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ASTM D4654-87(2020)

ASTM D4654-87(2020)

Standard Test Method for Sulfate Basicity in Leather

2020-04-10 /Active
Significance and Use:

3.1 This test method is used to determine the percent of total chromic oxide that is combined with hydroxyl and may serve as a measure of chrome fixation.


1.1 This test method is intended for use in calculating the sulfate basicity of mineral tanned leather.

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

1.3 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.

chrome fixation; Schorlemmer's system; sulfate basicity ;
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