Legal Metrology (General) Rules… 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	Legal Metrology (General) Rules, 2011 with amendments
Type	Rules
Year	2010
Jurisdiction	State of Punjab
Status	In force as published by the source
Text	Published as one document, as the source published it
Subjects	consumer

,, - ',, J-· ~' 318 ·THE GAZETTE OF'!NDIA: EXTRAORDINARY [PART II-SEC. 3(i)) MINISTRY OF CONSUMER AFFAIRS, FOOD AND PUBLIC DJSTRIBUTION (DEPARTMENT OF CONSUMER AFFAIRS) NOilFICATION New:Delhl; the. 7th February 2011 G.S.R. ll(E).- In exercise of the powers conferred by sub-section {1) read with Clauses (c),

(f), (h), (i) and_(~) of sub-section (2) ofsectlon 52 of The Legal Metrology Act 2009, (l.of 2010), the Central Government here~y,makes,thefollowing rules, namely

CHAPTER I . PRELIMINARY

1. Short title and•commencement

(1) These rules may be called the Legal Metrology (General) Rules, 2011.

(2) They shall mme into force on the 1• day of April, 2011.

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

(a) "Act" means the Legal Metrology Act, 2009 (1 of 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. CHAPTERll SPEOACATIONS OF STANDARDS OF WEIGHTS AND MEASURES

3. Reference standards

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

(2) The ~axlmum permissible error In respect of any reference standard weight, on verification or re-verification after adjustment, shall be such as is specified 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-verification, shall be such as Is specified in Part II of First Schedule.

4. Secondary standards

(1) Every secondary standard weight shall conform, as regards denomination, material used In construction, and design, to the specifications laid down In Part I of Second Schedule.

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

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

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

5. Working standards

(1) Every working standard weight shall conform, as regards denomination, material used in construction, and design, to the specifications laid down in Part I of 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 laid down in Part II of Third Schedule.

(4) The maximum permissible error in respect of any working standard metre bar,.on verification or re-verification, 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 Ill of Third Schedule. - -----.,-----,--c-----:---------------:----

(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 III 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, specify and different maximum permissible errors may be specified in relation to different types of reference standards, or secondary standards, or working standards.

CHAPTER ill SPECIACATIONS 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 specifications of such balances shall be as are specified in Part I of 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 specified 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 weigbts are kept for the purpose of verification of working standards.

(2) The number, types and specifications of such balances shi!_ll be as are specified in Part II of 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 II of Fourth Schedule.

9. Working standard balances

(1) Asetofworklng standard balances shall be maintained at every place where working standard . -~·---~---·· --- ----:--·" , ____________________________ --- __ ._.,_,_. __ _ 319 weights are kept for the purpose of verification of weights Intended to be used for transaction or protection.

(2) The number, types and specifications of such balances shall be as are laid down In Part Ill 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 specified In Part III of 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 metrological qualities, to such specifications as the Central Government may, in the same notification or subsequent notification, specify.

CHAPTER IV WEIGHTS OR MEASURES AND WEIGHING AND MEASURING INSTRUMENTS U.Welghts

(1) Save as otherwise provided in these rules, every weight used or intended to be used- 4-::J••

(a). In any transaction, or

(b) for protection, shall conform, as regards physical characteristics, configuration, constructional details, materials, performance, tolerances and such other details, to the corresponding specifications laid down for such weight 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 specified 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) Every measure used or intended to be used for-

(a) any transaction, or

(b) protection, .· .... 320 THE GAZETTE OF INDIA: EXTRAORDINARY (PART II-SEC. 3(i)] shall conform, .asc 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 lnstrumentused 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 such other details, to the corresponding specifications laid down for such weighing instrument In Seventh Schedule:

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

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

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

15. Registration of Importer

(1) Every manufacturer or dealer of weight or measure who 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: PROVIDED that 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 specified 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 of 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 persop 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 a weight or measure exclusively 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 has obtained the previous permission from the Central Government.

(3) Every person intending to manufacture 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 such weight or measure and shall in such application Indicate-

(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 evidence indicating the 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 Central Government shalf, if it is satisfied 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 permission or that weights or measures manufactured by the applicant have found their way irto the Indian market or that the applicant had made any statement in his appffcatfon for the permission which 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 showing cause against the proposed action.

(5) Every permission granted under sub-rule

(4) shall remain vaffd for a period of one year and shall be renewed for a like period on payment of a like fee unless the Central Government is satisfied that the applicant has made any statement in his application which is false In material particulars or that he had concealed some material particulars or had contravened any provision of the Act or any rule made 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 rule shall submit to the Central Government, 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. • 321

17. Prohibition on sale of non-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 non standard weight or measure Every person who makes or manufactures any non-standard weight or measure for export shalf 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 of weights 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. sample checking 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 Is to be made so requires, a sample checking of such weight or measure shall be made by such agency as 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 requirements of the Act and tile 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 reason of such checking.

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 sample checking of such weight or measure shall be made by such agency as 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 specifications given by the party to whom the export · is to be made or, where the party aforesaid has not given any specification, whether the weight or measure conforms to the specifications laid down by the manufacturer. --- - _ __J____ ___ _ 322 THE GAZETTE OF INDIA: EXTRAORDINARY [PART II-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-standard weight or measure is not ·slrnllar to any standard weight or measure, the Central Government may specify such amount as fees as is . 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 agency completes 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-STANDARD WEIGHT OR MEASURE TO BE USED FOR SOENTIAC INVESTIGATION OR RESEARCH

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 person needing such non-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 is satisfied that the manufacture of such non-standa.rd weight or measure is needed for the purpose aforesaid, it may authorise the 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 said non-standard weight or measure In accordance with the specifications given by the applicant.

Explanation: For the purpose of this rule, a non· standard weight or measure means a weight or measure which Is, or Is proposed to be, manufactured In accordance with any unit of weight or measure, other)han 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 Controller and other Legal Metrology Officers in this behalf shall have the goods weighed or measured on a verified weighing 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 has committed 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: PROVIDED that if the trader or his agent or the other person (who has committed the offence) refuses to sign the form, the Director or the person authorised 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 package and 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 an,d other 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 Legal Metrology Officers In this behalf may retain the package for 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 rneasure shall afford a reasonable opportunity by ['WI IH!l'"6 3(i)] returning such weight or measure exclusively 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 business carried 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 3 of the said Schedule.

