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ASTM International - ASTM D4905-99(2020)

Standard Practice for Preparation of Solution of Solid, Pasty and Powdered Vegetable Tannin Extracts

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Organization: ASTM International
Publication Date: 1 December 2020
Status: active
Page Count: 2
ICS Code (Processes and auxiliary materials): 59.140.10
significance And Use:

4.1 The concentration of tannins in solid, pasty, and powdered extracts needs to be reduced to analytical strength for tannin analyses.

4.2 Vegetable tannin extracts are heterogeneous... View More

scope:

1.1 This practice covers a standard procedure for use in preparing the analytical solution required for the analysis of solid, pasty, or powdered vegetable tannin extracts.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

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.

Document History

ASTM D4905-99(2020)
December 1, 2020
Standard Practice for Preparation of Solution of Solid, Pasty and Powdered Vegetable Tannin Extracts
4.1 The concentration of tannins in solid, pasty, and powdered extracts needs to be reduced to analytical strength for tannin analyses. 4.2 Vegetable tannin extracts are heterogeneous mixtures of...
September 1, 2016
Standard Practice for Preparation of Solution of Solid, Pasty and Powdered Vegetable Tannin Extracts
4.1 The concentration of tannins in solid, pasty, and powdered extracts needs to be reduced to analytical strength for tannin analyses. 4.2 Vegetable tannin extracts are heterogeneous mixtures of...
April 1, 2009
Standard Practice for Preparation of Solution of Solid, Pasty and Powdered Vegetable Tannin Extracts
The concentration of tannins in solid, pasty, and powdered extracts needs to be reduced to analytical strength for tannin analyses. 4.2 Vegetable tannin extracts are heterogeneous mixtures of...
April 1, 2004
Standard Practice for Preparation of Solution of Solid, Pasty and Powdered Vegetable Tannin Extracts
The concentration of tannins in solid, pasty, and powdered extracts needs to be reduced to analytical strength for tannin analyses. 4.2 Vegetable tannin extracts are heterogeneous mixtures of...
May 10, 1999
Standard Practice for Preparation of Solution of Solid, Pasty and Powdered Vegetable Tannin Extracts
1.1 This practice is intended for use in preparing a solution of solid, pasty, or powdered extract for the use in determining the total solids, soluble solids and nontannins. 1.2 This standard may...
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