000 00393nam a2200133Ia 4500
100 _aINDIAN STANDARDS INSTITUTION
650 _aIS:2720(part21)1976
365 _cRS
365 _d1
942 _cENGBK
245 _aIndian Standard Methods of Test for Siols Part XXIII Determination of Calcium Carbonate
_bIS 2720 1976
260 _bIndian Standard Institution
_c1976
_aNew Delhi
300 _a6p
999 _c28126
_d28126