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ASTM D8656-26
Standard Test Method for Analysis of Chrome Content (as Cr2O3) in Crust using Atomic Absorption or ICP
Standard Test Method for Analysis of Chrome Content (as Cr2 O3 ) in Crust using Atomic Absorption or ICP
D8656-26
ASTM|D8656-26|en-US
Standard Test Method for Analysis of Chrome Content (as Cr2 O3 ) in Crust using Atomic Absorption or ICP
Standard
D8656 Standard Test Method for Analysis of Chrome Content (as Cr2 O3 ) in Crust using Atomic Absorption or ICP>
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BOS Vol. 15.04 Committee D31
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ASTM International
Significance and Use
5.1Â The procedure described is for chromium in crust using atomic absorption or ICP. This method may be used to determine the chromium content in crust as an alternate to Test Method D2807.
5.2Â The chromium content of crust is related to the degree of tannage obtained, and hence may be a matter for specification in the purchase of crust. The procedure described provides adequate accuracy for this purpose.
Scope
1.1Â This test method covers the atomic absorption procedure, using nitrous oxide-acetylene flame, air-acetylene flame or ICP (inductively coupled plasma) to analyze the chrome content of crust (and leather) on a moisture-free basis.
1.2Â The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3Â 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. Some specific hazards statements are given in Section 9 on Hazards and in 12.5 and 12.20.
1.4Â 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.