BS 1380:1947

Speed and exposure index of photographic negative material.

NORMA vydaná dňa 15.7.1947

The information about the standard:

Designation standards: BS 1380:1947
Note: NEPLATNÁ
Publication date standards: 15.7.1947
Approximate weight : 300 g (0.66 lbs)
Country: British technical standard
Kategória: Technické normy BS