Standard Reference Materials: Portland Cement Chemical Composition Standards (Blending, Packaging, and Testing)

摘要

Standard Reference Materials (SRMs) of portland cement are intended for use in evaluating chemical methods of analysis and in calibrating instrumental methods of analysis such as x-ray fluorescence and atomic absorption spectroscopy. The first cement SRMs, numbers 177, 1011, 1013, 1014, 1015, and 1016, are no longer in stock. SRMs 633, 634, 635, 636, 637, 638, 639, 1880, and 1881 have been produced to replace the first series. The paper describes the blending, packaging, homogeneity testing, and the detailed analysis of the chemical composition for the certification of SRMs 633-639 and 1880 and 1881.