ISO 5990:2000

Photography — Processing chemicals — Specifications for potassium sulfite, 650 g/l solution

Publication date: Dec 21, 2000

General information

Current stage: 90.93 Effective date: Jun 5, 2021

Originator: ISO

Owner: ISO/TC 42

Type: International Standard

ICS: 37.040.30

Languages: English

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Status: Published

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Scope

This International Standard establishes criteria for the purity of photographic-grade potassium sulfite, 650 g/I
aqueous solution, and specifies the tests to be used to determine the purity.

Life cycle

PREVIOUSLY

Revises
ISO 5990:1996

NOW

PUBLISHED
ISO 5990:2000
90.93 Standard confirmed
Jun 5, 2021

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