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About This Item
Full Description
1.1''This test method covers the microscopical determination of both the mean maximum and mean random reflectances measured in oil of polished surfaces of vitrinite and other macerals present in coals ranging in rank from lignite to anthracite. This test method can be used to determine the reflectance of other macerals.
1.2''Units'''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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4''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.
Document History
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ASTM D2798-21
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Standard Test Method for Microscopical Determination of the Vitrinite Reflectance of Coal- Most Recent
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ASTM D2798-20
Standard Test Method for Microscopical Determination of the Vitrinite Reflectance of Coal- Historical Version
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ASTM D2798-11a(2019)
Standard Test Method for Microscopical Determination of the Vitrinite Reflectance of Coal- Historical Version
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ASTM D2798-11a
Standard Test Method for Microscopical Determination of the Vitrinite Reflectance of Coal- Historical Version
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ASTM D2798-11
Standard Test Method for Microscopical Determination of the Vitrinite Reflectance of Coal- Historical Version
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ASTM D2798-09a
Standard Test Method for Microscopical Determination of the Vitrinite Reflectance of Coal- Historical Version
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ASTM D2798-09
Standard Test Method for Microscopical Determination of the Vitrinite Reflectance of Coal- Historical Version
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ASTM D2798-06
Standard Test Method for Microscopical Determination of the Vitrinite Reflectance of Coal- Historical Version
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ASTM D2798-05
Standard Test Method for Microscopical Determination of the Vitrinite Reflectance of Coal- Historical Version
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ASTM D2798-99(2004)
Standard Test Method for Microscopical Determination of the Reflectance of Vitrinite in a Polished Specimen of Coal- Historical Version
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ASTM D2798-99
Standard Test Method for Microscopical Determination of the Reflectance of Vitrinite in a Polished Specimen of Coal- Historical Version