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  • BSI
    BS 3762-3.25:1989 Analysis of formulated detergents - Quantitative test methods - Methods for determination of water and volatile matter content
    Edition: 1989
    $281.30
    / user per year

Description of BS 3762-3.25:1989 1989

This Section of BS 3762 describes methods for determining the content of water or volatile matter in formulated detergents.

NOTE 1 The water determined may include water of crystallization.

Method 1 is for determination of water in samples that do not contain volatile compounds that are miscible with water, for example, low molecular mass alcohols. Method 2 is for determination of the loss in mass on heating at 150 °C, which indicates the volatile matter content; the result will be the water content if water is the only volatile compound in the sample. Method 3 is for determination of water in liquids and in pastes and solids that release all their water during the titration of a solution or a dispersion in methanol; it is not applicable to samples that contain noticeable amounts of oxidizing agents, ketones, strong acids or strong bases.

NOTE 2 The titles of the publications referred to in this Section are listed on the inside back cover.



Entrainment method using azeotropic distillation with xylene, oven drying method (loss in mass on heating at 150°C) and Karl Fischer method.

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.

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