ASTM D2234/D2234M-20

Standard Practice for Collection of a Gross Sample of Coal

SIGNIFICANCE AND USE
5.1 It is intended that this practice be used to provide a sample representative of the coal from which it is collected. Because of the variability of coal and the wide variety of sampling equipment, caution should be used in all stages of sampling, from system specifications and equipment procurement to equipment acceptance testing and actually taking the final sample.  
5.2 After further processing (Practice D2013/D2013M), the sample may be analyzed for a number of different parameters. These parameters may affect the lot's value, its ability to meet specifications, its environmental impact, as well as other properties.
SCOPE
1.1 This practice covers procedures for the collection of a sample under various conditions of sampling and directs the user to the appropriate ASTM standard for that sampling condition. The sample is to be crushed and further prepared for analysis in accordance with Practice D2013/D2013M. However, the procedures for dividing large samples before any crushing are given in this practice.  
1.2 This practice describes general and special purpose sampling procedures for coals (1) by size and condition of preparation (for example, mechanically cleaned coal or raw coal) and (2) by sampling characteristics.  
1.3 Units—The values stated in either SI units or non-SI 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.  
1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 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: 31-Mar-2020
• 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: D2234/D2234M − 20
Standard Practice for
1
Collection of a Gross Sample of Coal
This standard is issued under the fixed designation D2234/D2234M; 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.
INTRODUCTION
Data obtained from coal samples are used in establishing price, controlling mine and cleaning plant
operations, allocating production costs, and determining plant or component efficiency. The task of
obtaining a sample of reasonable mass to represent an entire lot presents a number of problems and
emphasizes the necessity for using standard sampling procedures.
Coal is one of the most difficult of materials to sample, varying in composition from noncombus-
tible particles to those which can be burned completely, with all gradations in between. The task is
further complicated by the use of the analytical results, the sampling equipment available, the quantity
to be represented by the sample, and the degree of precision required.
This practice gives the overall requirements for the collection of coal samples. The wide varieties
ofcoal-handlingfacilitiesprecludethepublicationofdetailedproceduresforeverysamplingsituation.
The proper collection of the sample involves an understanding and consideration of the physical
character of the coal, the number and mass of increments, and the overall precision required.
1. Scope priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
1.1 This practice covers procedures for the collection of a
1.5 This international standard was developed in accor-
sample under various conditions of sampling and directs the
dance with internationally recognized principles on standard-
user to the appropriate ASTM standard for that sampling
ization established in the Decision on Principles for the
condition.The sample is to be crushed and further prepared for
Development of International Standards, Guides and Recom-
analysis in accordance with Practice D2013/D2013M.
mendations issued by the World Trade Organization Technical
However, the procedures for dividing large samples before any
Barriers to Trade (TBT) Committee.
crushing are given in this practice.
2. Referenced Documents
1.2 This practice describes general and special purpose
2
sampling procedures for coals (1) by size and condition of 2.1 ASTM Standards:
preparation (for example, mechanically cleaned coal or raw D121 Terminology of Coal and Coke
coal) and (2) by sampling characteristics. D2013/D2013M Practice for Preparing Coal Samples for
Analysis
1.3 Units—The values stated in either SI units or non-SI
D4749 Test Method for Performing the Sieve Analysis of
units are to be regarded separately as standard. The values
Coal and Designating Coal Size
stated in each system are not necessarily exact equivalents;
D6609 Guide for Part-Stream Sampling of Coal
therefore, to ensure conformance with the standard, each
D6883 Practice for Manual Sampling of Stationary Coal
system shall be used independently of the other, and values
from Railroad Cars, Barges, Trucks, or Stockpiles
from the two systems shall not be combined.
D7430 Practice for Mechanical Sampling of Coal
1.4 This standard does not purport to address all of the
E456 Terminology Relating to Quality and Statistics
safety concerns, if any, associated with its use. It is the
3. Terminology
responsibility of the user of this standard to establish appro-
3.1 Definitions—Definitions applicable to this practice are
listed in Terminology D121.
1
This practice is under the jurisdiction of ASTM Committee D05 on Coal and
2
Coke and is the direct responsibility of Subcommittee D05.23 on Sampling. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved April 1, 2020. Published April 2020. Originally contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
approved in 1963. Last previous edition approved in 2019 as D2234/D2234M – 19. Standards volume information, refer to the standard’s Document Summary page on
DOI: 10.1520/D2234_D2234M-20. 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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D2234/D2234M − 20
3.2 Definitions of Terms Specific to This Standard: 3.2.9.1 Discussion—Given adequate information about the
3.2.1 accuracy, n— sample results obtaine
...

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: D2234/D2234M − 19 D2234/D2234M − 20
Standard Practice for
1
Collection of a Gross Sample of Coal
This standard is issued under the fixed designation D2234/D2234M; 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.
INTRODUCTION
Data obtained from coal samples are used in establishing price, controlling mine and cleaning plant
operations, allocating production costs, and determining plant or component efficiency. The task of
obtaining a sample of reasonable mass to represent an entire lot presents a number of problems and
emphasizes the necessity for using standard sampling procedures.
Coal is one of the most difficult of materials to sample, varying in composition from noncombus-
tible particles to those which can be burned completely, with all gradations in between. The task is
further complicated by the use of the analytical results, the sampling equipment available, the quantity
to be represented by the sample, and the degree of precision required.
This practice gives the overall requirements for the collection of coal samples. The wide varieties
of coal-handling facilities preclude the publication of detailed procedures for every sampling situation.
The proper collection of the sample involves an understanding and consideration of the physical
character of the coal, the number and mass of increments, and the overall precision required.
1. Scope
1.1 This practice covers procedures for the collection of a sample under various conditions of sampling and directs the user to
the appropriate ASTM standard for that sampling condition. The sample is to be crushed and further prepared for analysis in
accordance with Practice D2013/D2013M. However, the procedures for dividing large samples before any crushing are given in
this practice.
1.2 This practice describes general and special purpose sampling procedures for coals (1) by size and condition of preparation
(for example, mechanically cleaned coal or raw coal) and (2) by sampling characteristics.
1.3 Units—The values stated in either SI units or inch-poundnon-SI 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.
1.4 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, health, and environmental practices and determine the applicability of
regulatory limitations prior to use.
1.5 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
D2013/D2013M Practice for Preparing Coal Samples for Analysis
D4749 Test Method for Performing the Sieve Analysis of Coal and Designating Coal Size
D6609 Guide for Part-Stream Sampling of Coal
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 Dec. 1, 2019April 1, 2020. Published January 2020April 2020. Originally approved in 1963. Last previous edition approved in 20172019 as
D2234/D2234M – 17.D2234/D2234M – 19. DOI: 10.1520/D2234_D2234M-19.10.1520/D2234_D2234M-20.
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.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D2234/D2234M − 20
D6883 Practice for Manual Sampling of Stationary Coal from Railroad Cars, Barges, Trucks, or Stockpiles
D7430 Practice for Mechanical Sampling of Coal
E456 Terminology Relating to Quality and Statistics
3. Terminology
3.1 Definit
...