ASTM D441 - 07(2019)e1 - Standard Test Method of Tumbler Test for Coal

ASTM D441 - 07(2019)e1

Standard Test Method of Tumbler Test for Coal

Status : Current   Published : November 2019

Format
PDF

Format
HARDCOPY



1.1 This test method covers the determination of the relative friability of a particular size of sized coal. It affords a means of measuring the liability of coal to break into smaller pieces when subjected to repeated handling at the mine or subsequently, by the distributor or by the consumer. This test method is serviceable for ascertaining the similarity of coals in respect to friability rather than for determining values within narrow limits to emphasize their dissimilarity. This test method also may serve to indicate the relative extent to which sized coals will suffer size degradation in certain mechanical feed devices. This test method may be used for differentiating between certain ranks and grades of coal, and therefore the test method is of service for coal classification purposes.

1.2 The values stated in inch-pound units shall be regarded as the standard. Mass may be expressed in metric values.

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.




Standard NumberASTM D441 - 07(2019)e1
TitleStandard Test Method of Tumbler Test for Coal
StatusCurrent
Publication Date01 November 2019
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)No other standards are informatively referenced
Descriptors breakage, coal, coal handling, friability, size stability, tumbler
ICS73.040
PublisherASTM
FormatA4
DeliveryYes
Pages4
File Size123 KB
Price£36.00


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