ASTM D720-91(1999)
Standard Test Method for Free-Swelling Index of Coal

Standard No.
ASTM D720-91(1999)
Release Date
1991
Published By
American Society for Testing and Materials (ASTM)
Status
Replace By
ASTM D720-91(2004)
Latest
ASTM D720/D720M-23
Scope

1.1 This test method is a small-scale 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 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.3 This standard does not purport to address all of the safety problems, 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 D720-91(1999) history




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