26. Useofreglonallanguages · 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 verlfication.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 such weight or measure is put to use and shall be re-verified and stamped at periodical Intervals.

(2) The re-verification shall be carried out on the completion of a period of,-

(a) twenty four months for all weights, capacity 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-verified and stamped, before being put into use. 323

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

28. Qualifications of Legal Metrology Officer

(1) No person shall be appointed as Legal Metrology Officer uniess he -

(a) Is a graduate of a recognized university In Science (with physics as one of the subjects), tech no logy or engineering or holds a recognized diploma In engineering with 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 officials 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 basic training 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 by a 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 business of the company or any establishment, branch or 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:

(a) 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 acquired, accrued or incurred under the said rules; or ----.,-----'--- 324 THE·GAZETTE OF IND!A:EXTRAORDINARY [PART Il--8EC. 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 proceedings or 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 including approval of letter, exemption granted, fees collected, any adjudication, enquiry or investigation commenced, license and registration of manufacturers, dealers, importers of weights and measures, non-standard weights and measures or show cause notice, decision, determination, 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 provisions of these rules shall apply to any application made to the Central Government or as the case may 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 at 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 said rules and pending shall be deemed to have beer. made under the corresponding provisions of these rules. INDEX OF SCHEDULE OF THE LEGAL METROLOGY (GENERAL)RULES,2011

PART!

PART II

PART! · PARTII

PART III FIRST SCHEDULE Reference Standard Weights Reference Standard Metre Bar SECOND SCHEDULE Secondary Standard Weights Secondary Standard Metre Bar Secondary Standard Capacity Measures

PART!

PART II PARTIII

PART!

PART!! PARTIII

PART!

PART II

PART III

PART!

PART II

PART III PARTIV PARTV

PART VI

PART VII

PART VIII THIRD SCHEDULE Working Standard Weights Working Standard Metre Bar Working Standard Capacity Measures FOURTH SCHEDULE Reference Standard Balances Secondary Standard Balances Working Standard Balances FIFTH SCHEDULE Weights (Other than Carat Weights) Carat Weights Standard Weights for testing of High Capacity Weighing Machine SDCTlt SCHEDULE Liquid Capacity Measures Dispensing Measures Liquor Measures Length Measures (Non-Flexible) · Folding Scales Fabric or Plastic Tape Measures Steel Tape Measures . Surveying Chains

PART IX Tapes for Use in Measurement of Oil Quantities SEVENTH SCHEDULE- HEADING A SPEOF,[CAllONS FOR NON-AUTOMATIC WEIGHING INSTRUMENTS

PART!

PART II SEVENTH SCHEDULE- HEADING B Beam Scales Counter Machines SEVENTH SCHEDULE- HEADING C AUTOMATIC RAIL WEIGHBRIDGE SEVENTH SCHEDULE- HEADING D AUTOMATIC GRAVIMETRIC .FIWNG INSTRUMENTS SEVENTH SCHEDULE- HEADING E DISCONTINUOUSTOTAUZINGAllTOMAllC WEIGHINGINSTRUMENT(TOTAUZING HOPPER WEIGHERS) EIGHniSCHEDUi.E SPEOFICAllONSFORMEASURINGINSTRUMENTS

PART!

PART II PARTIII Volumetric Container Filling Machines Bulk Meters Water Meters ----- __ t I ['WI IH91"6 3 ( i)]

PART IV PARTY

PART VI

PART VII

PART VIII

PART IX Measuring Systems for Liquids Other than Water Volumetric Container Type Liquid Measuring Device Clinical Thermometer Manometers of Instruments for Measuring Arterial Blood Pressure (Sphygmomanometers) Taximeter Compressed gaseous fuel (CNG) measuring systems for vehicles NINTli SCHEDULE PROCEDURE FOR CARRYING OIIT CAUBRATION OF VEHICLE TANKS ETC.

PART!

PART II

PART III Calibration of Vehicle Tanks for Petroleum Products and other Liquids Method for Calibration of Vertical Oil Storage Tanks Method for Computation of Capacity Tables for Vertical Oil Storage Tanks. TENnfSCHEDULE APPUCATIONFO~FORREGISTRATIONOF IMPORll:R OF\IVEIGHTSAND MEASURES ELEVENTH SCHEDULE RE~RTOBE~NTAINEDBYTHE MANUFACTURERS/DEALERS/REPAIRERS OF WEIGHTS AND MEASURES lWELFTHSCHEDULE SCALE OF FEE lHJRT!ENTHSCHEDUL.E Format for no111lnation of the Director by the Company FIRST SCHEDULE DENOMINATIO~,MAll:RIAlS,SHAPEAND PERMISSIBLE ERRORS, IN RESPECT OF REFERENCE STANDARDS [S#JeRule3]

PART I REFERE,.CESTANDARD WEIGHTS l. Denominations Kilogram series Gram series Milligram series

(1) (2) (3) 5 500 500 2 200 200 2 200 200 1 100 100 50 50 20 20 '-'r7l! <;6/!J- i'J..

(1)

2. Materials

(2) 20- 10 5 2 2 1 325

(3) 20 10 5 2 2 1

(a) Weights of 5 kg to 1g shall be made from admiralty bronze (88 Cu, 10 Sn, 2Zn), nickel chromium alloy (80 Ni, 20 Cr) or austenitic stainless steel (25 Ni, 20 Cr) or (20 Ni, 25 Cr).

(b) Weights of 500 mg to 10 mg shall be made from wire of either pure platinum, nickel chromium alloy (80 Nl, 20 Cr) or austenitic stainless steel (25 Nl, 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. Noll!!: The material used for all the weights shall be non-magnetic and it shall be ensured that the finished weights are also practically non-magnetic.

3. Shape and finish

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

(b) For milligram series- The weights shall be made from the wire having five segments for 500, SO, 5 mg weights, two segments for 200, 20, 2 mg weights and one segment for 100, 10, and 1 mg weights. One end of the wire shall be bent at right angles for the purposes of lifting It with a pair of forceps.

