ASTM D4904-99(2004)
Standard Practice for Preparation of Solution of Liquid Vegetable Tannin Extracts

Standard No.

ASTM D4904-99(2004)

Release Date

1999

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D4904-99(2009)

Latest

ASTM D4904-99(2020)

Scope

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.

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.

ASTM D4904-99(2004) history

• 2020 ASTM D4904-99(2020) Standard Practice for Cooling of Analytical Solutions
• 1999 ASTM D4904-99(2016) Standard Practice for Cooling of Analytical Solutions
• 1999 ASTM D4904-99(2009) Standard Practice for Preparation of Solution of Liquid Vegetable Tannin Extracts
• 1999 ASTM D4904-99(2004) Standard Practice for Preparation of Solution of Liquid Vegetable Tannin Extracts
• 1999 ASTM D4904-99 Standard Practice for Cooling of Analytical Solutions