显微测定煤的镜质体反射的标准试验方法

详细信息   

• 中文主题词：煤 ; 煤素质 ; 显微术 ; 等级 ; 反射率 ; 镜质 ; 无烟煤 ; 烟煤 ; 褐煤 ; 平均最大反射比
• 标准号：ASTM D2798-2011
• 发布日期：2011
• 英文题名：Standard Test Method for Microscopical Determination of the Vitrinite Reflectance of Coal
• 英文主题词：coal ; maceral ; microscopy ; rank ; reflectance ; vitrinite ; Anthracite ; Bituminous coal ; Lignite ; Maceral ; Mean maximum reflectance ; Microscopic examination--coal ; Photometry ; Rank ; Reflectance and reflectivity--coal ; Vitrinite
• 标准状态：现行
• 发布单位：US-ASTM
• 国际标准分类号：71.060.10 (Chemical elements)
• 载体形态：5P.;A4
• 中国标准分类号：D21
• 国别：美国材料与试验协会

文摘

The mean maximum reflectance of the vitrinite component in coal as determined by this test method is often used as an indicator of rank as presented in Classification D388, independent of petrographic composition, and in the characterization of coal as feedstock for carbonization, gasification, liquefaction, and combustion processes.

This test method is for use in scientific and industrial research.

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 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.