(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 finish.

4. Maximum permissible errors Denomination

(1) 5 kg 2 kg 1 kg - - ..!- -- ---.- - Permissible error .1:. mg

(2)

7.5

3.0

1.5 --------- 326 -:THE· GAZETTE'OF INDIA: EXTRAORDINARY [PART II-SEC. 3(i)]

(1) .(2) SOOg 10.75 • 200g :0.30 lOOg :Q:lS SOg :.0.10 20g 0.080 lOg ·0:060 Sg •.0:050 2g 0:040 lg '0;030 SOOmg 0.025 200mg 0.020 lOOmg O.DlS SOmg 0.012 20mg 0.010 lOmg 0.008 Smg 0.006 2mg 0.006 1 mg 0.006 s. 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 so as to 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 kilogram and 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. Inscription The boxes containing the weights shall have the following inscriptions:

(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 ormanufacture,

(f) The verification mark of the NPL.

PART II- 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 and dimensions

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

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

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

4. Graduations

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

(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 have dean edges.

(e) The width of graduation marks shall be between 8 and 10 micrometres. 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. ['flTT 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 be square 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. 1 mm for mm marks. The marks shall be disposed equally on either 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 :- 3 mm for first and last mark. 2 mm for 0.5 mm marks. 1 mm 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 571 mm 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) When supported at the marked Bessel points, the graduated surface shall be flat to within

0.05 mm, I.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. 327

(b) The auxiliary scale shall consist of 1000 marks corresponding to the marks of the main scale. ·

(c). 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 mlcrometres 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 em marks.

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

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

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

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. -~--~~~4-----~ ·~.,.,.~-. '•\ · Ot5<ANC(IIETW€EN 1 t 'II '•:I If ~-!.~. lit• -"hi U tl •. v ~~~r·.· .. ,. , TWO LO"GlTI,IOII\IAL LINI$ OUP ·~ -·1 --· .. -~-- - ANOAR:; :T-~~ (AC. NI..;.J_·:~i'ER!:NCEi:.STAHDARO LEitS.TH III!ASUflf.(R\) I.G_'_MIIiT 30MBAY- :'' :· ST .. :r:;:~~· , · 11 · • ., • . ! lll\1!1 lmll' • r . ~::· :: II · tmm_:. ~ -:-tmm ;~1000 ... ~ .. ,,.,;o. . . I --. .--, t· ·< T ~· ' :·l REFERENCE STANDARD METRE BAR Figure-1 .--· .... 328 ·THE .GAZETTE OF INDIA : EXTRAORDINARY [PART Il--sEC. 3(i)J

(c) The separation of the longitudinal setting lines shallbe.0.2 mm and<theirwidth shall be in between.8.and'lO:micrometres.

(d) Each longitUdinal.setti~g:line.shall be straight to within'30 micrometres.

(e) The longitudinal setting lines shall be parallel to each.other:to.within 50.micrometres.

7. Maximum permissible error

(a) When the metre bar .is supported on its marked:Bessel;points, the errors in length between:any two graduation marks of the main scalel!tthetemperature of 2o•c, shall not exceed:0;010·mm.

(b) In the :case of the .fine scales, the error between any two 0.1 mm marks shall not exceed 0,005 mm.

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

(a) the words "REFERENCE STANDARD METRE 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 be made 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 AT2o•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 identification number. SECOND SCHEDULE DENOMINATIONS, MATERIALS, SHAPE AND PERMISSIBLE ERRORS IN RESPECTOF$ECONDARYSTANDARDS [SeeRule4

PART I-SECONDARY STANDARD WEIGHTS J. Denominations Kilogram series Gram series Milligram series

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

(1) 2 1

2. Materials 1(2) 100 j5o 20 20 10 5 2 2 1

(3) 100 50 20 20 10 5 2 2 1

(a) Weights of 10 kg to 1 g shall be made from admiralty bronze (88 Cu, 10 Sn, 2 Zn), or nickel-chromium alloy (80 Ni, 20 Cr) or austenitic stainless steel (20 Ni, 25 Cr) or (25 Ni, 20 Cr).

(b) Weights of 500 mg to 50 mg shall be made from cupro-nickel (75 Cu, 25 Ni), or nickel chromium alloy (80 Nl, 20 Cr), or austenitic stainless steel (20 Nl, 25 Cr), or (25 Nl, 20 Cr).

(c) Weights of 20 mg to 1 mg 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. Shape and 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 have adjusting 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+ mg 10 kg 50 5 kg 25 2 kg 10 1 kg 5 500 g 2.5 200 g 1.0 100 g 0.5 50 g 0.30 ['WI !Hl!US 3 ( i) ]

(1) 20g lOg Sg 2g lg 500mg 200mg lOOmg 50mg 20mg lOmg Smg_ 2mg lmg

(2)

0.25

0.20

0.15

0.12

0.10

0.08

0.06

0.05 O.D4

0.03

0.02

0.02 s. Protective and carrying case

(3)

(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 velvet1 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 so as to avoid their movement during transit.

(b) Each milligram weight shall be provided with a separate housing. A covering glass or a sheet of any othertransparent1 non-reactive . and non-corrosive material shalf be provided so as to ensure that these weights are not dislocated during transit.

(c) A suitable device for lifting the kilogram and gram weights1 covered with chamois leather or other suitable materiaf1 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 WEIGHTS' 1

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

(d) the material used for weights

(i) kilogram & gram series

(ii) milligram series1

(e) the year of manufacture,

(f) the mark of verification. 329

PART D· SECONDARY STANDARD METRE BAR

1. Material The secondary standard metre bar (hereafter called metre bar) shall be manufactured from 58 per cent nickel-steel.

2. Shape and dimensions

(a) The metre bar shall have a rectangular cross· section with dimensions 30mm x 15mm approximately.

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

(c)· The overall length of the measure shall be 1030 ±1 mril 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 mllllmetres throughout from 0 to 1000 mm.

(b) A length of 10 mm before the zero graduation 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) Each graduation marks shall be straight to within ten micrometres over its length.

