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immediate downloadReleased: 1994-10-20
ISO 424:1994
ISO 424:1994 - Photography — Processing chemicals — Specifications for anhydrous sodium carbonate and sodium carbonate monohydrate
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| Standard´s number: | ISO 424:1994 |
| Edition: | 2 |
| Released: | 1994-10-20 |
| Pages (English): | 4 |
DESCRIPTION
ISO 424:1994
Cancels and replaces the first edition (1976). Establishes criteria for the purity of photographic-grade anhydrous sodium carbonate and sodium carbonate monohydrate and specifies the test methods to be used to determine the purity.