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  • BS 3762-3.25:1989

    Current The latest, up-to-date edition.

    Analysis of formulated detergents Quantitative test methods - Methods for determination of water and volatile matter content

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  29-09-1989

    Publisher:  British Standards Institution

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    Method
    1. Scope
    2. Method 1. Entrainment
    3. Method 2. Oven drying
    4. Method 3. Karl Fischer
    5. Test report

    Abstract - (Show below) - (Hide below)

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

    Scope - (Show below) - (Hide below)

    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.

    General Product Information - (Show below) - (Hide below)

    Committee CII/34
    Development Note Supersedes 88/52266 DC and BS 3762(19640 (07/2005) Reviewed and confirmed by BSI, January 2011. (12/2010)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    BS 1715-2.6:1989 Analysis of soaps. Quantitative test methods Method for determination of moisture and volatile matter content
    BS 6829-0:1991 Analysis of surface active agents (raw materials) General introduction
    BS 6829-1.5:1990 Analysis of surface active agents (raw materials). General methods Methods for determination of water content

    Standards Referencing This Book - (Show below) - (Hide below)

    BS 756:1952 Specification for Dean and Stark apparatus
    BS 2511:1970 Methods for the determination of water (Karl Fischer method)
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