GB 11725-1989

Health standard for dust containing more than 80% free silica in the air of workplace

NORMA vydána dne 30.12.1988

Anglicky a čínsky -
Elektronické PDF (4137.40 CZK)

The information about the standard:

Designation standards: GB 11725-1989
Note: NEPLATNÁ
Publication date standards: 30.12.1988
Country: Chinese technical standard
Kategorie: Technické normy GB