• ASTM D2797/D2797M-21

ASTM D2797/D2797M-21

Standard Practice for Preparing Coal Samples for Microscopical Analysis by Reflected Light

ASTM International, 05/15/2021

Publisher: ASTM

File Format: PDF

$31.00$62.00


Published:15/05/2021

Pages:5

File Size:1 file , 150 KB

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1.1''This 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.

1.2''Units'''The values stated in either SI units or non-SI units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.

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.

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