ASTM D3897-91(2012)


Standard Practice for Calculation of Basicity of Chrome Tanning Liquors ASTM International / 01-Apr-2012 / 2 pages

1.1 This practice is intended to show how the results of the chromium analysis (Test Method D3898) and the acidity determination (Test Method D3913) can be combined to permit calculation of the basicity of a chrome tanning liquor. 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.

Keywords: basicity; chrome tanning liquor; Schorlemmer; Acidity, alkalinity, pH--leather; Chrome-tanning materials; Tanning liquors ICS Number Code 59.140.10 (Processes and auxiliary materials)

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