Respirators. Method of determination of dust penetrability coefficients
NORM herausgegeben am 1.7.1997
Designation standards: GOST R 50990-96
Publication date standards: 1.7.1997
The number of pages: 11
Approximate weight : 33 g (0.07 lbs)
Country: Russian technical standard
Kategorie: Technische Normen GOST