000 00234nam a2200085 4500
080 _a
_b
245 _aIEC: 60079-5-1997-04; Electrical apparatus for explosive gasatmospheres - Part 5: Powder Filling 'q'
100 _aIEC
250 _a2
260 _aGeneva
_bIEC
_c1997
300 _a25
999 _c37102
_d37102