000 00447nam a22001457a 4500
003 OSt
008 090807t xxu||||| |||| 00| 0 eng d
082 _a621.317.7-213.34
110 _aIndian standards institution
240 _aIndian standard
245 _aSpecification for electrical measuring instruments for explosive gas atmospheres/1st rev.
260 _aNew Delhi
_bBureau of Indian Standards
_c1987
653 _aIS:8945-1987
942 _cISI
999 _c336461
_d336461