ASTM D6609-07
(Guide)Standard Guide for Part-Stream Sampling of Coal
Standard Guide for Part-Stream Sampling of Coal
SCOPE
1.1 This guide covers general principles for obtaining a gross sample of coal by taking increments from part of a stream of coal rather than from the entire stream to be sampled. The usefulness of results from this guide will vary greatly depending on such factors as top size of the coal, size consistency of the coal, variability of the coal, and such logistical factors as the flow rate of the coal in process and physical accessibility of the sampling station.
1.2 This guide should be used only when it is not possible to use a method of sampling that produces a probability sample.
1.3 Sample preparation procedures involving crushing are contained in Method D 2013.
1.4 The values stated in SI units are to be regarded as standard. The values in parentheses are for information only.
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 requirements prior to use.
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Designation:D6609–07
Standard Guide for
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Part-Stream Sampling of Coal
This standard is issued under the fixed designation D 6609; 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.
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1. Scope Federal Mine and Safety and Health Act of 1977
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Occupational Safety and Health Act of 1970
1.1 This guide covers general principles for obtaining a
grosssampleofcoalbytakingincrementsfrompartofastream
3. Terminology
of coal rather than from the entire stream to be sampled. The
3.1 Definitions—For additional definitions of terms, refer to
usefulness of results from this guide will vary greatly depend-
Terminology D 121, Method D 2013, Terminology E 456, and
ing on such factors as top size of the coal, size consistency of
Practice D 2234/D 2234M.
the coal, variability of the coal, and such logistical factors as
3.2 Definitions of Terms Specific to This Standard:
the flow rate of the coal in process and physical accessibility of
3.2.1 part-stream sampling, n—a method of coal sampling
the sampling station.
in which collection of individual increments does not encom-
1.2 Thisguideshouldbeusedonlywhenitisnotpossibleto
pass the full cross section of the coal stream.
use a method of sampling that produces a probability sample.
1.3 Sample preparation procedures involving crushing are
4. Summary of Guide
contained in Method D 2013.
4.1 Part-stream sampling is accomplished by collecting
1.4 The values stated in SI units are to be regarded as
increments from part of a stream of coal for the purpose of
standard. The values in parentheses are for information only.
acquiring a gross sample.
1.5 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
5. Significance and Use
responsibility of the user of this standard to establish appro-
5.1 This guide provides instructions for sampling by col-
priate safety and health practices and determine the applica-
lecting individual increments from part of a cross section of a
bility of regulatory requirements prior to use.
moving stream of coal, as opposed to collection of individual
increments by removal of a full cross section of material. The
2. Referenced Documents
2 use of part-stream sampling, and the detailed procedures for
2.1 ASTM Standards:
each case, should be agreed upon in advance by all parties
D 121 Terminology of Coal and Coke
concerned. Samples collected by use of this guide are not
D 2013 Practice for Preparing Coal Samples for Analysis
probability samples. The user is cautioned that samples of this
D 2234/D 2234M Practice for Collection of a Gross Sample
type do not satisfy the minimum requirements for probability
of Coal
sampling and as such cannot be used to obtain any meaningful
E 456 Terminology Relating to Quality and Statistics
statistical inferences such as the sampling precision, standard
2.2 Federal Standards:
error, or bias.
5.2 All parties should be cautioned that manual sampling of
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coal from a moving stream might not enable sampling of the
This guide is under the jurisdiction of ASTM Committee D05 on Coal and
Coke and is the direct responsibility of Subcommittee D05.23 on Sampling.
material that is furthermost from the point of entry into stream
Current edition approved Oct. 1, 2007. Published October 2007. Originally
by the sampling device.
approved in 2000. Last previous edition approved in 2001 as D 6609-01
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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
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D6609–07
6. Increment Collection Classification the sampling pattern to be used at that point. This section
contains general principles for determining the preferred op-
6.1 Three distinct classifications of part-stream sampling
tions regarding location of the sampling station and the pattern
methodsarerecognizedbythisguide,inorderofpreference,as
to be used.
listed below:
7.2.1 Location Along the Coal Stream— A sampling point,
6.1.1 Condition C-1—The case in which groups of succes-
protected from environment (wind, rain, and so forth), is
sive part-stream increments are taken so that the increments
usually the best choice for locating the point of sampling.
withi
...
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