ASTM-D3913 Standard Test Method for Acidity in Basic Chromium Tanning Liquors

ASTM-D3913 - 2003 R20(E1) EDITION - CURRENT
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Standard Test Method for Acidity in Basic Chromium Tanning Liquors
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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 This standard does not purport to address all of the safety problems, 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

acidity; basic chromium tanning liquor; basicity; ICS Number Code 59.140.10 (Processes and auxiliary materials)

To find similar documents by ASTM Volume:

15.04 (Soaps and Other Detergents; Polishes; Leather; Resilient Floor Coverings)

To find similar documents by classification:

59.140.10 (Processes and auxiliary materials)

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Document Number

ASTM-D3913-03R20E01

Revision Level

2003 R20(E1) EDITION

Status

Current

Modification Type

Reapproval

Publication Date

April 17, 2020

Document Type

Test Method

Page Count

3 pages

Committee Number

D31.06