ASTM D2013/D2013M-12

Standard Practice for Preparing Coal Samples for Analysis

SIGNIFICANCE AND USE
Other standards are used to collect the gross sample: Practice D2234/D2234M allows for one division of the gross sample before crushing. The mass and top size of the gross or divided sample collected by using these guides and practices are usually too large for chemical or physical testing. Practice D2013 provide instructions for reducing and dividing the gross or divided sample, by on-line or off-line processes, or both, to a top size and mass suitable to the performance of testing. Any bias in the gross or divided sample before adherence to this practice will remain in the final sample resulting from use of this practice. Therefore, carefully select the standard to be used to collect the gross sample.
Division and reduction of a sample may occur at more than one location. Most often, the sample is collected, reduced, and divided (one or more times) by use of a mechanical sampling system. The remaining sample may be further divided on-site to facilitate transporting it to the laboratory where further reduction and division likely occurs before analysis.
In places, this practice requires air drying the sample before subsequent reduction. Procedures for air drying and air-dry loss determination are provided in Test Method D3302.
Most often, samples are reduced and divided to an analysis sample. However, some tests may require a sample of different mass or top size. This procedure may be used to provide a sample of any mass and size consist from the gross or divided sample to, and including, the analysis sample.
This practice also specifies how to prepare composite samples, if required.
SCOPE
1.1 This practice 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.
1.2 Reduction and division procedures are prescribed for coals of the following groups:
1.2.1 Group A includes coals that have been cleaned in all sizes.
1.2.2 Group B includes all other coals. Unknown coals are to be considered under Group B.
1.2.3 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.
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.4 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-Mar-2012
• ICS: 73.040 - Coals
• Technical Committee: D05 - Coal and Coke
• Drafting Committee: D05.23 - Sampling

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: D2013/D2013M − 12
Standard Practice for
1
Preparing Coal Samples for Analysis
This standard is issued under the fixed designation D2013/D2013M; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope 2. Referenced Documents
2 3
1.1 This practice covers the reduction and division of gross 2.1 ASTM Standards:
or divided samples, and the preparation of composite samples, D121 Terminology of Coal and Coke
up to and including the individual portions for laboratory D2234/D2234M Practice for Collection of a Gross Sample
analysis. of Coal
D3174 Test Method for Ash in the Analysis Sample of Coal
1.2 Reduction and division procedures are prescribed for
and Coke from Coal
coals of the following groups:
D3302 Test Method for Total Moisture in Coal
1.2.1 Group A includes coals that have been cleaned in all
D4749 Test Method for Performing the Sieve Analysis of
sizes.
Coal and Designating Coal Size
1.2.2 Group B includes all other coals. Unknown coals are
E11 Specification for Woven Wire Test Sieve Cloth and Test
to be considered under Group B.
Sieves
1.2.3 Group A allows smaller weight laboratory samples to
E177 Practice for Use of the Terms Precision and Bias in
beretainedthanGroupB.Theselowerweightsmaybeusedfor
ASTM Test Methods
particular coals if they have been shown, by using the
E456 Terminology Relating to Quality and Statistics
procedures of Annex A1.2, to give a sample preparation and
analysis variance which is no more than 20 % of the total
3. Terminology
analysis variance.
3.1 Definitions of Terms Specific to This Standard—No
1.3 The values stated in either SI units or inch-pound units
terms are used which are specific to this practice. Many terms
are to be regarded separately as standard. The values stated in
used in this practice may be found in Terminologies D121 and
each system may not be exact equivalents; therefore, each
E456 and in Practice E177.
system shall be used independently of the other. Combining
4. Summary of Practice
values from the two systems may result in non-conformance
with the standard.
4.1 Three processes of sample division and reduction are
covered as follows:
1.4 This standard does not purport to address all of the
4.1.1 Procedure A—Manual riffles are used for division of
safety concerns, if any, associated with its use. It is the
the sample and mechanical crushing equipment for the reduc-
responsibility of the user of this standard to establish appro-
tion of the sample.
priate safety and health practices and determine the applica-
4.1.2 Procedure B—Mechanical sample dividers are used
bility of regulatory limitations prior to use.
for the division of the sample and mechanical crushing
equipment for the reduction of the sample.
1
This practice is under the jurisdiction of ASTM Committee D05 on Coal and
4.1.3 Combined Procedure A and B—The two procedures
Coke and is the direct responsibility of Subcommittee D05.23 on Sampling.
may be combined at any stage.
Current edition approved April 1, 2012. Published June 2012. Originally
approved in 1962. Last previous edition approved in 2011 as D2013/D2013M – 11.
3
DOI: 10.1520/D2013_D2013M-12. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
2
For more detailed explanation of this practice see Keller, G. E., “Determination contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
of Quantities Needed in Coal Sample Preparation and Analysis,” Transactions,Vol Standards volume information, refer to the standard’s Document Summary page on
232, 1965, pp. 218-226. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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D2013/D2013M − 12
5. Significance and Use bucket cutter with either bottom dump or inverting discharge,
slotted belt, rotary disk divider, mechanical stopped or moving
5.1 Other standards are used to collect the gross sample:
belt sweeper, or other acceptable devices for dividing the
Practice D2234/D2234M allows for one division of the gross
sample. Typical mechanical sample dividers are shown in Fig.
sample before crushing. The mass and top size of the gross or
1.Theseillustratevariousdesigns,butotheracceptabledesigns
divided sample collected by using these guides and practices
are available.
are usually too large for chemical or physical testing. Practice
6.2.2 Riffle—A manual sample divider that splits the coal
D2013 provide instructions for reducing a
...

