Quartz sand, ground sandstone, quartzite and veiny quartz for glass industry. Method for the determination of silicon dioxide
Document status: Replaced by GOST 22552.1-2019
Explosionproof electrical apparatus. Special construction. Technical requirements and methods of testing
Document status: Active
Fur skins and fur-coat dressed sheepskin. Method of determination of pH of aqueous extraction
Document status: Withdrawn
