Specification for ammonium thoisulphate photographic grade
Indian Standards Institution
Specification for ammonium thoisulphate photographic grade - New Delhi 1970 - 12p - IS : 5379-1969 .
PHOTOGRAPHIC CHEMICALS -- SPECIFICATIONS
PHOTOGRAPHIC CHEMICALS -- SPECIFICATIONS
389.6 IS : 5379
Specification for ammonium thoisulphate photographic grade - New Delhi 1970 - 12p - IS : 5379-1969 .
PHOTOGRAPHIC CHEMICALS -- SPECIFICATIONS
PHOTOGRAPHIC CHEMICALS -- SPECIFICATIONS
389.6 IS : 5379