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

(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 em 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 [PART II-SEC. 3(i)]

(j) There shall be two shott longltudinal•setting lines eachof·5 mm in length which shall be drawn leaving a· blank space.of 2 mm, the onE! before the.firstand.the·other after the last graduation mark. Jhe longitudinalllnes shall be:on a straight line which repre5ent the imaglnar,y central·line and the departure from the.centralline.shall be not more than O.lmm.

(k) When supported-on :the Bessel points or on a fl<1i surface :the .graduated surface shall be flat:to,wlthin 0:05 mm, i.e. all the points on the•surface shall.be between two parallel planes:0:05mm apart. S. Auxiliaryscale

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

(b) The auxnlary 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 towithin±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. ' . D ~ • H H 1111111 ~IBiillllilllljUU~U~! IW In llli~UI ' ' " , .. ·- ·- '"' " D SECONDARY STAHOI.RD METRE BAR FIGURE ·2

(f) The length of the graduation marks shall be not less than: 3 mm 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 3 mm.

6. Maximum permissible error 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 nominal length in millimetres 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.

7. Inscription The metre bar shall bear the following inscriptions: Q HYilllll

(a). the words "SECONDARY STANDARD METRE BAR",

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

(d) the material of the metre bar,

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

(f) the year of manufacture,

(g) the mark of verification on the plate of the carrying case of the metre bar.

8. Protective and 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 identification number.

Note: The existing secondary standard metre bars may differ In minor details in regard to setting lines and inscriptions, etc.

PART III-SECOI'IDARY STANDARD CAPACITY MEASURES l. Denominations Litre series (1) 5 2 1 Millilitre series ( ml) 500 200 100 so 20 Note: 111tre = 1 dm' - 0.001 m'; 1 ml= 1 em'

2.Material Secondary standard capacity 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 of 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 shall be securely packed in velvet lined teakwood boxes.

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

0.8

0.5

0.4

0.3

0.2 . 0.1 . 5. Protective and carrying cases 33 I These capacity measures shclll be stored in their boxes made from teakwood or any other suitable non· corrosive material 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. Each capadty measure shall be housed in such a manner so as to avoid their excessive movement during transit. Each striking glass of the capacity measure shall be securely 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 inscriptions:- ( 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 verifcatlon authority. llURDSOIEDULE DENOMINATIONS, MATERIAL, SHAPE AND PERMIS5IBI.E ERRORS IN RESPECT OF WORICING STANDARDS [See RuleS)

PART I- WORKING STANDARD WEIGKTS l. Denominations Kilogram series Gram series Milligram series

(1) (2) (3) 20 500 500 10 200 200 10 200 200 5 100 100 2 50 so 2 20 20 1 10 10 332 THE GAZETTE OF INDIA: EXTRAORDINARY [PART II-SEC. 3(i)]

(2)

2. Material '(2) 5 2 2 1

(3) 5 2 2 1

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

(b) Weights of:SOO mgto 100 mg shall be made 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) Weights of 50 mg to 1 mg shall be made of aluminium sheets. Copper, silicon and iron contained as impurities in the aluminium shall not exceed 0.3 per cent in the aggregate.

3. Shape and finish

(a) Weights of 20 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) shall 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 be marked on the weights.

(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 e/TOr The permissible errors in excess and in deficiency shall be as follows:- Denomination Permissible error.± mg 20kg 300 10 kg 150 . 5 kg 75 2 kg 30 1 kg 15 500g 7.5 200g 3.0 lOOg 1.5 . 50g 1.0 20g 0.8 lOg 0.6 Sg 0.6 2g 0.4 lg 0.3 500mg 0.25 200mg 0.20 100mg 0.15 50mg 0.12 20mg 0.10 lOmg 0.08 5mg 0.06 2mg 0.06 1mg 0.06

5. Pro.tectlve and carrying 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 so as to 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, non-reactive [ 'lJ1T !H;!f~ 3 ( i) ] 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 kilogram and gram weights, covered with chamois leather or other sultaqle 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 'WORKING STANDARD WEIGHTS',

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

(d) the year of manufacture,

(e) the marks of verification. PARTU- WORJ<ING STANDARD METRE BAR

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

2. Shape and dimensions t'

(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 ± 1 mm 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 10 mm before the zero graduation mark shall also be graduated In mllllmetres.

(c) The scale shall be regular. The thickness of · the graduation marks shall be uniform and shall lie between 30 and BO micrometres. . '

(d) The width of the graduation marks shall be uniform to within± fifteen per cent of the average width of all the marks. 333

(e) The graduation marks representing centimetres shall be longer than those representing half c-entimetres and the graduation marks representing half centimetres shall be longer than those representing milllmetres.

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

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

(h) The length of the graduation marks shall be not less than- 3 mm for mm marks. 5 mm for half em marks. B mm for em 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 3 mm.

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

5. Cursor

(a) The errors on the length measure under 'Verification shan be determined by means of a scale marked on a plate, made from transparent material, whlch·is carried by a 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 scale to read the errors to the nearest of0.1 mm; or (li} one millimetre divided into 10 parts for reading the errors directly to the nearest of 0.1 mm.

(c) T))e thickness of the graduation marks on the scale shall be less than that of the graduation marks on the metre bar.

(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 SX if the scale is graduated in 0.1 mm and not less than 3X If the scale is of Vernier type. 334 THE GAZETTE OF INDIA: EXTRAORDINARY [PART II-SEC. 3(i))

(f) The cursor shall'be such that lt 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, ·fewer 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 the.metre bar shall be provided.

(h) For facilitating the verification of end measures, two vertical stops bearing reference lines shall be provided. The first stop .shall be .such that its reference line can be aligned with the zero mark of the metre 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 length measure, at the standard temperature of 20'C, shall not exceed the value "e" calculated according to the following formula: e = (SO+L/20) micrometres where Lis the nominal length In mllllmetres 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 mlcrometres.

