000 00269nam a2200085Ia 4500
008 180131b1958 xxu||||| |||| 00| 0 eng d
080 _a
_bBS-1259 - 1958
100 _aBritish Standards Institution
245 _aBs-1259 - 1958; Intrinsically Safe Electrical Apparatus And Circuits
260 _a
_bBSI
_c1958
999 _c40870
_d40870