ASTM D4904-99 - 10.5.1999
 
1. Scope

1.1 This practice is intended for use in the cooling of the analytical solutions, prepared under Methods D4901, D4905, and ALCA Method A5, since the analytical results obtained are to some extent dependent on the conditions of cooling.

1.2 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety problems 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.

 
2. Referenced Documents

D4905-99(2026)

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

D6405-99(2020)

Standard Practice for Extraction of Tannins from Raw and Spent Materials

D4901-99(2026)

Standard Practice for Preparation of Solution of Liquid Vegetable Tannin Extracts

Cooling of Analytical Solutions Official Methods of the American Leather Chemists Association. Available from the American Leather Chemists Association, University of Cincinnati, P.O. Box 210014, Cincinnati, OH 452210014.