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ISO 697:1981
Surface active agents -- Washing powders -- Determination of apparent density -- Method by measuring the mass of a given volume
The method consists in determining the mass of powder in receiver of known dimensions, after filling with the sample from a funnel of specified shape under specified conditions. The method is applicable to free flowing powders and, provided that an appropriate funnel is used, to powders which have a tendency to cake. In the case of powder containing lumps, the method is applicable only if these can be disintegrated readily without braeking down the particles of the powder.
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International Organization for Standardization [iso]
International Organization for Standardization [iso]
