ISO-418 › Photography - Processing chemicals - Specifications for anhydrous sodium sulfite
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This International Standard establishes criteria for the purity of photographic-grade anhydrous sodium sulfite 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 418:2001
Revision Level
3RD EDITION
Status
Current
Publication Date
Dec. 15, 2001
Committee Number
ISO/TC 42