ASTM D6405-99(2020) PDF

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 nontannins 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. 1.2 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, 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 D6405-99(2020) Referenced Document

ASTM A5 Specification for High-Carbon Steel Joint Bars
ASTM D1517 Standard Terminology Relating to Leather
ASTM D4903 Standard Test Method for Total Solids and Water in Vegetable Tanning Material Extracts
ASTM D4904 Standard Practice for Cooling of Analytical Solutions
ASTM D6401 Standard Test Method for Determining Non-Tannins and Tannin in Extracts of Vegetable Tanning Materials
ASTM D6402 Standard Test Method for Determining Soluble Solids and Insolubles in Extracts of Vegetable Tanning Materials
ASTM D6403 Standard Test Method for Determining Moisture in Raw and Spent Materials
ASTM D6404 Standard Practice for Sampling Vegetable Materials Containing Tannin

2020 ASTM D6405-99(2020) Standard Practice for Extraction of Tannins from Raw and Spent Materials
1999 ASTM D6405-99(2014) Standard Practice for Extraction of Tannins from Raw and Spent Materials
1999 ASTM D6405-99(2009) Standard Practice for Extraction of Tannins from Raw and Spent Materials
1999 ASTM D6405-99(2004) Standard Practice for Extraction of Tannins from Raw and Spent Materials
1999 ASTM D6405-99 Standard Practice for Extraction of Tannins from Raw and Spent Materials