000 00312nam a2200121 4500
027 _aB.S. 2649 : Part 1 : 1955
_q1955
041 _aeng
942 _cSD
110 _aBritish Standard Institution, London
245 _aThe analysis of glass
260 _aLondon
_bBritish Standard Institution
500 _aSTD657
999 _c172721
_d172721