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ASTM D6410-99(2009)

Historical Reaffirmation

Standard Test Method for Determining Acidity of Vegetable Tanning Liquors

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1.1 This test method covers determining the acidity of tannery liquors made up from vegetable tanning materials.

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 and health practices and determine the applicability of regulatory limitations prior to use.

This test method is used to determine one of the chemical properties of tannery liquors which are relevant for the vegetable tanning process and influence the astringency of vegetable tanning liquors. The astringency of liquors is dependent upon the solids and tannin content and the acidity. This test method provides a standard procedure for determining the total acidity for any sample of vegetable tanning liquor.

The specimens are aliquots from the analytical solution prepared from the sample of tannery liquor collected for this purpose.

The total acidity of the liquor sample is determined by one of two titrametric procedures described in this test method.

SDO ASTM: ASTM International
Document Number D6410
Publication Date April 1, 2009
Language en - English
Page Count 2
Revision Level 99(2009)
Supercedes
Committee D31.01
Publish Date Document Id Type View
May 10, 1999 D6410-99 Revision
Dec. 1, 2020 D6410-99R20 Reaffirmation
Nov. 1, 2014 D6410-99R14 Reaffirmation
April 1, 2009 D6410-99R09 Reaffirmation
April 1, 2004 D6410-99R04 Reaffirmation