ASTM D5192-09

Standard Practice for Collection of Coal Samples from Core

SIGNIFICANCE AND USE
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 D 388, 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.  
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 D 1412.
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.

General Information

• Status: Historical
• Publication Date: 31-May-2009
• ICS: 73.040 - Coals
• Technical Committee: D05 - Coal and Coke

Relations

• Replaces: ASTM D5192-08 - Standard Practice for Collection of Coal Samples from Core
• Effective Date: 01-Jun-2009
• Referred By: ASTM D5671-20 - Standard Practice for Polishing and Etching Coal Samples for Microscopical Analysis by Reflected Light
• Effective Date: 01-Jun-2009
• Referred By: ASTM D4596-22 - Standard Practice for Collection of Channel Samples of Coal in a Mine
• Effective Date: 01-Jun-2009
• Referred By: ASTM D3176-15 - Standard Practice for Ultimate Analysis of Coal and Coke
• Effective Date: 01-Jun-2009
• Referred By: ASTM D3172-13(2021)e1 - Standard Practice for Proximate Analysis of Coal and Coke
• Effective Date: 01-Jun-2009
• Referred By: ASTM D121-15 - Standard Terminology of Coal and Coke
• Effective Date: 01-Jun-2009
• Referred By: ASTM D6796-21e1 - Standard Practice for Production of Coal, Coke and Coal Combustion Samples for Interlaboratory Studies
• Effective Date: 01-Jun-2009
• Referred By: ASTM D388-23 - Standard Classification of Coals by Rank
• Effective Date: 01-Jun-2009
• Referred By: ASTM D7569/D7569M-10(2015)e1 - Standard Practice for Determination of Gas Content of Coal—Direct Desorption Method
• Effective Date: 01-Jun-2009

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D5192 − 09
StandardPractice for
1
Collection of Coal Samples from Core
This standard is issued under the fixed designation D5192; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 3.1.2 borehole, n—the circular hole through soil and rock
strata made by boring.
1.1 This practice describes procedures for collecting and
handling a coal sample from a core recovered from a borehole.
3.1.3 caves or washouts, n—zones of increased hole diam-
eter caused by rock fragments that fall from the walls of a
1.2 The values stated in SI units are to be regarded as
borehole and can block the hole or contaminate the cuttings
standard. No other units of measurement are included in this
standard. and which erode or abrade the sidewall of the borehole by the
action of the drilling. These zones can affect the accuracy of
1.3 This standard does not purport to address all of the
certain geophysical logs (especially density). Corrections to
safety concerns, if any, associated with its use. It is the
other geophysical logs can be made if a caliper log is available.
responsibility of the user of this standard to establish appro-
The most common causes of caves or washouts include soft or
priate safety and health practices and determine the applica-
fractured lithologies, the presence of water-producing zones,
bility of regulatory limitations prior to use.
and the downhole pressure of the drilling medium (fluid or air)
2. Referenced Documents
thatoftencausesdifferentialerosionofvariousstratawithinthe
2
2.1 ASTM Standards: borehole.
D121 Terminology of Coal and Coke
3.1.4 concretion, n—in a geological sense, a mass of min-
D388 Classification of Coals by Rank
eral matter found in rock of a composition different from its
D1412 Test Method for Equilibrium Moisture of Coal at 96
own and produced by deposition from aqueous solution in the
to 97 Percent Relative Humidity and 30°C
rock.
D2013 Practice for Preparing Coal Samples for Analysis
D2796 Terminology for Megascopic Description of Coal 3.1.5 core, n—in drilling, a cylindrical section of rock (coal)
and Coal Seams and Microscopical Description and
that is usually 5 to 10 cm in diameter, taken as part of the
3
Analysis of Coal (Withdrawn 1995)
interval penetrated by a core bit and brought to the surface for
D4371 Test Method for Determining the Washability Char-
geologic examination, representative sampling, and laboratory
acteristics of Coal
analyses.
D4596 Practice for Collection of Channel Samples of Coal
3.1.6 core barrels, n—two nested tubes above the bit of a
in a Mine
coredrill,theouterrotatingwiththebit,theinnerreceivingand
3. Terminology preserving a continuous section or core of the material pen-
etrated.Thefollowingtwotypesofinnerbarrelsarecommonly
3.1 Definitions:
used.
3.1.1 For additional definitions of terms, refer to Terminol-
ogy D121.
3.1.6.1 split-tube barrel, n—a type of inner barrel consisting
oftwolongitudinalhalvesofpipeboundtogetherbyreinforced
1
tape at intervals along the barrel length that allows easy access
This practice is under the jurisdiction of ASTM Committee D05 on Coal and
Coke and is the direct responsibility of Subcommittee D05.18 on Classification of
to a relatively intact core (by cutting the tape). (This is the
Coals.
preferred barrel type for coal exploration, when available.)
Current edition approved June 1, 2009. Published June 2009. Originally
approved in 1991. Last previous edition approved in 2008 as D5192 – 08. DOI:
3.1.6.2 solid-tube barrel, n—a type of inner barrel consist-
10.1520/D5192-09.
2 ing of a single solid-walled length of pipe in which removal of
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
the core is accomplished by mechanical or hydraulic pressure
Standards volume information, refer to the standard’s Document Summary page on
at one end of the pipe thus extruding the core onto a core tray.
the ASTM website.
3 (Thecoreislikelytobelessintactthanwhenasplit-tubebarrel
The last approved version of this historical standard is referenced on
www.astm.org. is used.)
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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D5192 − 09
3.1.7 core sample, n—that part of a core of rock or coal
obtained so as to accurately represent a thickness of a unit
penetrating by drilling.
1

