718061

ISO 4321:1977

Washing powders -- Determination of active oxygen content -- Titrimetric method

standard by International Organization for Standardization , 09/01/1977

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Full Description

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.

 

Product Details

Published:
09/01/1977
Number of Pages:
2
File Size:
1 file , 220 KB
Same As:
BS 3762-3.17:1983
Note:
This product is unavailable in Ukraine, Russia, Belarus