000 00255nam a2200073 4500
080 _a
_b
245 _aIEC: 480 - 1974; Guide to the checking of sulphur hexafluoride (SF6) taken from electrical equipment
700 _aInternational Electrotechnical Commission
260 _aGeneva
_bIEC
_c1974
300 _a41p
999 _c30048
_d30048