ASTM-D5263 1993

$35.75

D5263-93e1 Standard Test Method for Determining the Relative Degree of Oxidation in Bituminous Coal by Alkali Extraction

Published By	Publication Date	Number of Pages
ASTM	1993	3

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Description

ASTM D5263-93e1

Historical Standard: Standard Test Method for Determining the Relative Degree of Oxidation in Bituminous Coal by Alkali Extraction

ASTM D5263

Scope

1.1 This colorimetric method describes the determination of the relative degree of oxidation by alkali extraction of coals that are high volatile A bituminous to low volatile bituminous in rank.

1.2 This test cannot be sensitive to thermally oxidized coal. It is intended for coals that may be oxidized as a result of weathering.

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.

1.4 The values stated in SI units shall be regarded as standard.

Keywords

absorbance; alkali extraction; colorimetric; humic acids; oxidation (weathering); transmittance

ICS Code

ICS Number Code n/a

DOI: 10.1520/D5263-93E01

Additional information

Standard Title	D5263-93e1 Standard Test Method for Determining the Relative Degree of Oxidation in Bituminous Coal by Alkali Extraction
Published Code	ASTM
Publication Date	1993
Pages Count	3