BS 3312:1961

Aluminium potassium sulphate (potash alum) photographic grade.

NORMA vydaná dňa 13.3.1961

The information about the standard:

Designation standards: BS 3312:1961
Note: NEPLATNÁ
Publication date standards: 13.3.1961
Approximate weight : 300 g (0.66 lbs)
Country: British technical standard
Kategória: Technické normy BS