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Standard Practice for Extraction of Tannins from Raw and Spent Materials
STANDARD published on 1.4.2009
Designation standards: ASTM D6405-99(2009)
Note: WITHDRAWN
Publication date standards: 1.4.2009
SKU: NS-35006
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: American technical standard
Category: Technical standards ASTM
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 Number Code 59.140.10 (Processes and auxiliary materials)
Significance and Use | ||||||||||||||||
This practice provides a standard procedure for obtaining the water-soluble materials (including tannins) from any material that can be prepared for and charged to the steam-jacketed extractor. The extraction solutions are then analyzed according to Test Methods D 4903, D 6401, and D 6402. |
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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. 1.2 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. |
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2. Referenced Documents | ||||||||||||||||
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