ASTM D1981-02(2006)

    Standard Test Method for Measuring Color After Heating of Tall Oil Fatty Acids


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    1. Scope

    1.1 This test method covers the measurement of the Gardner color of tall oil fatty acids after heating in an atmosphere of nitrogen at 205°C for one or two h, depending on whether its iodine value is over or under 15, respectively. The specimen may be heated using either an aluminum heating block or an oil bath. This method is applicable to all tall oil fatty acids. Applicability of this method to other types of fatty acids has not been determined.

    1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

    1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    D1544 Test Method for Color of Transparent Liquids (Gardner Color Scale)

    D6166 Test Method for Color of Pine Chemicals and Related Products (Instrumental Determination of Gardner Color)

    E1 Specification for ASTM Liquid-in-Glass Thermometers


    ICS Code

    ICS Number Code 87.060.20 (Binders)

    UNSPSC Code

    UNSPSC Code


    Referencing This Standard
    Link Here
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    DOI: 10.1520/D1981-02R06

    Citation Format

    ASTM D1981-02(2006), Standard Test Method for Measuring Color After Heating of Tall Oil Fatty Acids, ASTM International, West Conshohocken, PA, 2006, www.astm.org

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