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Standard Practice for Collection of Coal Samples from Core
Automaticky preložený názov:
Štandardné praktiky na zhromažďovanie vzoriek uhlie z jadra
NORMA vydaná dňa 1.9.2015
Označenie normy: ASTM D5192-09(2015)
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.9.2015
Kód tovaru: NS-616485
Počet strán: 5
Približná hmotnosť: 15 g (0.03 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
borehole samples, coal, coal rank, core, core samples, floor, roof,, ICS Number Code 73.040 (Coals)
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. |
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1. 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. |
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2. Referenced Documents | ||||||||||||||
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