall be reasonabJy smooth. Sheet :metal weights shall be smooth!v:sheared and shall be free from burrs. .

(b) For better stablliw,and flnish, the weights . may be:nlcke!,:..Or,t:hodium:plated.

6. Marking

(a) Every welgt\t,e.xcept weights of SOcarat and lower .denommettcns, shall have the nianufacturer's name or trade marl<and the denomination Indelibly marked on It.

(b) The denomlnatlon shall consist of the International form of Indian numeral prefixed and sL:ifflxed by the letter '~' and 'c' respectively except that In the case of weights below 50 carat, only the numerals shall bemarked. The size of numerals and letters Indicating the denomination of weights shall be at least twice the size of letters Indicating the manufacturer's name or trademark. ' Note :The abbreviation '<t' may be indicated in the regional script.

(c) The marking shall be legible and deep enough to ensure indelibility over a long . period of use, but not so deep as to crack the weight itself.

7. Packing

(a) Each set of carat weights shall, In addition to the seriesof denomination speclf1eclunder 2, consist of an additional piece of weight of 2 carat and the relevant decimal multiple of two.

(b) The weIghts shall be supplied In a suitable velvet-lined box. The. small sheet metal weights shall be so housed and provided with a cover of glass or any other transparent material that they will not get dislodged from their proper places. The box shall also contain a pair of forceps for lifting the weights.

PART III STANDARD WEIGKTS FOR TESTING OF HIGH CAPAcnY WEIGHINGMACHINES

1. Scope These specifications shall apply to standard weights having a nominal value equal to or greater than 50 kg, used for testing (and adjusting, where appropriate) of high capacity weighing machines In accuracy class III(medium) and class IV (ordinary), defined In the Metrological regulations for non automatIc weIghing machines.

(a) It sets forth the technical and metrologIcal requirements to which these standard weights must conform. In particular it establishes the values of the maxImum permissible errors for standard weights and minimum densIties as functions of the maximum number of scale divisions on the machines to be verified using these weights.

2. Nominal values • The nominal value of the standard weight Is 50 kg, or of the form k x 10n kg, where k is generally .equal to 1, 2 or 5, and n is whole number equal to or greater than 2.

3. Shape I The standard weights must have a relatively simple shape, with no sharp edges or comers. They shall not have any cavities liable to cause a rapid accumulation of dirt. If they are Intended to run on a flat surface (or on rails), they must be equipped wIth roller tracks (or grooves) of limited area.

4. Basisof adjustment The standard weights must be adjusted taking the reference conditions applicable to the adjustment of standard weights as follows:

(a) standard reference density: 8000 kg/ml,

(b) ambIent air density: 1.2 kg/m3, and

(c) equilibrium in air at 200c, without correction for aIr buoyancy. -.-------.- ...--'~--;---. ------ --- [IWT1I-~ 3(i)] 351 S. Adjusting cavity The standard weights must indude one or more adjusting cavities. It must be possible to seal the closure of these cavities; the dosures must bewater· tight and airtight (e.g., bymeans of a joint). The volume of adjusting cavities must be at least equal to 5/100 of the volume of the standard weight. Furthermore, it is desirable that, after the initial adjustment, a volume of at least 1/100 of the volume of the standard weight remains empty.

6. Material Standard weights are in general made of grey cast Iron. They may be made of one or more other materials, provided the provisions of paragraph 8 are observed. The material used must be of such hardness and strength that they withstand the loadsand shocks liable to occur under normal conditions of use.

7. Surface condition The standard weights may be coated with materials suitable for providing protectIon agaInst corrosion by rendering their surface impermeable. This coating must wIthstand shocks and atmospheric conditions. Zinc-plating Is an example of a coating which meets with these specifications.

8. Metrological characteristics The maximum permissible error for the standard weights must not exceed 1/3 'of the maximum permissible error for the corresponding load considered, on the weighing machIne under verification. The absolute error for various denominations of standard weights shall be as given InAnnexure 1.These maximum permissIble errors for the standard weights must therefore be compatible with the number of scale divisions on the machines which they are Intend toverify. Furthermore, the density of standard weights must besuch that a Variation of ± 10 per cent ambient air denSity, with respect to its reference value, does not produce a variation, In the result of weighing the standard weight In air,exceeding 1/4 of its maxImum permlsslble error. By way of application of these requirements, the following table gives examples of the relation amongst :-

(a) the maximum number of scale divisions "n" on weighing machines under verification (assumed to be in accuracy dass III);

(b) the maximum permissible positIve or negative relative error on standard weIghts . usedfor initial verification of these machines; and

(c) the corresponding lower limit for the density of the standard weights. TABLE Maximum number MaximumPermissible Minimum of scale divisions positive or negative density ~n" on weighing relative error on the kg/mJ machines standard weights (accuracydass Ill), capableof verification with the standard weights during verification

(1) (2) (3) 1000 3.3/10000 1231 3000 1.7/10000 2087 5000 1.0/10000 3000 10000 0.5/10000 4364 Note : Independent of the requirements concerning the density of the weights, it is desirable to obtaln-particularly for reference standards or those -of a high nominal value-a density of about 8000 kg/ ml. For example, a cast iron body may beused, which incorporates a special cavity In which a lead core may be cast, with a mass of approximately 30 per cent of the total nomInal mass of the standard.

9. Inscriptions and markings Standard weights must carry their nominal value in numerals, followed by the symbol for the unit used and a verification mark.

10. Adjustment and verification Adjustment of the standard weights must be such as to comply with the maximum permissible errors given In this specification. In particular this may be achieved In the case of adjustment by the double substItUtion weighing technique (Gauss transposition method, or Borda substitution method), using as . reference standards, weights haVing an error of less than 1/3 of the maximum pe

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