If you are an ASTM Compass Subscriber and this document is part of your subscription, you can access it for free at ASTM Compass
    ASTM D465 - 15(2020)

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

    Active Standard ASTM D465 | Developed by Subcommittee: D01.34

    Book of Standards Volume: 06.03

      Format Pages Price  
    PDF 4 $46.00   ADD TO CART
    Hardcopy (shipping and handling) 4 $46.00   ADD TO CART

    Significance and Use

    3.1 These test methods are designed to broaden the scope of the earlier editions of the test method by the inclusion of tall oil and tall oil derived products as test materials and will be referenced in Test Methods D803.

    3.2 The acid number is an important property of pine chemical products, such as tall oil, and the products obtained by the fractionation of tall oil. It is the test method widely used to determine the total free acid content of these products.

    3.3 The potentiometric test method should be used when the most reproducible results are required.

    1. Scope

    1.1 These test methods are intended for determining the acid number of pine chemical products as defined in Terminology D804 including tall oil products, wood and gum rosin, and other related materials. These test methods may not be applicable to all modified rosin products. Two test methods are covered, as follows:

    1.1.1 Potentiometric method (referee), and

    1.1.2 Internal indicator method (alternate).

    1.2 The potentiometric method is suitable for use with both light- and dark-colored products. It should be considered the referee method. The internal indicator method is suitable for use only with light- and medium-colored products with a Gardner color of less than 12. It should be considered the alternate method.

    1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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

    D803 Test Methods for Testing Tall Oil

    D804 Terminology Relating to Pine Chemicals, Including Tall Oil and Related Products

    E70 Test Method for pH of Aqueous Solutions With the Glass Electrode

    E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods

    E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

    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/D0465-15R20

    Citation Format

    ASTM D465-15(2020), Standard Test Methods for Acid Number of Pine Chemical Products Including Tall Oil and Other Related Products, ASTM International, West Conshohocken, PA, 2020, www.astm.org

    Back to Top