This Standard Reference Material (SRM) is intended primarily for the evaluation or calibration of methods for analysis of cements and materials of similar matrix. A unit of SRM 1884b consists of five sealed vials, each containing approximately 4.5 g of portland cement ground to pass through a 75 mum (No. 200) sieve. For more information, please refer to the COA and SDS.SRM 1884B_cert SRM 1884B _SDS
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