ISO 981:1973

Sodium hydroxide for industrial use — Determination of chloride content — Mercurimetric method

Publication date: Feb 1, 1973

General information

Current stage: 90.93 Effective date: Nov 29, 2023

Originator: ISO

Owner: ISO/TC 47

Type: International Standard

ICS: 71.060.40

Languages: French English

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Status: Published

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Scope

The method is applicable to products of which the chloride content is greater than 0.005 % (m/m). The procedure based on titration of the chloride ions with mercury(II) nitrate in the presence of diphenylcarbazone as indicator. - Replaces ISO Recommendation R 981-1969.

Life cycle

NOW

PUBLISHED
ISO 981:1973
90.93 Standard confirmed
Nov 29, 2023

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