ASTM D6405-99(2004)
Historical Standard: ASTM D6405-99(2004) Standard Practice for Extraction of Tannins from Raw and Spent Materials
SUPERSEDED (see Active link, below)
ASTM D6405
1. Scope
1.1 This practice covers extracting the tannin from raw and spent materials. The water extract obtained by this method is used to determine the tannin content of the original material. Analysis for total solids, soluble solids, and soluble non-tannins of the water extract from a material provides the information necessary to calculate the extractable tannin content of that material. The types of materials typically analyzed by this practice are products of plants such as woods, barks, leaves, nuts, fruits, roots, etc. and any of a wide variety of by-products (spent materials) from industrial processes utilizing plant products.
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.
ASTM Standards
D1517 Terminology Relating to Leather
D4903 Test Method for Total Solids and Water in Vegetable Tanning Material Extracts
D4904 Practice for Cooling of Analytical Solutions
D6401 Test Method for Determining Non-Tannins and Tannin in Extracts of Vegetable Tanning Materials
D6402 Test Method for Determining Soluble Solids and Insolubles in Extracts of Vegetable Tanning Materials
D6403 Test Method for Determining Moisture in Raw and Spent Materials
D6404 Practice for Sampling Vegetable Materials Containing Tannin
ALCA Methods
A5 Extraction of Raw and Spent Materials 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.Keywords
extraction; tannin; tannin analysis; vegetable tannin; vegetable tannin analysis; Extraction methods; Leather; Raw/spent leather materials; Spent materials; Tanning analysis/materials; Vegetable-tanned leather; Water treatment applications;
ICS Code
ICS Number Code 59.140.10 (Processes and auxiliary materials)
DOI: 10.1520/D6405-99R04
ASTM International is a member of CrossRef.