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

(a) the words "WORKING STANDARD METRE BAR';

(b) identification number of the metre bar,

(d) the material of the metre bar,

(e) the words, figures and letter "STANDARD AT 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 plastic materia! 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 CAPACrTY MEASURES

1. ·Denomination Litre series (I) 10 5 2 1

2. Material Millilitre series (ml) 500 200 100 50 20 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 lltres shall be cylindrical and 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 Slltres and 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 measures shall be 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 specially selected striking glass and the measures and glasses shall be securely packed in velvet lined teakwood boxes.

4. Maximum pennissible error Denomination Permissible error in ml :t. ml 10 lltres 8 Slltres 4 · 2lltres 2 llltre 1.5 500 ml 1.0 200m! 0.8 100m! 0.6 50 ml 0.4 20ml 0.2 ['ll'T n-= 3(i)J

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

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

(b) Graduated pipettes of capacities 5 ml graduated at every tenth of mi.

6. Delivery time and maximum permissible errors of pipette measures Denomination Delivery time Permissible ml ---'l"'n-"seco='-'nd:::s'---- error ( + ml) 10 5 5 (Graduated) Minimum Maximum 15 10 10 25 20 40

7. Protective and carrying cases

0.04 0,03

0.05 These capacity measures shall be stored in their boxes made from teakwood or any other suitable non corrosive material 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. Each capacity measure shall be housed in such a manner so as to avoid their excessive movement during transit. Each striking glass of the capacity measure shall be securely housed in proper grooves so as to protect them from breakage during transit. 335

8. Inscriptions The boxes containing these capacity measures shall have the following inscriptions : . (a) the words "WORKING STANDARD CAPACTIY MEASURES'~

(b) the identification number of the capacity measures,

(d) the year of manufacture,

(e) the mark(s) of verification of proper verification authority; FOURlli SCHEDULE SPECIFICATIONS 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 1 part in one nilllion for weights from 10 kg to 10 g and± 0.01 mg for weights from 5 g to lmg. PARTU-5ECONDARY STANDARD BALANCES

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 5enslfiVItY figure Mm. scale diVISion Maximum vanat1on Minimum overall mg/div. In sensitivity figure accuracy of with respect to load measurement 1 2 3 4 5 20kg 25 1.5mm 10 per cent 25 mg In 10 kg 5 kg 7.5 l.Omm 10 percent 7.5 mg in 2 kg 1 kg 1.5 l.Omm 10 percent 1.5 mg in 500 g 200g 0.5 l.Omm 10 per cent 0.5 mg in 50g 20g 0.1 l.Omm 10 percent 0.01 mg in 1 mg 2g 0,02 0.75mm 10 percent 0.02 mg in 1 mg 2 .. the standard deviation of the 10 consecutive rest pointS for every secondary standard balance shall not be more than one scale division. 336 THE .GAZETTE OF INDIA: EXTRAORDINARY [PART II-SEC. 3(i)]

3. The 1devlation·fn arm ratio from unity, for every secondary standard equi-arm.balance shall not be more than;a fraction.equal :to sensitivity figure divided by fullload(both being taken'in the same unit).

4. The variation in time ;periods at different loads for every secondary standard .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 antlttheir.respective planes is broken when the balance'is.in atrested position.

6 .. The •secondary .standard balance shall, ordinarily, be used .for indoor work in laboratories.

7. Every secondary standard balance of digital type shall conform -as regards value of verification scale interval as given below:- capacity Maximum value Type of weights of verification to be verified scale interval 20 kg 1 mg 20 kg to 500 g 200 g O.Dl mg 200 g to 1 mg PARTW- WORKING STANDARD 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 equl-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 accuracy 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 g 200 g 1 mg 20 per cent 1 mg in 100 g 50 g 0.4 mg 20 per cent 0.4 mg in 5 g 2g 0.05 mg 20 per cent 0.05 mg in 1 mg

2.1 The standard deviation of ten consecutive rest points for every 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 1 g Non-bullion : 50 kg and 20 kg 20 kg 0.1 g Bullion : 10 kg, 5 kg; Non-bullion : 20 kg to2 kg 2 kg 10 mg Bullion : 2 kg to SOOg; Non-bu!!lon : 2 kg to 200g 200 g 0.1 mg Bullion : 200 g and below; Non-bullion : 200 g and below

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

5. The deviation in arm ratio from unity, for every working stand<Jrd 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 SOfEDULE (5ee Rule 11)

PART-I Weights (Other than Carat Weights} General This Part deals with the following categories of weights:- --- ---~--- -,--.----------- [ '11'1 IH!iOs 3( i)] (A) Iron weights, paralleloplped (SO kg to 5 kg) (B) Cylindrical knob type weights (10 kg to 1g) ·(C) Iron weights, hexagonal (SO kg to 50 g) (D) Bullion weights (10 kg to 1 g) and (E) Sheet metal weights (500 mg to 1 mg) A.-IRON WEIGHTS PARALLELOPIPED (50 kg to 5kg)

1. Denominations Paralleloplped Iron weights shall have the following denomlnatlons:- Kilogram series : 50, 20, 10 and 5.

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 shapes shall be as shown either in Figure 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) Type 2 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: Tjlpe 1 loading 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 337 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. (Ill) The plug or a disc shall be sealed by means of a lead pellet pressed firmly into an internal circular slot or in the ·threaded part of the tube. Tjlpe 21oadtng 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 closed by a plate cut from m lid steel. (Ill) 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-third of the depth of the loading hole shall remain empty after adjusbment.

