ASTM D4654 - 87(2020)

    Standard Test Method for Sulfate Basicity in Leather

    Active Standard ASTM D4654 | Developed by Subcommittee: D31.06

    Book of Standards Volume: 15.04

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    Significance and Use

    3.1 This test method is used to determine the percent of total chromic oxide that is combined with hydroxyl and may serve as a measure of chrome fixation.

    1. Scope

    1.1 This test method is intended for use in calculating the sulfate basicity of mineral tanned leather.

    1.2 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.

    1.3 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

    D2807 Test Method for Chromic Oxide in Leather (Perchloric Acid Oxidation)

    D4655 Test Methods for Sulfates in Leather (Total, Neutral, and Combined Acid)

    ICS Code

    ICS Number Code 59.140.30 (Leather and furs)

    UNSPSC Code

    UNSPSC Code 11162300(Leathers)

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

    DOI: 10.1520/D4654-87R20

    Citation Format

    ASTM D4654-87(2020), Standard Test Method for Sulfate Basicity in Leather, ASTM International, West Conshohocken, PA, 2020,

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