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ISO 418:1994

Photography — Processing chemicals — Specifications for anhydrous sodium sulfite

Apr 21, 1994
95.99   Withdrawal of Standard   Dec 20, 2001

General information

95.99     Dec 20, 2001

ISO

ISO/TC 42

International Standard

37.040.30  

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Scope

Establishes criteria for the purity and describes the test methods for insoluble matter content, heavy metals content, iron content, alkalinity, reaction to ammoniacal silver nitrate, thiosulfate, appearance of solution.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 418:1976

NOW

WITHDRAWN
ISO 418:1994
95.99 Withdrawal of Standard
Dec 20, 2001

REVISED BY

PUBLISHED
ISO 418:2001