UNLIMITED FREE ACCESS TO THE WORLD'S BEST IDEAS

close
Already an Engineering360 user? Log in.

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

Customize Your Engineering360 Experience

close
Privacy Policy

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

ASTM International - ASTM D3913-03(2020)e1

Standard Test Method for Acidity in Basic Chromium Tanning Liquors

active
Buy Now
Organization: ASTM International
Publication Date: 1 April 2020
Status: active
Page Count: 3
ICS Code (Processes and auxiliary materials): 59.140.10
significance And Use:

4.1 The acidity of a chrome tanning liquor, as determined by this test method, is rarely employed as such. This result is normally combined with the results of a chromium analysis (see Test Method... View More

scope:

1.1 This test method covers the determination of the titratable acidity of chromium tanning liquors. By titratable acidity is meant not only free acidity, which is rarely present, but also anions combined with weakly basic cations such as Chromium (III), which can be titrated with base at the phenolphthalein end point.

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 D3913-03(2020)e1
April 1, 2020
Standard Test Method for Acidity in Basic Chromium Tanning Liquors
1.1 This test method covers the determination of the titratable acidity of chromium tanning liquors. By titratable acidity is meant not only free acidity, which is rarely present, but also anions...
September 1, 2015
Standard Test Method for Acidity in Basic Chromium Tanning Liquors
1.1 This test method covers the determination of the titratable acidity of chromium tanning liquors. By titratable acidity is meant not only free acidity, which is rarely present, but also anions...
April 1, 2009
Standard Test Method for Acidity in Basic Chromium Tanning Liquors
1.1 This test method covers the determination of the titratable acidity of chromium tanning liquors. By titratable acidity is meant not only free acidity, which is rarely present, but also anions...
May 10, 2003
Standard Test Method for Acidity in Basic Chromium Tanning Liquors
1.1 This test method covers the determination of the titratable acidity of chromium tanning liquors. By titratable acidity is meant not only free acidity, which is rarely present, but also anions...
January 10, 1998
Standard Test Method for Acidity in Basic Chromium Tanning Liquors
1.1 This test method covers the determination of the titratable acidity of chromium tanning liquors. By titratable acidity is meant not only free acidity, which is rarely present, but also anions...
Advertisement