This standard applies to quartz sand, ground sandstone, quartzite and vein quartz intended for the glass industry.
GOST 22552.2-1993 history
2019GOST 22552.2-2019 Quartz sand, ground sandstone, quartzite and veiny quartz for glass industry. Methods for determination of ferric oxide
1993GOST 22552.2-1993 Quartz sand, ground sandstone, quartzite and veiny quartz for glass industry. Methods for determination of ferric oxide
1977GOST 22552.2-1977 Quartz sand, ground sandstone, quartzite and veiny quartz for glass industry. Method for the determination of mass fraction of ferrous oxide