5. Markings

(a) The denomination of the weight and the marker'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 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: · ·fil;ffi or f<nm 5 kg Note: The abbreviation fll;ffi or f<nm, 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. TABLEl Paralleloplped Weights Dimensions for Type 1 Weights (In millimetres) Denomination A A' 8 8' H c D E F GIG' Skg 150 152 75 77 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 310 314 155 157 192 83 74 16 152 24/32 '1 7 1-t c, () tt--f5S' 338 THE GAZETTE OF INDIA: EXTRAORDINARY [PART II-SEC. 3(i)j Denomination I J K T L N 0 u v w p 5 kg 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 50 kg 300 10 25 M27 X 1.5 21 2 3 27.5 30 27 8 Sides A and A' as also B and B' may be lnversed. TABLE 2 Para!lelopiped Weights Dimensions for 'TJipe 2 Weights. (In millimetre$) Denomination A A' B B' H c D E F G J K M N p 5 kg 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 50 kg 310 314 155 157 192 83 74 16 152 40 10 25 70 40 148 Sides A and A' also B and B' may be lnversed. STOPPEft. VARIIITY I ~-:..-.---- ----c~i~------ =------ • VARIETY2 IPJ ... CEAD PLEI.LET L ~FACTUllERS NAME OR ADEMARX ~---~ ' L .. - -..J ~- ... PARALLEL PIPED WEIGHT 1YPE I Figure3 , [ 'll'l II-<li"S 3 (i ) ] 339 1--f-;:--;~..,.--- A' ~ ·.~ T - I "? •• 0 I I ' . ! 1 I ! SOUOIWIIlll l i I • • I L._ • .J J I A J I . -. !Rounded Corners ~ Manufacturer's Name or Trade Mark "f,-----, "-----c :1_ !mkg Parallelopiped Weight Type 2

7. Finish The weights shall be finished smooth and be free from dross, pits, blow-holes and other defects. They shall be protected against corrosion by applying 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 50 kg 20 kg 10 kg Skg

9. Stamping Permissible error Verification Inspection

(mg) (mg) 7500 ±7500 3000 ±3000 1500 ± 1500 750 ±750 The Legal Metrology Officer's seals shall be stamped on the lead pellet within the loading hole. (See Figure 3 & Figure 4). Figure 4 B.-cYUNDRICAL KNOB TYPEWEIGHTS(lO kg to lg)

1. Denominations Cylindrical weights shall have the following denominations : Gram series: 500, 200, 100, SO, 20, 10, 5, 2 and 1 Kilogram series : 10, 5, 2 and 1

2. Shape

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

(b) The shapes shall be as shown in Figure (5).

3. Material The weights shall be made or 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 gold, 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 g to 1 g both Inclusive, shall be solid, integral weights without a loading hole. -----------------·------~~---- ----------------- 340 THE GAZETTE OF INDIA: EXTRAORDINARY (PART Il-8F.c. 3(i)J

(b) Weights ofdenoniinations10'kgto20 g both inclusive, shall be provided with a loading hole.

(c) The loading hole shall be cylindrical 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 closed either by means of a 'threaded brass plug or a flat brass disc. (See Figure 5).

Note: The thread used .shall be 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 flat 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 drcular groove in the wider part of the loading hole.

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

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

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

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 denomination of weights of 10 kilograms to 500 grams may also be indicated on the cylindrical body of the weight, provided that the numerals and letters of the symbol shall be larger than those used for 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 : ~orf.l;mSkg m or lJ1ll 100 g Note :The abbreviation ~. W;n, m or lJ1ll 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 dimensions shall be : (I) for weights 1 kg. and below± 10 per cent; (II) for weights above 1 kg± 5 per cent. TABLE 3 Cylindrical Knob TYpe Weights-Dimension for Weights in mm. Denomination u v w H y R J 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 g 38 34 22 6 5.5 1.5 3.2 200 g 28 25 16 4.5 4 1.5 3.2 100 g 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 Sg 8 7 4.5 1.4 1.25 0.5 1 loading 2g 6 5.5 3 1 0.9 0.5 1 hole 1 g .. 6 5.5 3 1 0.9 0.5 1 ['WI Jl-1Ji116 3(i)) '11«1 "" "'""" : 3lm'lRUT 341 TABLE4 Cylindrical Knob Type Weights-Dimension for Loading Hole Variety I and U In mm. Denominations A 8 c D E 20 g 3 18 . 5.5 2.5 6.5 50 g 4.5 25 7.5 3.5 9 100 g 4.5 30 7.5 3.5 9 200 g 7 40 10;5 4.5 12 500 g 7 50 10.5 4.5 12 1 kg 12 65 18.5 7 20 2 kg 12 80 18.5 7 20 5 kg 18 120 24.5 8 26.5 10 kg 18 160 24.5 8 26.5 . LOADWG tta.E -.ElY I .. 1 ~UEAD~UET . ~ I. I I ...... .. I >.~.;_-:;o.l---f--..1 l ~ j ../ t F G L

1.5 1 9 2 1 10 2 1 10

2.5 1.5 15

2.5 1.5 15 4 2.5. 20 4 2.5 20 4 2.5 35 4 2.5 35 v _j )Yj w ~ ....... "' ·, ...... ~ ~-;.r u CYLINIIRlCAL KNOB TYPE WEIGHTS FIGURE-I T I M N p s M4 X 0.5 5 1 5 5 1 M6 x 0.5 5 1.5 7 7 1.5 M6 X 0.5 5 1.5 7 7 1.5 M8 x 1 8 2 10 10 2 M8 x 1 8 2 10 10 2 M14 X 1.5 13 3 18 18 3 M14x 1.5 13 3 18 18 3 M20 x 1.5 18 4 24 24 3 M20 X 1.5 18 4 24 24 3 -HOI.e _,.,.,, ~ UEAD.~~ • p -~ 8 N ·.·. 342 'THE'GAZETTE OF INDIA: EXTRAORDINARY . [PART IT-SEC. 3(i))

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

9. Permissible error The maximum permissible ·errors shall be as specified below : oenommatiOn ·10 kg 5 kg 2 kg 1 kg 500 g 200 g 100 g 50 g 20 g 10 g Sg 2g 1 g

10. Stamping .Permissible error · · :verification 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

(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 (50 kg to 50 g)

1. Denominations Hexagonal iron weights shall hiiVe the following denominations : Gram series : 500, 200, 100 and 50. Kilogram series : 50, 20, 10, 5, 2 and 1.

2. Shape · (a) The weights shall be integral and hexagonal. The shape shall be. as shown in Figures 6 and 6A,

(b) The weights of denominations of so kg and down to and including 5 kg shall be provided with cast-in handles made of mild steel.

3. Material The ·weights shall be made 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 formed at the foundry

(a) Forweights in Figure 6, this hole must be in the shape of 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 forp1 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). fil;ffi or f.fim 2 kg m or WI 200 g Note :The abbreviation fil>ffi, f.fim, 'liT or WI may be Indicated in the regional script.

