ASTM D6401-99(2004)
Historical Standard: ASTM D6401-99(2004) Standard Test Method for Determining Non-Tannins and Tannin in Extracts of Vegetable Tanning Materials
SUPERSEDED (see Active link, below)
ASTM D6401
1. Scope
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 analysis of liquid, solid, pasty, and powdered extracts and to extracts of raw or spent materials.
1.2 The values stated in SI units are to be regarded as the standard. The inch-pound units given in parentheses are for information only.
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 and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ALCA Method
A22 Non-Tannins and Tannin Official Methods of the American Leather Chemists Association. Available from the American Leather Chemists Association, University of Cincinnati, P.O. Box 210014, Cincinnati, OH 45221-0014.ASTM Standards
D2617 Test Method for Total Ash in Leather
D4901 Practice for Preparation of Solution of Liquid Vegetable Tannin Extracts
D4902 Test Method for Evaporation and Drying of Analytical Solutions
D4903 Test Method for Total Solids and Water in Vegetable Tanning Material Extracts
D4905 Practice for Preparation of Solution of Solid, Pasty and Powdered Vegetable Tannin Extracts
D6402 Test Method for Determining Soluble Solids and Insolubles in Extracts of Vegetable Tanning Materials
D6405 Practice for Extraction of Tannins from Raw and Spent Materials
Keywords
non-tannins; soluble non-tannins; tannins; tannin analysis; vegetable tannin analysis; Non-tannins content; Raw/spent leather materials; Soluble non-tannins; Tanning analysis/materials; Tanning liquors; Vegetable-tanned leather;
ICS Code
ICS Number Code 59.140.10 (Processes and auxiliary materials)
DOI: 10.1520/D6401-99R04
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