ASTM-D5671:2020 Edition

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D5671-20 Standard Practice for Polishing and Etching Coal Samples for Microscopical Analysis by Reflected Light

Published By	Publication Date	Number of Pages
ASTM	2020

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Category: ASTM

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Description

ASTM D5671-20

Active Standard: Standard Practice for Polishing and Etching Coal Samples for Microscopical Analysis by Reflected Light

ASTM D5671

Scope

1.1 This practice covers laboratory procedures for preparing an etched, polished surface of granular and block samples of coal for examination with a microscope using reflected light illumination.

1.2 Units—The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered 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.

Keywords

coal microscopical analysis; etching; polishing ;

ICS Code

ICS Number Code 73.040 (Coals)

DOI: 10.1520/D5671-20

Additional information

Standard Title	D5671-20 Standard Practice for Polishing and Etching Coal Samples for Microscopical Analysis by Reflected Light
Published Code	ASTM
Publication Date	2020