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SRPS ISO 4321:1992

Washing powders — Determination of active oxygen content — Titrimetric method

Apr 7, 1992
Apr 7, 1992

General information

90.93     Aug 30, 2022

90.20    Jul 15, 2027

ISS

H091

International Standard

71.100.40  

Serbian  

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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

NOW

PUBLISHED
SRPS ISO 4321:1992
90.93 Standard confirmed
Aug 30, 2022

Related project

Adopted from ISO 4321:1977