ISO 3627:1994
Photography — Processing chemicals — Specifications for anhydrous sodium metabisulfite
Photography — Processing chemicals — Specifications for anhydrous sodium metabisulfite
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Photography — Processing chemicals — Specifications for anhydrous sodium metabisulfite
Cancels and replaces the first edition (1976). Establishes criteria for the purity of photographic-grade anhydrous sodium metabisulfite and describes the tests to be used to determine the purity.
| Edition | 1994 |
|---|---|
| Published Date | 1994 |
| Published By | International Standardization Organisation |
| Page Count | 5 |