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About This Item
Full Description
1.1 This practice covers the reduction and division of gross or divided samples, and the preparation of composite samples, up to and including the individual portions for laboratory analysis.
1.2 Reduction and division procedures are prescribed for coals of the following groups:
1.2.1 Group A includes coals that have been cleaned in all sizes.
1.2.2 Group B includes all other coals. Unknown coals are to be considered under Group B.
1.2.3 Group A allows smaller weight laboratory samples to be retained than Group B. These lower weights may be used for particular coals if they have been shown, by using the procedures of Annex A1.2, to give a sample preparation and analysis variance which is no more than 20 % of the total analysis variance.
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the 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.
Document History
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ASTM D2013/D2013M-21
Standard Practice for Preparing Coal Samples for Analysis- Most Recent
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ASTM D2013/D2013M-20
Standard Practice for Preparing Coal Samples for Analysis- Historical Version
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ASTM D2013/D2013M-18
Standard Practice for Preparing Coal Samples for Analysis- Historical Version
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ASTM D2013/D2013M-12
Standard Practice for Preparing Coal Samples for Analysis- Historical Version
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ASTM D2013/D2013M-12
viewing
Standard Practice for Preparing Coal Samples for Analysis- Historical Version
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ASTM D2013/D2013M-11
Standard Practice for Preparing Coal Samples for Analysis- Historical Version
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ASTM D2013/D2013M-09
Standard Practice for Preparing Coal Samples for Analysis- Historical Version
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ASTM D2013-07
Standard Practice for Preparing Coal Samples for Analysis- Historical Version
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ASTM D2013-04
Standard Practice of Preparing Coal Samples for Analysis- Historical Version
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ASTM D2013-03
Standard Practice of Preparing Coal Samples for Analysis- Historical Version
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ASTM D2013-01
Standard Practice of Preparing Coal Samples for Analysis- Historical Version
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ASTM D2013-00ae1
Standard Practice of Preparing Coal Samples for Analysis- Historical Version
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ASTM D2013-00a
Standard Practice of Preparing Coal Samples for Analysis- Historical Version
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ASTM D2013-00
Standard Practice of Preparing Coal Samples for Analysis- Historical Version
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ASTM D2013-72
Standard Method Of Preparing Coal Samples For Analysis- Historical Version