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ISO 10636:1994

Photography — Processing chemicals — Specifications for anhydrous sodium thiosulfate and sodium thiosulfate pentahydrate

Apr 21, 1994

General information

90.93     Jun 6, 2026

ISO

ISO/TC 42

International Standard

37.040.30  

French   English  

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Published

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Scope

Specifies the purity requirements and describes the test methods for insoluble matter, heavy metals content, iron, alkalinity, acidity, sulfide content, pH value, appearance of solution.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 419:1972

WITHDRAWN
ISO 3300:1976

NOW

PUBLISHED
ISO 10636:1994
90.93 Standard confirmed
Jun 6, 2026