NEN-ISO 5990
Photography - Processing chemicals - Specifications for potassium sulfite, 650 g/l aqueous solution
active, Most Current
| Organization: | NEN |
| Publication Date: | 1 February 2001 |
| Status: | active |
| Page Count: | 18 |
| ICS Code (Photographic chemicals): | 37.040.30 |
scope:
Established criteria for the purity of photographic-grade potassium sulfite, 650 g/l aqeous solution, and psecifies the test methods to be used to determine the purity.
Document History
NEN-ISO 5990
February 1, 2001
Photography - Processing chemicals - Specifications for potassium sulfite, 650 g/l aqueous solution
Established criteria for the purity of photographic-grade potassium sulfite, 650 g/l aqeous solution, and psecifies the test methods to be used to determine the purity.