Russian standards
Copper alloys sections for collectors of electrical machines. Specifications
Document status: Replaced by GOST 4134-2015
Reagents. Ammonium sodium hydrogen phosphate 4-aqueous. Specifications
Document status: Active
Drinking-water. Methods of determination of mineral nitrogen-containing matters
Document status: Replaced by GOST 33045-2014
Reagents. Potassium ferroprussiate 3-aqueous. Specifications
Document status: Active