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>ISO 424:1994 - Photography — Processing chemicals — Specifications for anhydrous sodium carbonate and sodium carbonate monohydrate
sklademVydáno: 1994-10-20
ISO 424:1994 - Photography — Processing chemicals — Specifications for anhydrous sodium carbonate and sodium carbonate monohydrate

ISO 424:1994

ISO 424:1994 - Photography — Processing chemicals — Specifications for anhydrous sodium carbonate and sodium carbonate monohydrate

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Označení normy:ISO 424:1994
Vydání:2
Vydáno:1994-10-20
Počet stran (Anglicky):4
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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.