ASTM D 2797/D2797M : 2011 : REV A : R2019
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Standard Practice for Preparing Coal Samples for Microscopical Analysis by Reflected Light
Hardcopy , PDF
27-05-2020
English
01-11-2019
Important note : All end users must be registered with an Account prior to user licenses being assigned.| Committee |
D 05
|
| DocumentType |
Standard Practice
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| Pages |
5
|
| PublisherName |
American Society for Testing and Materials
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| Status |
Superseded
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| SupersededBy | |
| Supersedes |
1.1This practice covers laboratory procedures for the preparation of granular samples of bituminous coal and anthracite samples for examination with a microscope using reflected light illumination. It does not apply to the preparation of oriented blocks of coal.
1.2The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.3This 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.
1.4This 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.
| ASTM D 2798 : 2011 : REV A | Standard Test Method for Microscopical Determination of the Vitrinite Reflectance of Coal |
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