GOST 2642.1-1971 Fireproof materials and products. Methods of chemical analysis of refractory clays, kaolins, fireclay, graphite-chamotte and semi-acid products, quartzites and dinas products
2016GOST 2642.1-2016 Refractories and refractory raw materials. Methods for determination of moisture content
1986GOST 2642.1-1986 Refractories and refractory raw materials. Method for the determination of hygroscopic moisture
1970GOST 2642.1-1971 Fireproof materials and products. Methods of chemical analysis of refractory clays, kaolins, fireclay, graphite-chamotte and semi-acid products, quartzites and dinas products