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SSH ISO 4321:1977

Washing powders — Determination of active oxygen content — Titrimetric method

Sep 27, 2016

General information

60.60     Sep 27, 2016

DPS

DPS/KT 47

International Standard

71.100.40  

English  

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Scope

The determination consists in co-reduction, with liberation of oxygen, of the peroxyhydrate and potassium permanganate in an acid solution. Because of the specifity of washing powders and the relative stability of peroxyhydrates, the dissolution of washing powders is likely to be incomplete and may result in a loss of oxygen; these disadvantages have been avoited by adoption of a particular method of dissolution appropriate to the determination of active oxygen content. This method may be used for determing peroxyhydrates, for example sodium perborate.

Life cycle

PREVIOUSLY

WITHDRAWN
SSH 1426-6:1987

NOW

PUBLISHED
SSH ISO 4321:1977
60.60 Standard published
Sep 27, 2016

Related project

Adopted from ISO 4321:1977