fn apy fa-ctory or part of ,- factory *lii.h has been builtor br-ought into use after the iofor.ioient of these rules, no worker shall be allowed to work unless- (a'l if no mechanical means for general ventilation and for reduction of temPerature is emPloYed, and Rule 2l ] Bihar Factories Rules, 1950 I lT
(i) the width of the ro lm exceeds I8 mcters (59 fr.) or irs floor li:i;ii:ii,i.u,?,;n"n*.lffi:(,.;,:i*T"*.jloili;.,:5';;'tr:Chief Inspecror ;
(ii) the width of the room does not exceed I8 meters or its flcor area does not exceed 560 sq. meters, rhe aggregate area of ventilating openings is nct less than the area fJun"A from the applicable formula in appendix I :
Provided that the Chief Inspector in consideration of the special circumstances of a factory, oay perruit smaller ventilating openings to be providecl :
Provided further that for computing the aggregate area of ventilating openings no account shall be t-aken oT"Oiors (except doors without shuiters), ventilators or sky_ligt tr;
(b) if ventilating op.enings in any rorrrr or builcling are not adequate mechanical ventilation is provided and fans or 6ther means emp- Ioyed for this.pulpglg are^of such capacity as to circulare rnroufU the room or the Uuitalng six timeslri;;.iy hour a volume cf air equal to the cubic capality of the room oi U"itAing, u"a
(c) the internal heigbt of the at the lowest po;nt is not
Provided-that the chief Inspector may allow a lower heightof any roof, if_-
(i) the roof ilcludes suftcient la3'er of earthenware, tiles. wooc, com-pressed asbestos or atry other substance which is a bad "oohu"totof heat; or
(ii) it is. a double roof with an air space not less than six inches indepth open 1L,!: lrrosphere at tbi eaves ana-in ca;;f ;;;;i.groofs with sufficient means of egressof hot fout aiia; th;;;;;'".
(iii) a ceiling with sufficient air-space has been provided under theroof; or
(iv) the room_ is air conditioned or other efficiert arrangements havebeen made to keep the temperature of the room within reasonableIimits; or roof or the ceiling of any room or shed less than 14 feet from the floor level :
(v) the room roof ; or has re-inforced concrete or other kind of terraced
(vi) on sccount of the climatic or other conditions or the size of thefactory the Chief lospector consiiers that a heighi ir U feet isnot necessary or practrcable : - a
Provided further thatthe Chief_Inspector may require the internal heightto be increased up Jo -20 feet, rfl any process g.o.i"tiog h;;;l; .arriecr onwithin thc room of shed. ' J r------ E''v4! rD 21 ' Provision of Hygronneter.-In all departments of cotton spinning agd-weaving -lnills wherein artificial humidificiti"" lr "a.ptJ, LJgrometers shall be provided and maintained in such positions as are approved by tho t, I Bihar Factories Rules, 1950 I Rules 22-25lEl rnspector. The number of hygromcters shall be regulated according to the foll,owing scale :- (ai we aving D' l{:*:!ii;"*i t"?xn*:: r:T'.1.""";bt'"'$#'$Td;tlan 500 looms l,ooms in excess of 500' goo.o[?"3i!'i,?:!:;:T,ii;;oo'"i"Yf,::t"l;;IT.:?:].1?i",o"dJ't"ff :
feet or part therecf, in excess or thls'
(c) one additional hygrometer slall be provided and maintained outside each cotton ,;il;il; ;ie;;.;ilg fr"tory *herein artificial humidification ir""i;;;,i, ,"a--i;a posilion approvel by the Inspector' for taking hygrometer shade readings'