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D5192 − 09
3.1.8 geophysical log, n—a graphic record of the measu
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:D5192–08 Designation: D 5192 – 09
Standard Practice for
1
Collection of Coal Samples from Core
This standard is issued under the fixed designation D 5192; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This practice describes procedures for collecting and handling a coal sample from a core recovered from a borehole.
1.2The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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.
2. Referenced Documents
2
2.1 ASTM Standards:
D 121 Terminology of Coal and Coke
D 388 Classification of Coals by Rank
D 1412 Test Method for Equilibrium Moisture of Coal at 96 to 97 Percent Relative Humidity and 30C
D 2013 Practice for Preparing Coal Samples for Analysis
D 2796 Terminology Relating to Megascopic Description of Coal and Coal Seams and Microscopical Description andAnalysis
3
of Coal
D 4371 Test Method for Determining the Washability Characteristics of Coal
D 4596 Practice for Collection of Channel Samples of Coal in a Mine
3. Terminology
3.1 Definitions—For additional definitions of terms, refer to Terminology D 121.
3.1.1 borehole, n—the circular hole through soil and rock strata made by boring.
3.1.2 caves or washouts, n—zones of increased hole diameter caused by rock fragments that fall from the walls of a borehole
and can block the hole or contaminate the cuttings and which erode or abrade the sidewall of the borehole by the action of the
drilling.These zones can affect the accuracy of certain geophysical logs (especially density). Corrections to other geophysical logs
can be made if a caliper log is available. The most common causes of caves or washouts include soft or fractured lithologies, the
presence of water-producing zones, and the downhole pressure of the drilling medium (fluid or air) that often causes differential
erosion of various strata within the borehole.
3.1.3 concretion, n—in a geological sense, a mass of mineral matter found in rock of a composition different from its own and
produced by deposition from aqueous solution in the rock.
3.1.4 core, n—in drilling, a cylindrical section of rock (coal) that is usually 5 to 10 cm in diameter, taken as part of the interval
penetrated by a core bit and brought to the surface for geologic examination, representative sampling, and laboratory analyses.
3.1.5 core barrels, n—two nested tubes above the bit of a core drill, the outer rotating with the bit, the inner receiving and
preserving a continuous section or core of the material penetrated. The following two types of inner barrels are commonly used.
3.1.5.1 split-tube barrel, n—a type of inner barrel consisting of two longitudinal halves of pipe bound together by reinforced
tape at intervals along the barrel length that allows easy access to a relatively intact core (by cutting the tape). (This is the preferred
barrel type for coal exploration, when available.)
3.1.5.2 solid-tube barrel, n—a type of inner barrel consisting of a single solid-walled length of pipe in which removal of the
core is accomplished by mechanical or hydraulic pressure at one end of the pipe thus extruding the core onto a core tray. (The core
1
This practice is under the jurisdiction of ASTM Committee D05 on Coal and Coke and is the direct responsibility of Subcommittee D05.18 on Classification of Coals.
Current edition approved MayJune 1, 2008.2009. Published May 2008.June 2009. Originally approved in 1991. Last previous edition approved in 20072008 as
D 5192 – 078.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Withdrawn.
3
Withdrawn. The last approved version of this historical standard is referenced on www.astm.org.
Copyright © ASTM International, 100 Barr Harbor D
...