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
ASTM
Standard Practice for Calculation of (Non-Mineral) Combined Tanning Agents and Degree of Tannage
STD-54062
2000
2010-04-01
2