Liquid chemical products. Measurement of colour in Hazen units (platinum-cobalt scale)
NORMA vydána dne 1.1.1993
Designation standards: GOST 29131-91
Publication date standards: 1.1.1993
The number of pages: 7
Approximate weight : 21 g (0.05 lbs)
Country: Russian technical standard
Kategorie: Technické normy GOST