ASTM D4596-08
(Practice)Standard Practice for Collection of Channel Samples of Coal in a Mine
Standard Practice for Collection of Channel Samples of Coal in a Mine
SIGNIFICANCE AND USE
A properly collected face channel 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. Channel 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 channel samples is dependent on the number and spacing of the sample points and the variability of the coal characteristics in a given area.
Note 2—Sampling of the mine product for these purposes is unsatisfactory because of contamination of the product with out-of-seam material, selective mining of parts of a seam, inability to obtain samples from one or more specific locations in the mine, or other incompatibility of the purpose of sampling with the mining practice. Conversely, channel samples should not be used for evaluation of the quality of commercial shipments of the mine product, which should be sampled in accordance with Methods D 2234.
SCOPE
1.1 This practice describes procedures for collecting a coal sample from a channel extending from top to bottom in the face of a coal seam in a mine.
1.2 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. For specific precautionary information, see Note 2.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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Designation:D 4596–08
Standard Practice for
1
Collection of Channel Samples of Coal in a Mine
This standard is issued under the fixed designation D 4596; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 4. Significance and Use
1.1 This practice describes procedures for collecting a coal 4.1 A properly collected face channel sample that includes
samplefromachannelextendingfromtoptobottomintheface the total coal bed interval provides a sample that is a repre-
of a coal seam in a mine. sentative cross section of the coal bed at the point of sampling.
1.2 This standard does not purport to address all of the Channel samples are taken for subsequent testing needed for
safety concerns, if any, associated with its use. It is the evaluation of coal quality and characterization for commercial
responsibility of the user of this standard to establish appro- evaluations, for planning of mining operations to maintain coal
priate safety and health practices and determine the applica- quality, for the determination of coal rank in accordance with
bility of regulatory limitations prior to use. For specific Classification D 388, and for geologic coal resource studies.
precautionary information, see Note 2.
NOTE 1—Because of the potential for lateral variability, a sample may
1.3 The values stated in SI units are to be regarded as the
not represent the quality of the coal bed at another sample point. The
standard. The values given in parentheses are for information
reliability of the data generated from channel samples is dependent on the
only. number and spacing of the sample points and the variability of the coal
characteristics in a given area.
2. Referenced Documents
NOTE 2—Sampling of the mine product for these purposes is unsatis-
2 factory because of contamination of the product with out-of-seam mate-
2.1 ASTM Standards:
rial, selective mining of parts of a seam, inability to obtain samples from
D 121 Terminology of Coal and Coke
one or more specific locations in the mine, or other incompatibility of the
D 388 Classification of Coals by Rank
purpose of sampling with the mining practice. Conversely, channel
D 2234/D 2234M Practice for Collection of a Gross Sample
samples should not be used for evaluation of the quality of commercial
of Coal shipments of the mine product, which should be sampled in accordance
with Methods D 2234.
D 2796 Terminology Relating to Megascopic Description
of Coal and Coal Seams and Microscopical Description
5. Apparatus
3
and Analysis of Coal
5.1 Steel Measuring Tape, not less than3m(8ft) long.
D 4371 Test Method for Determining the Washability Char-
5.2 Miner’s Pick or Similar Tool, with file for sharpening.
acteristics of Coal
Other devices may be used such as a pneumatically operated
3. Summary of Practice
chain saw with tungsten carbide teeth.
5.3 Brush or Broom, for removing loose particles on the
3.1 At selected sites in the mine the face of the seam is
coal face.
cleaned of weathered coal and debris and the face is evened.A
5.4 Chalk.
channel of uniform horizontal cross section is cut from the coal
5.5 Sample Containers With Closures—If the sample is to
seam and the coal therefrom is collected for analysis and
be used for determination of inherent moisture, the container
testing.
shall be such that less than 0.05 % of the sample weight is lost
between the time of sealing the container with sample and the
1
This practice is under the jurisdiction of ASTM Committee D05 on Coal and
time of opening for preparation of the sample for analysis.
Coke and is the direct responsibility of Subcommittee D05.18 on Classification of
Coals.
Steelairtightcontainerswithpolyethylenebaglinershavebeen
Current edition approved May 1, 2008. Published May 2008. Originally
found to be satisfactory for this purpose. For other purposes,
publishedapprovedin1986.Lastpreviouseditionapprovedin2007asD 4596 – 07.
2 bags made of a strong cloth and lined with a polyethylene bag
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM may be suitable.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
3
Withdrawn.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
D 4596–08
5.6 Ground Cloth—Canvas tarpaulin or heavy-duty plastic 6.3 Sampling for Other Purposes—Variations in the pur-
sheet about 3 by 3 m (10 by 10 ft). If the purpose of sampling pose of sa
...
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:D 4596–07 Designation:D 4596–08
Standard Practice for
1
Collection of Channel Samples of Coal in a Mine
This standard is issued under the fixed designation D 4596; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This practice describes procedures for collecting a coal sample from a channel extending from top to bottom in the face of
a coal seam in a mine.
1.2 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. For specific precautionary information, see Note 2.
1.3The values stated in SI units are to be regarded as standard; inch-pound units, which are provided for information, are
approximations. .
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
2. Referenced Documents
2
2.1 ASTM Standards:
D 121 Terminology of Coal and Coke
D 388 Classification of Coals by Rank
D 2234/D 2234M Practice for Collection of a Gross Sample of Coal
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
3. Summary of Practice
3.1 At selected sites in the mine the face of the seam is cleaned of weathered coal and debris and the face is evened.Achannel
of uniform horizontal cross section is cut from the coal seam and the coal therefrom is collected for analysis and testing.
4. Significance and Use
4.1 Aproperly collected face channel 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. Channel 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 channel samples is dependent on the number and spacing of the sample points and the variability of the coal characteristics
in a given area.
NOTE 2—Sampling of the mine product for these purposes is unsatisfactory because of contamination of the product with out-of-seam material,
selective mining of parts of a seam, inability to obtain samples from one or more specific locations in the mine, or other incompatibility of the purpose
of sampling with the mining practice. Conversely, channel samples should not be used for evaluation of the quality of commercial shipments of the mine
product, which should be sampled in accordance with Methods D 2234.
5. Apparatus
5.1 Steel Measuring Tape, not less than3m(8ft) long.
5.2 Miner’s Pick or Similar Tool, with file for sharpening. Other devices may be used such as a pneumatically operated chain
saw with tungsten carbide teeth.
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 May 1, 2007.2008. Published May 2007.2008. Originally published approved in 1986. Last previous edition approved in 20042007 as
D4596–99(2004). D 4596 – 07.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Withdrawn.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
D 4596–08
5.3 Brush or Broom, for removing loose particles on the coal face.
5.4 Chalk.
5.5 Sample Containers With Closures —If the sample is to be used for determination of inherent moisture, the container shall
be such that less than 0.05 % of the sample weight is lost between the time of sealing
...
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