Standard Historical Last Updated: Dec 31, 2010 Track Document
ASTM D4904-99(2004)

Standard Practice for Preparation of Solution of Liquid Vegetable Tannin Extracts

Standard Practice for Preparation of Solution of Liquid Vegetable Tannin Extracts D4904-99R04 ASTM|D4904-99R04|en-US Standard Practice for Preparation of Solution of Liquid Vegetable Tannin Extracts Standard new BOS Vol. 15.04 Committee D31
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Significance and Use

The solubility of extracts is influenced by temperature. The analytical solutions prepared from tanning extracts are dissolved or diluted in hot water. It is necessary to exercise caution in cooling these solutions and to do so in such a way as to avoid chilling, under-cooling, or uneven cooling of the solutions.

Scope

1.1 This practice covers the preparation of a solution of liquid extract that is to be used in the tannin analysis of that extract.

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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Details
Book of Standards Volume: 15.04
Developed by Subcommittee: D31.01
Pages: 2
DOI: 10.1520/D4904-99R04