ASTM D5192/D5192M-22

Standard Practice for Collection of Coal Samples from Core

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.
SCOPE
1.1 This practice describes procedures for collecting and handling a coal sample from a core recovered from a borehole.  
1.2 Units—The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Published
• Publication Date: 14-May-2022
• ICS: 73.040 - Coals
• Technical Committee: D05 - Coal and Coke
• Drafting Committee: D05.23 - Sampling

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D5192/D5192M − 22
Standard Practice for
1
Collection of Coal Samples from Core
This standard is issued under the fixed designation D5192/D5192M; 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* D4371 Test Method for Determining the Washability Char-
acteristics of Coal
1.1 This practice describes procedures for collecting and
D4596 Practice for Collection of Channel Samples of Coal
handling a coal sample from a core recovered from a borehole.
in a Mine
1.2 Units—The values stated in either SI units or inch-
pound units are to be regarded separately as standard. The
3. Terminology
values stated in each system are not necessarily exact equiva-
3.1 Definitions:
lents; therefore, to ensure conformance with the standard, each
3.1.1 For additional definitions of terms, refer to Terminol-
system shall be used independently of the other, and values
ogy D121.
from the two systems shall not be combined.
3.1.2 borehole, n—the circular hole through soil and rock
1.3 This standard does not purport to address all of the
strata made by boring.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- 3.1.3 caves or washouts, n—zones of increased hole diam-
eter caused by rock fragments that fall from the walls of a
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use. borehole and can block the hole or contaminate the cuttings
and which erode or abrade the sidewall of the borehole by the
1.4 This international standard was developed in accor-
dance with internationally recognized principles on standard- action of the drilling. These zones can affect the accuracy of
certain geophysical logs (especially density). Corrections to
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom- other geophysical logs can be made if a caliper log is available.
The most common causes of caves or washouts include soft or
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee. fractured lithologies, the presence of water-producing zones,
and the downhole pressure of the drilling medium (fluid or air)
thatoftencausesdifferentialerosionofvariousstratawithinthe
2. Referenced Documents
2 borehole.
2.1 ASTM Standards:
3.1.4 concretion, n—in a geological sense, a mass of min-
D121 Terminology of Coal and Coke
D388 Classification of Coals by Rank eral matter found in rock of a composition different from its
own and produced by deposition from aqueous solution in the
D1412 Test Method for Equilibrium Moisture of Coal at 96
to 97 Percent Relative Humidity and 30 °C rock.
D2013/D2013M Practice for Preparing Coal Samples for
3.1.5 core, n—in drilling,acylindricalsectionofrock(coal)
Analysis
that is usually 5 to 10 cm in diameter, taken as part of the
D2796 Terminology for Megascopic Description of Coal
interval penetrated by a core bit and brought to the surface for
and Coal Seams and Microscopical Description and
geologic examination, representative sampling, and laboratory
3
Analysis of Coal (Withdrawn 1995)
analyses.
3.1.6 core barrels, n—two nested tubes above the bit of a
coredrill,theouterrotatingwiththebit,theinnerreceivingand
1
This practice is under the jurisdiction of ASTM Committee D05 on Coal and
preserving a continuous section or core of the material pen-
Coke and is the direct responsibility of Subcommittee D05.23 on Sampling.
etrated.Thefollowingtwotypesofinnerbarrelsarecommonly
Current edition approved May 15, 2022. Published June 2022. Originally
approved in 1991. Last previous edition approved in 2015 as D5192 – 09(2015).
used.
DOI: 10.1520/D5192_D5192M-22.
2
3.1.6.1 split-tube barrel, n—a type of inner barrel consisting
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
oftwolongitudinalhalvesofpipeboundtogetherbyreinforced
Standards volume information, refer to the standard’s Document Summary page on
tape at intervals along the barrel length that allows easy access
the ASTM website.
3
to a relatively intact core (by cutting the tape). (This is the
The last approved version of this historical standard is referenced on
www.astm.org. preferred barrel type for coal exploration, when available.)
*A Summary of Changes section appe
...

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 − 09 (Reapproved 2015) D5192/D5192M − 22
Standard Practice for
1
Collection of Coal Samples from Core
This standard is issued under the fixed designation D5192;D5192/D5192M; 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 Scope*
1.1 This practice describes procedures for collecting and handling a coal sample from a core recovered from a borehole.
1.2 Units—The values stated in either SI units or inch-pound units are to be regarded as standard. No other units of measurement
are included in this standard.separately as standard. The values stated in each system are not necessarily exact equivalents;
therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two
systems shall not be combined.
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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
D121 Terminology of Coal and Coke
D388 Classification of Coals by Rank
D1412 Test Method for Equilibrium Moisture of Coal at 96 to 97 Percent Relative Humidity and 30 °C
D2013D2013/D2013M Practice for Preparing Coal Samples for Analysis
D2796 Terminology for Megascopic Description of Coal and Coal Seams and Microscopical Description and Analysis of Coal
3
(Withdrawn 1995)
D4371 Test Method for Determining the Washability Characteristics of Coal
D4596 Practice for Collection of Channel Samples of Coal in a Mine
3. Terminology
3.1 Definitions:
3.1.1 For additional definitions of terms, refer to Terminology D121.
3.1.2 borehole, n—the circular hole through soil and rock strata made by boring.
1
This practice is under the jurisdiction of ASTM Committee D05 on Coal and Coke and is the direct responsibility of Subcommittee D05.23 on Sampling.
Current edition approved Sept. 1, 2015May 15, 2022. Published September 2015June 2022. Originally approved in 1991. Last previous edition approved in 20092015 as
D5192 – 09.D5192 – 09(2015). DOI: 10.1520/D5192-09R15.10.1520/D5192_D5192M-22.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM 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
The last approved version of this historical standard is referenced on www.astm.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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D5192/D5192M − 22
3.1.3 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.
3.1.4 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.
3.1.5 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.
3.1.6 core
...