Standard Test Method for Conradson Carbon …
Designation: D 189 06 2Designation: 13/94An American National StandardBritish Standard 4380Standard Test Method forConradson Carbon Residue of Petroleum Products1This Standard is issued under the fixed designation D 189; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon ( ) indicates an editorial change since the last revision or Standard has been approved for use by agencies of the Department of Defense. 1NOTE Removed asbestos reinstated original research report footnote editorially in October 2007. 2NOTE Updated Summary of Changes and added to research report footnote editorially in December Scope* This test Method covers the determination of the amountof Carbon residue (Note 1) left after evaporation and pyrolysisof an oil, and is intended to provide some indication of relativecoke-forming propensities.
3.1.1 carbon residue, n—the residue formed by evaporation and thermal degradation of a carbon containing material. 3.1.2 Discussion—The residue is not composed entirely of carbon but is a coke that can be further changed by carbon pyrolysis. The term carbon residue is retained in deference to
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