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ASTM D2013

2007 Edition, June 1, 2007

Complete Document

Standard Practice for Preparing Coal Samples for Analysis



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Superseded By: ASTM D2013/D2013M

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W/D S/S BY ASTM D2013/D2013M
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Product Details:

  • Revision: 2007 Edition, June 1, 2007
  • Published Date: June 1, 2007
  • Status: Superseded By:
  • Superseded By: ASTM D2013/D2013M
  • Document Language: English
  • Published By: ASTM International (ASTM)
  • Page Count: 11
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

This practice2 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.

Reduction and division procedures are prescribed for coals of the following groups:

Group A includes coals that have been cleaned in all sizes.

Group B includes all other coals. Unknown coals are to be considered under Group B.

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.

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.

The values stated in SI units are to be regarded as standard. The values given in parentheses are provided for information purposes only.

2 For more detailed explanation of this practice see Keller, G. E., "Determination of Quantities Needed in Coal Sample Preparation and Analysis," Transactions, Vol 232, 1965, pp. 218-226.