This standard applies to quartz sand obtained from the enrichment of kaolins and intended for the production of goods.
GOST 7031-1975 Referenced Document
GOST 20545-1975 Ground feldsparic and quartzfeldsparic materials. Method for determination of size distribution by sieve analysis
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