supply of dolomite powder , item description , white supply of dolomite powder packed in bages , as per following specifications:- ( i ) it shall be light in colour . ( ii ) it shall not combustable material . ( iii ) it shall not contain more then 5% free silica . ( iv ) it shall be of such fineness that dust which passes through 60 mesh sieve not less then 50% by weight and not more than 75% by weight shall pass through 240 mesh sieve . ( v ) it shall be readily dispersable into air . ( vi ) it shall not cake in general humid atmosphere . note : the bidders are required to submit undertaking along-with their offer that they will submit certificate from any govt . / approved lab for the above specifications mentioned at sl . no . ( i ) to ( vi ) along-with each supply .