ASTM D5263-15 PDF

Scope: 5.1 This test method is a relative measure of the degree of oxidation present in coal. It does not determine the quantitative amount of oxidized coal present. It is only intended to serve as a guide to the supplier, buyer, and user for selecting coals for metallurgical use.

Note 1: Lower rank bituminous coals are more easily extracted than higher rank coal.

1.1 This colorimetric test 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 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.4 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.

ASTM D5263-15 Referenced Document

ASTM D1193 Standard Specification for Reagent Water
ASTM D7448 Standard Practice for Establishing the Competence of Laboratories Using ASTM Procedures in the Sampling and Analysis of Coal and Coke*， 2024-04-20 Update

2023 ASTM D5263-23 Standard Test Method for Determining the Relative Degree of Oxidation in Bituminous Coal by Alkali Extraction
2021 ASTM D5263-21 Standard Test Method for Determining the Relative Degree of Oxidation in Bituminous Coal by Alkali Extraction
2015 ASTM D5263-15 Standard Test Method for Determining the Relative Degree of Oxidation in Bituminous Coal by Alkali Extraction
2008 ASTM D5263-08 Standard Test Method for Determining the Relative Degree of Oxidation in Bituminous Coal by Alkali Extraction
1993 ASTM D5263-93(2008)e1 Standard Test Method for Determining the Relative Degree of Oxidation in Bituminous Coal by Alkali Extraction
1993 ASTM D5263-93(2008) Standard Test Method for Determining the Relative Degree of Oxidation in Bituminous Coal by Alkali Extraction
1993 ASTM D5263-93(2001) Standard Test Method for Determining the Relative Degree of Oxidation in Bituminous Coal by Alkali Extraction
1993 ASTM D5263-93e1 Standard Test Method for Determining the Relative Degree of Oxidation in Bituminous Coal by Alkali Extraction