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1.1 This practice covers the reduction and division of gross or divided 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 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.
1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses are provided for information purposes only.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D121 Terminology of Coal and Coke
D2234/D2234M Practice for Collection of a Gross Sample of Coal
D3174 Test Method for Ash in the Analysis Sample of Coal and Coke from Coal
D3302 Test Method for Total Moisture in Coal
D4749 Test Method for Performing the Sieve Analysis of Coal and Designating Coal Size
E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E456 Terminology Relating to Quality and Statistics
ICS Number Code 73.040 (Coals)
UNSPSC Code 15101601(Coal)
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ASTM D2013-00ae1, Standard Practice of Preparing Coal Samples for Analysis, ASTM International, West Conshohocken, PA, 2001, www.astm.orgBack to Top