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ISO 981:1973

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

Feb 1, 1973

General information

90.93     Nov 29, 2023

ISO

ISO/TC 47

International Standard

71.060.40  

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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

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

National adoptions

SRPS ISO 981:2014  
ISS

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

90.93   Standard confirmed

H047 more

SRPS H.B8.681:1992  
ISS

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

95.99   Withdrawal of Standard

H047 more