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ASTM International - ASTM D4901-99(2004)

Standard Practice for Preparation of Solution of Liquid Vegetable Tannin Extracts

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Organization: ASTM International
Publication Date: 1 April 2004
Status: inactive
Page Count: 2
ICS Code (Processes and auxiliary materials): 59.140.10
significance And Use:

The concentration of tannin in extracts must be reduced to analytical strength (4 g tannin per L) for analyses.

Vegetable tannin extracts are heterogeneous mixtures of components with... View More

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.

1.2 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.

Document History

December 1, 2020
Standard Practice for Preparation of Solution of Liquid Vegetable Tannin Extracts
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. 1.2 The values stated in SI units are to be regarded as standard....
September 1, 2016
Standard Practice for Preparation of Solution of Liquid Vegetable Tannin Extracts
4.1 The concentration of tannin in extracts must be reduced to analytical strength (4 g tannin per L) for analysis. 4.2 Vegetable tannin extracts are heterogeneous mixtures of components with...
April 1, 2009
Standard Practice for Preparation of Solution of Liquid Vegetable Tannin Extracts
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. 1.2 The values stated in SI units are to be regarded as standard....
ASTM D4901-99(2004)
April 1, 2004
Standard Practice for Preparation of Solution of Liquid Vegetable Tannin Extracts
The concentration of tannin in extracts must be reduced to analytical strength (4 g tannin per L) for analyses. Vegetable tannin extracts are heterogeneous mixtures of components with varying...
May 10, 1999
Standard Practice for Preparation of Solution of Liquid Vegetable Tannin Extracts
1.1 This method is intended for use in preparing a solution of liquid extract for use in the determination of the total solids, soluble solids, and non-tannins. 1.2 This standard may involve...
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