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ISO 3619:1994

Photography -- Processing chemicals -- Specifications for ammonium thiosulfate solution

General information

Valid from 08.12.1994
Directives or regulations
None

Standard history

Status
Date
Type
Name
08.12.1994
Main
Cancels and replaces the first edition (1976). Establishes criteria for the purity of photographic-grade ammonium thiosulfate solution and specifies the tests to be used to determine the purity.

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Standard monitoring