NEN ISO 4321 : 1983
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WASHING POWDERS - DETERMINATION OF ACTIVE OXYGEN CONTENT - TITRIMETRIC METHOD
Published date
12-01-2013
Publisher
Defines a method for the determination of the active oxygen content of commercial washing powders. The method may be used for determining peroxyhydrates, for example sodium perborate; it should not be used for washing powders which contain, in addition to peroxyhydrates, products which react with acid permanganates under the analytical conditions.
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