Flotation pyrite. Specifications
STANDARD published on 1.1.1977
Designation standards: GOST 444-75
Note: WITHDRAWN
Publication date standards: 1.1.1977
The number of pages: 47
Approximate weight : 141 g (0.31 lbs)
Country: Russian technical standard
Category: Technical standards GOST
Implemented changes and corrections:
Amd. 4.81
Amd. 4.87
Amd. 10.91