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Homepage>ASTM Standards>73>73.040>ASTM D0720_D0720M-22 - Standard Test Method for Free-Swelling Index of Coal
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Released: 01.09.2022

ASTM D0720_D0720M-22 - Standard Test Method for Free-Swelling Index of Coal

Standard Test Method for Free-Swelling Index of Coal

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Standard number:D0720_D0720M-22
Keywords:caking characteristic; coal; free-swelling index;

1.1 This test method2 is a small-scale, empirical test for obtaining information regarding the free-swelling properties of a coal. The results may be used as an indication of the caking characteristic of the coal when burned as a fuel. This test is not recommended as a method for the determination of expansion of coals in coke ovens.

1.2 Units—The values stated in either SI units or non-SI units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.

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.