7. Dimensions

(a) The dimensions shall be as specified in Tables s and SA.

(b) The tolerances on dimensions shall be : (I} for weights 1 kg and below± 10 per cent

(ii) For weights above 1 kg± 5 per cent. - -~ -- - "-·---- ----- ·--- ----- • ["'JTT II-~ 3(i)] '1m! q;] ~ : 3lm'lR"' 343 TABLES Dimensions for cast Iron or Forged Mild Steel S Weights (All dimensions In millimetres) Denomination A 8 c D. H p Q R s T 2kg_ 94 101 78 41 10 34 30 9 18 4 1 kg 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 100g 33 38 31 17 5 18 16 3 7 2.5 50g 27 31 24 u· 3 16 14 3 5 2 TABLE SA Dimensions of Cast Iron Weights with Cast-in Handles Denomination A 8 c D E 50 kg 236 253 134 170 100 20 kg 188 200 112 113 10 kg 152 161 92 88 Skg 125 132 75 65

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 error The maximum permissible errors shall be as specified below ; Denomination Permissible error 90 74 62 Verification Inspection 50 kg 20kg 10kg 5 kg 2 kg 1 kg 500g 200g 100g 50g

(mg) 7500 3000 1500 750 300 150 75 30 15 10

(mg) ±7500 ±3000 ±1500 ±750 ±300 ±150 ±75 ±30 ±15 ±10 (Dimensions in mm) G p Q R s T 27 58 48 24 102 32 21 44 38 19 66 22 18 36 30 15 54 19 15 29 25 12 40 16

10. Stamping The Legal Metrology Officer's seals shall be -stamped on the lead pellet within the loading hole -(See Figure 6). CAST IROtl Olt Hli\OEO ~ILO S'l'f.il, '.100 W-11 /lf,llllu FIG- 6 r-·-----~ I['~~~ .-------'-<-·a..:.-----·~ FIC IM:.u<T lltON 'llrU'ilfl5 WlT!I..:AST·r-IIW'ftl~f, D.-6UWON WEIGHTS {10 kg to 1 g)

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. ___ , 344 'THE·GAZE'T·TE OF ·INDIA: EXTRAORDINARY [PARTll-SEC. 3(i)]

2. Shape Bullion w~jghts shall be of:the followi~g .,two types: bottom face of the welg ht 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.

(i) Cylindrical:knob types--'Cylindrical knob type . weights cif denomination 10 kg to 1 g, both inclusive, shall be·otthe shape as specified in pa~graph:B,2.of this Part (See also Figure 5) but :shall bear .indiCations, specified In paragfi!ph6 to lndicate·that·they are bullion weights.

6. Marikings

(ii) Flat <;ylindrlcal type--;Fiat cylindrical type weights of< denominations 1 kg to 1 g both incluslve,,shall be ·flat cylindrical In shape, without a: knob and shall nest with each other (See figure .7).

3. Material Weights shall be made or manufactured from brass, gun meta!, ·bronze or the like.

4. Method of manufacture Weights sl:lall 'be either cast, pressed or turned from rods, or :made or manufactured by any other suitable method .as may be applicable to the selected material. s. Loading holes

(a) Weights of denominations 10 kg 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 1 g, 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

(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 1g, both inclusive, shall be marked on the body with 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 inclusive, 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 syl)lbols as illustrated below (See Figure 7): q or f.l;m 2 kg '!IT or '!fl11 10 g DIMENSIONS FOR FLAT CYUNDRICAL BULUON 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 lOOg 37 28.5 12 14 2.0 6 12.7 50g 28 21.5 10 11 1.5 3 11.0 20g 21 16.5 9 10. 1.5 3 8.4 lOg 16 12.5 ** ** 1.5 ** 6.9 Sg 12 9.5 ** ** 1.0 ** 5.9 2g 9 7.0 ** ** 1.0 ** 4.4 1g 6.5 ** ** ** ** ** 3.6 - -· -- -------,---- ·. ·•. [ 'lT'T I Hllll"!f 3 ( i) ] "1m! "" ~ : arn!'IR"J . 345 A0 l I 80 I ~ re- -~--------- -i------------J I 1 ir-- ----:--- ' -ce- --oB- Flat Cylindrical Bullion Weights Figure -7 · Note :The abbreviation fll>ffi, 1ll;m, m or WI may be indicated In the regional script. 7, Dimensions

(a) The dimensions of cylindrical knob type weights shall be as specified In Tables 3 and

(b) The dimensions of flat cylindrical weight shall be as specified in Table 6.

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

(ii) for weights above 1 kg ± 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 : Denomination

(1) 10kg 5 kg 2kg 1 kg SOOg Permissible error Verification Inspection

(mg) (mg)

(2) (3) 500 250 100 50 25 ±500 ±250 ±100 ±50 ±25

(1) (2) (3) 200g 10 ±10 100g 5 ±5 SOg 3 ±3 20g 2.5 ±2.5 lOg 2.0 ±2.0 Sg 1.5 ± 1.5 2g 1.2 ±1.2 lg 1.0 ± 1.0 · 10. stamping

(a) The Legal Metrology Officer's seals shall 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.-sHEET METAL WEIGKTS

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

(a) Bullion weights shall be circular in shape and shall have one edge bent for ease of hand I ing (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) 5, 50, 500 2,20,200 1, 10, 100

3. Material Shape after bending along one of the sides Equilateral triangle Square Regular hexagon Sheet metal weights shall be made or manufactured from brass, stainless steel, aluminium nickel-sliver 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 [PART II-SEC. 3(i)J TABLE7 DIMENSJ:ONS FOR SHEET METAL WEIGHTS (NON-BULUON) (Figure 9) (All dimensions In mill/metres) Denomination A1 A2 A3 8 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 TABLES DIMENSJ:ONSFORSHEETMETAL WEIGHTS (BULUON)(Figure8) Figure9). · (firnT) 500 mg (All dimensions in mill/metres) D C H Note :The abbreviation flrnT may be Indicated In the regional script. Denomination ., 500 mg 200 mg 100 mg 50 mg 20 mg ·10 mg 15 13 11 9 8 7 6 5

