ISO 418:2001
Photography - Processing chemicals - Specifications for anhydrous sodium sulfite

Standard No.

ISO 418:2001

Release Date

2001

Published By

International Organization for Standardization (ISO)

Latest

ISO 418:2001

Scope

This International Standard establishes criteria for the purity of photographic-grade anhydrous sodium sulfite andspecifies the tests to be used to determine the purity.

ISO 418:2001 history

• 2001 ISO 418:2001 Photography - Processing chemicals - Specifications for anhydrous sodium sulfite
• 1994 ISO 418:1994 Photography — Processing chemicals — Specifications for anhydrous sodium sulfite
• 1976 ISO 418:1976 Photographic grade sodium sulphite, anhydrous; Specification