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    ASTM D803 - 15(2020)

    Standard Test Methods for Testing Tall Oil

    Active Standard ASTM D803 | Developed by Subcommittee: D01.34

    Book of Standards Volume: 06.03

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    Significance and Use

    3.1 Tall oil, both crude and refined, is an important by-product of the alkaline (kraft) pulping of pine wood. It consists primarily of fatty acids, resin acids, and neutral materials; the levels of these various components depend on factors such as the species of pine tree, geographic location, climate, etc.

    3.1.1 Tall oil is used primarily as a commercial source of fatty acids and rosin, and, therefore, reliable methods for the analysis of these components is necessary.

    1. Scope

    1.1 These test methods cover the test procedures to be applied to whole tall oils or refined tall oils. Previous editions of these test methods have described test procedures that are used to test tall oil fatty acid, rosin, and other tall oil-derived products as well as test crude and refined tall oil. Consequently, these test methods are widely cited in reference books and industry literature for the testing of tall oil-derived products.

    1.1.1 In this current revision, procedural details of some of the often-cited test methods have been removed and the test methods consolidated with other existing test methods. In such cases the consolidated methods, applicable to all tall oil-derived products.

    1.2 The procedures appear in the following order:

    Physical Tests




     Rotational Viscometer Method (Preferred Method)


     Bubble Time Method


    Flash Point






     Insoluble Matter




    Chemical Analysis

    Acid Number


    Saponification Number


    Rosin Acids


    Unsaponifiable Matter


    Fatty Acids


    1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

    1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

    1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

    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

    D92 Test Method for Flash and Fire Points by Cleveland Open Cup Tester

    D93 Test Methods for Flash Point by Pensky-Martens Closed Cup Tester

    D269 Test Method for Insoluble Matter in Rosin and Rosin Derivatives

    D464 Test Methods for Saponification Number of Pine Chemical Products Including Tall Oil and Other Related Products

    D465 Test Methods for Acid Number of Pine Chemical Products Including Tall Oil and Other Related Products

    D890 Test Method for Water in Liquid Pine Chemicals

    D1065 Test Method for Unsaponifiable Matter in Pine Chemicals, Including Rosin, Tall Oil, and Related Products

    D1240 Test Methods for Rosin Acids Content of Pine Chemicals, Including Rosin, Tall Oil, and Related Products

    D1466 Test Method for Sampling Liquid Oils and Fatty Acids Commonly Used in Paints, Varnishes, and Related Materials

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

    D1545 Test Method for Viscosity of Transparent Liquids by Bubble Time Method

    D1585 Test Methods for Fatty Acids Content of Pine Chemicals, Including Rosin, Tall Oil, and Related Products

    D2196 Test Methods for Rheological Properties of Non-Newtonian Materials by Rotational Viscometer

    D3278 Test Methods for Flash Point of Liquids by Small Scale Closed-Cup Apparatus

    D5974 Test Methods for Fatty and Rosin Acids in Tall Oil Fractionation Products by Capillary Gas Chromatography

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

    E300 Practice for Sampling Industrial Chemicals

    ICS Code

    ICS Number Code 87.060.20 (Binders)

    UNSPSC Code

    UNSPSC Code 13111103(Tall oil rosin)

    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/D0803-15R20

    Citation Format

    ASTM D803-15(2020), Standard Test Methods for Testing Tall Oil, ASTM International, West Conshohocken, PA, 2020, www.astm.org

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