000 00478nam a22001577a 4500
003 OSt
008 090807t xxu||||| |||| 00| 0 eng d
082 _a614.894
110 _aBureau of Indian standards
240 _aIndian standard
245 _aRespiratory protective devices-specification
_bPart 2 open circuit breathing apparatus
250 _a1st rev.
260 _aNew Delhi
_bBureau of Indian standards institution
_c1994
653 _aIS 10245(Part 2):1994
942 _cISI
999 _c336622
_d336622