2.0

1.5

1.0

3.0

2.5

2.0

(b) The maker'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. Denomination (mg} 5 mg 2 mg 1 mg

7. F1nlsh 4 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 : Verification Maximum permissible error · TnSoection Bullion (mg} Non-bullion (mg} Bullion (mg} Non-bullion (mg} soo 0.8 2.5 ±0.8 ± 2.5 200 0.6 2.0 . ± 0.6 ±2.0 100 0.5 1.5 ±0.5 ± 1.5 so 0.4 1.2 ±0.4 ± 1.2 20 0.3 1.0 ±0.3 ± 1.0 10 0.25 0.8 ± 0.25 ±0.8 5 0.20 0.6 ± 0.20 ±0.6 2 0.20 0.6 ± 0.20 ±0.6 1 0.20 0.6 + 0.20 + 0.6 [ '1T'T IH!i116 3 ( i) ]

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 Figure 8 347 authenticated by the Issue of a certificate of verification which shall also mention 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. Sheet Metal Bullion Weights 500 D ' H " soo ' I J, I f1:rn"r mg I I H 200 T ·•· , f1:rn"r mg A, B ~,.,_J Flgure9 Sheet Metal Weights H 1 .... I I I I I J ~ ' \ \ \ ~ -~------ 348 .THE GAZETTE OF INDIA: EXTRAORDINARY (PART ll-SEC. 3(i)]

(c) The Legal Metrology·0ffice(s ,seals .(namely, year, quarter and identification) shall be stamped on sheet metal weights of denominations· 500 mg to ·so mg, both. indusive.

1. General

PART II CARAT WEIGHTS This Part deals with the requirements for carat weights intended for use in weighing pearls, diamonds and other precious stones.·

2. Denominations The denominations of carat weights shall be as given below (the gram ·and .milligram equivalents are shown against each for ·ready reference) :

(a) KNOB WEIGHTS (b) SHEET METAL WEIGHTS Denomination Equivalent Denomination Equivalent carat g carat mg 500 100 2 400 zoo 40 1 200 100 20 0.5 100 50 10 0.2 40 20 4 0.1 20 10 2 0.05 10

5. 1 0.02 4

0.01 2

0.005 1

3. Knob weights

(a) Materials

(i) 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, nickel chromium alloy or non-magnetic stainless steel.

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

(c) Permissible error The maximum permissible errors shall be as specified below : Denomination Verification Inspection Carat mg mg 500 5.0 ±5.0 200 3.0 ±3.0 100 2.5 ±2.5 50 2.0 ±2.0 20 1.5 ± 1.5 10 1.2 ±1.2 5 1.0 ±1.0 TABLE9 NOMINAL DIMENSIONS OF KNOB CARAT WEIGKTS [Clause 3(b)] (All dimensions in millimetres) Denominations Carat A* C** D E F G H 500 12.0 0.4 4.0 10.0 6.0 32.0 14.2 200 10.0 0.4 3.0 8.5 5.0 23.0 10.8 100 8.0 0.4 2.5 7.0 4.0 19.0 7.9 50 6.0 0.3 2.0 5.5 3.0 15.0 6.4 20 5.0 0.3 2.0 4.0 2.0 11.0 4.6 10 4.0 0.3 1.5 3.0 1.5 9.0 3.5 5 3.0 0.2 1.5 2.5 1.5 7.0 2.9 * The cross-section of the top of the knob is elliptical for all weights major axis being twice the minor axis (therefore for all weights 8= A/4) * * This Is a recommended dimension . . ,. f-. •" ~----· ., -..r ~,,.,. • -• r .,., ·1f''rflr·•"~ ___ .l ____ L.. I! ------·~~----,--~------:---;--c--:---- ['ll'l II ~ 3(i)] 349 Note :With a material of density 8400 kg/m' (exactly) the above dimensions will give weights which possess masses to 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 masses can be adjusted by controlling the dimension H. Denomination carat VerifiCiltfon Inspection

4. Sheet metal weights

(a) Materials-weights of denominations 0.2 carat and below shall be made of aluminium sheet. Weights of higher denominations shall be made of sheets of brass, aluminium, nickel-silver, nickel chromium alloy, bronze or cupro-nlckel.

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

0.5

0.2

0.1

0.05

0.02

0.01

0.005 mg· 2

0.8

0.6

0.5 . 0.4

0.3

0.25

0.20

0.20 TABLE10 mg 3 ±0.8 ±0.6 ±0.5 ±0.4 ±0.3 ±0.25 ±0.20 ±0.20 +0.20 Nominal dimension for sheet metal carat weights Denomination Size carat mm 2 12 1 10

0.5 9

0.2 8

0.1 7

0.05 6

0.02 5

0.01 4

0.005 3 Tolerance± 10 per cent Manufacturers Name or Trade Name Figure 10 Knob Carat Weight H Figure 11 Sheet Metal Carat Weight 350 '{fHE(GAZEITE 'OF INDIA: EXTRAORDINARY [PART IT--SEC. 3(i)]

5. Manufacture andllnWI

(a) The surface of '.the ·weights shall be reasonab)y smooth. Sheet :metal weights shall be smoothly sheared and shall be free from burrs.

(b) For better stabllicy and finish, the weights · may be nlckel,cor,~hodium :plated.

6. Marking

(a) Every welght,,e,xcept weights of 50 carat and lower •denominations, shall have the manufacturer's name or trade mark and the denomination .Indelibly marked on it.

(b) The denomination shall consist of the International form of Indian numeral prefixed and s~xed by the letter·~· and 'c' respectively except that in the case of weights below 50 carat, only the numerals shall be marked. 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·~· 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 series of denomination specified under 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 WEIGHTS FOR TESTING OF HIGH CAPACITY WEIGHING MACHINES

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 lOn kg, where k is generally . equal to 1, 2 or 5, and n is whole number equal to or greater than 2.

3. Shape ' The standard weights must have a relatively simple shape, with no sharp edges or corners. 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. Basis of adjustment

Legal Metrology (General) Rules, 2011 with amendments

The enactment

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