ASTM D6409 - 99(2020)
Standard Practice for Color Tests with Sheepskin Skiver
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Significance and Use
5.1 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 stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4 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
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
ICS Code
ICS Number Code 59.140.10 (Processes and auxiliary materials)
UNSPSC Code
UNSPSC Code 11162303(Sheep leather)
Referencing This Standard
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DOI: 10.1520/D6409-99R20
Citation Format
ASTM D6409-99(2020), Standard Practice for Color Tests with Sheepskin Skiver, ASTM International, West Conshohocken, PA, 2020, www.astm.org
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