ASTM D5263-21 PDF

Scope: 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 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. 1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 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.

ASTM D5263-21 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*， 2024-04-22 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