ASTM D6409 - 99(2009)

    Standard Practice for Color Tests with Sheepskin Skiver

    Active Standard ASTM D6409 | Developed by Subcommittee: D31.01

    Book of Standards Volume: 15.04


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    Significance and Use

    This practice provides a standard procedure for comparing the color of leather tanned with different tanning extracts or mixtures of extracts or for monitoring the color consistency of tannery liquors.

    1. Scope

    1.1 This practice covers making color tests of all types of vegetable tanning extracts and of vegetable tanning materials to determine the color imparted to tanned skins.

    1.2 The values given in SI units are to be regarded as the standard. The inch-pound units 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

    D1517 Terminology Relating to Leather

    D4901 Practice for Preparation of Solution of Liquid Vegetable Tannin Extracts

    D4905 Practice for Preparation of Solution of Solid, Pasty and Powdered Vegetable Tannin Extracts

    D6405 Practice for Extraction of Tannins from Raw and Spent Materials

    ALCA Methods

    A40 Color Tests with Sheepskin Skiver Official Methods of the American Leather Chemists Association. Available from the American Leather Chemists Association, University of Cincinnati, P.O. Box 210014, Cincinnati, OH 45221-0014.


    ICS Code

    ICS Number Code 59.140.10 (Processes and auxiliary materials)

    UNSPSC Code

    UNSPSC Code 11162303(Sheep leather)


    DOI: 10.1520/D6409-99R09

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