ASTM-D5263 Historical Revision Information
Standard Test Method for Determining the Relative Degree of Oxidation in Bituminous Coal by Alkali Extraction

ASTM-D5263 - 1992 EDITION - SUPERSEDED
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Standard Test Method for Determining the Relative Degree of Oxidation in Bituminous Coal by Alkali Extraction
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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 Number Code 73.040 (Coals)

To find similar documents by ASTM Volume:

05.06 (Gaseous Fuels; Coal and Coke)

To find similar documents by classification:

73.040 (Coals Including lignites Coal products, see 75.160.10)

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Document Number

ASTM-D5263-92

Revision Level

1992 EDITION

Status

Superseded

Publication Date

July 15, 1992

Document Type

Test Method

Page Count

2 pages

Committee Number

D05.15