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Released: 01.02.2026
ASTM D6020-00R26
Standard Practice for Calculation of (Non-Mineral) Combined Tanning Agents and Degree of Tannage
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| Standard number: | ASTM D6020-00R26 |
| Released: | 01.02.2026 |
| Status: | Active |
| Pages: | 2 |
| Section: | 15.04 |
| Keywords: | combined tannins; degree of tannage; leather; tannin analysis; vegetable-tanned leather ; |
| ASTM number: | ASTM D6020 |
| Supersedes: | D6020-00R20 |
DESCRIPTION
1.1 This practice covers the determination of the combined tannin and nonextractable organic resins and the degree of tannage of all types of vegetable-tanned leather and leather with organic retannages. This practice does not apply to wet blue.
1.2 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.