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:D2013/D2013M–11 Designation:D2013/D2013M–12
Standard Practice for
1
Preparing Coal Samples for Analysis
This standard is issued under the fixed designation D2013/D2013M; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope
2
1.1 This practice 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.
1.2 Reduction and division procedures are prescribed for coals of the following groups:
1.2.1 Group A includes coals that have been cleaned in all sizes.
1.2.2 Group B includes all other coals. Unknown coals are to be considered under Group B.
1.2.3 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.
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the
two systems may result in non-conformance with the standard.
1.4 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
3
2.1 ASTM Standards:
D121 Terminology of Coal and Coke
D2234/D2234M Practice for Collection of a Gross Sample of Coal
D3174 Test Method for Ash in the Analysis Sample of Coal and Coke from Coal
D3302 Test Method for Total Moisture in Coal
D4749 Test Method for Performing the Sieve Analysis of Coal and Designating Coal Size
E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E456 Terminology Relating to Quality and Statistics
3. Terminology
3.1 Definitions of Terms Specific to This Standard—No terms are used which are specific to this practice. Many terms used in
this practice may be found in Terminologies D121 and E456 and in Practice E177.
4. Summary of Practice
4.1 Three processes of sample division and reduction are covered as follows:
4.1.1 Procedure A—Manual riffles are used for division of the sample and mechanical crushing equipment for the reduction of
the sample.
4.1.2 Procedure B—Mechanical sample dividers are used for the division of the sample and mechanical crushing equipment for
the reduction of the sample.
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 JuneApril 1, 2011.2012. Published July 2011.June 2012. Originally approved in 1962. Last previous edition approved in 20092011 as
D2013/D2013M–09.D2013/D2013M – 11. DOI: 10.1520/D2013_D2013M-112.
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.
3
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.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
D2013/D2013M–12
4.1.3 Combined Procedure A and B—The two procedures may be combined at any stage.
5. Significance and Use
5.1 Other standards are used to collect the gross sample: Practice D2234/D2234M allows for one division of the gross sample
before crushing. The mass and top size of the gross or divided sample collected by using these guides and practices are usually
too large for chemical or physical testing. Practice D2013 provide instructions for reducing and dividing the gross or divided
samp
...