1.1 This test method is intended for use in determining the quantity of soluble non-tannins and tannin in solutions of tannin extracts, water extracts of vegetable tanning materials, or tanning liquors. The method is applicable to the analy
ASTM
Standard Test Method for Determining Non-Tannins and Tannin in Extracts of Vegetable Tanning Materials
STD-51532
1999
2009-04-01
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