000 00249nam a2200073 4500
080 _a
_b
245 _aBS: 848(Part 1) - 1980 (with Amendment); Fans for general purposes Part 1 methods of testing performance
700 _aBritish Standards Institution
260 _aLondon
_bBSI
_c1980
300 _a79+8p
999 _c33342
_d33342