000 00228nam a2200073 4500
080 _a
_b
245 _aIEC: 376 - 1971; Specification and acceptance of new sulphur hexafluoride
700 _aInternational Electrotechnical Commission
260 _aGeneva
_bIEC
_c1971
300 _a43p
999 _c30047
_d30047