000 00239nam a2200085 4500
080 _a
_b
245 _aIEC: 60079-15-2001-02: Electrical apparatus for explosive gas atmospheres part 15: Type of protection 'n'
100 _aIEC
250 _a2
260 _aGeneva
_bIEC
_c2001
300 _a74
999 _c37108
_d37108