ASTM-D2807 › Historical Revision Information
Standard Test Method for Chromic Oxide in Leather (Perchloric Acid Oxidation)
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Scope
1.1 This test method covers the determination of chromic oxide in leathers that have been partly or completely tanned with chromium compounds. In general the samples will contain between 1 and 5 % chromium, calculated as chromic oxide.
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. See Section 7 for specific safety hazards.
Significance and Use
The procedure described is specific for chromium in leather. Vanadium is the only common interfering element and this is rarely present in quantity. The precision and accuracy of the methods are usually at least as good as the sampling of the leather itself.
The chromium content of leather relates to the degree of tannage obtained, and hence may be a matter for specification in the purchase of leather. The procedure described provides adequate accuracy for this purpose.
Keywords
ash; chromic oxide; perchloric acid oxidation; Ash; Chrome-tanning materials; Chromic oxide; Leather; Oxidation testing; Perchloric acid oxidation; ICS Number Code 59.140.30 (Leather and furs)
To find similar documents by ASTM Volume:
15.04 (Soaps and Other Detergents; Polishes; Leather; Resilient Floor Coverings)
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Document Number
ASTM-D2807-93(2009)
Revision Level
1993 R09 EDITION
Status
Superseded
Modification Type
Reapproval
Publication Date
July 1, 2009
Document Type
Test Method
Page Count
4 pages
Committee Number
D31.06