ISO-3623 › Historical Revision Information
Photography - Processing Chemicals - Specifications for Anhydrous Potassium Carbonate
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Cancels and replaces the first edition (1976). Establishes criteria for the purity of photographic-grade anhydrous potassium carbonate and specifies the tests to be used to determine the purity.
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37.040.30 (Photographic chemicals)
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Document Number
ISO 3623:1976
Revision Level
1ST EDITION
Status
Superseded
Publication Date
May 1, 1976
Committee Number
ISO TC 42/WG 6