GOST 4148-1978 Reagents. Ferrous (II) sulphate 7-aqueous. Specifications
GOST 4165-1978 Reageuts. Copper II sulphate pentahydrate. Specifications
GOST 8.579-2002 State system for ensuring the uniformity of measurements. Requirements established for the quantity of prepackaged goods in packages of any kind during their manufacturing, packaging, selling or importing
GOST 857-1995 Synthetic hydrochloric acid for industrial use. Specifications