ASTM D6409-99(2020) PDF

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.

ASTM D6409-99(2020) Referenced Document

ASTM A40 Specification for Engine Bolt Iron
ASTM D1517 Standard Terminology Relating to Leather
ASTM D4901 Standard Practice for Preparation of Solution of Liquid Vegetable Tannin Extracts
ASTM D4905 Standard Practice for Preparation of Solution of Solid, Pasty and Powdered Vegetable Tannin Extracts
ASTM D6405 Standard Practice for Extraction of Tannins from Raw and Spent Materials

2020 ASTM D6409-99(2020) Standard Practice for Color Tests with Sheepskin Skiver
1999 ASTM D6409-99(2014) Standard Practice for Color Tests with Sheepskin Skiver
1999 ASTM D6409-99(2009) Standard Practice for Color Tests with Sheepskin Skiver
1999 ASTM D6409-99(2004) Standard Practice for Color Tests with Sheepskin Skiver
1999 ASTM D6409-99 Standard Practice for Color Tests with Sheepskin Skiver