ASTM-D5192 › Historical Revision Information
Standard Practice for Collection of Coal Samples from Core
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Scope
1.1 This practice describes procedures for collecting and handling a coal sample from a core recovered from a borehole.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
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.
Significance and Use
5.1 A properly collected sample that includes the total coal bed interval provides a sample that is a representative cross section of the coal bed at the point of sampling. Core samples are taken for subsequent testing needed for evaluation of coal quality and characterization for commercial evaluations, for planning of mining operations to maintain coal quality, for the determination of coal rank in accordance with Classification D388, and for geologic coal resource studies.
Note 1: Because of the potential for lateral variability, a sample may not represent the quality of the coal bed at another sample point. The reliability of the data generated from core samples is dependent on the number and spacing of the sample points and the variability of the coal characteristics in a given area.
5.2 Moisture determined directly from a core sample shall be considered questionable in any core sample because of possible contamination from drilling fluids and groundwater. If a more representative estimate of the inherent moisture content of the core sample (with the exception of certain low-rank coals) is desired, the sample should be analyzed according to Test Method D1412.
Keywords
borehole samples; coal; coal rank; core; core samples; floor; roof;
To find similar documents by ASTM Volume:
05.06 (Gaseous Fuels; Coal and Coke)
To find similar documents by classification:
73.040 (Coals Including lignites Coal products, see 75.160.10)
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Document Number
ASTM-D5192-09(2015)
Revision Level
2009 R15 EDITION
Status
Superseded
Modification Type
Reapproval
Publication Date
Oct. 1, 2015
Document Type
Practice
Page Count
5 pages
Committee Number
D05.23