ISO 418:1994

Photography — Processing chemicals — Specifications for anhydrous sodium sulfite ISO 418:1994

Publication date:   Apr 21, 1994

95.99 Withdrawal of Standard   Dec 20, 2001

General information

95.99 Withdrawal of Standard   Dec 20, 2001

ISO

ISO/TC 42 Photography

International Standard

37.040.30   Photographic chemicals

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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WITHDRAWN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WITHDRAWN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