ASTM D6609-01

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Designation:D6609–01
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 Occupational Safety and Health Act of 1970
1.1 This guide covers general principles for obtaining a
3. Terminology
grosssampleofcoalbytakingincrementsfrompartofastream
3.1 Definitions—For additional definitions of terms, refer to
of coal rather than from the entire stream to be sampled. The
Terminology D 121, Method D 2013, Terminology E 456, and
usefulness of results from this guide will vary greatly depend-
Practice D 2234.
ing on such factors as top size of the coal, size consistency of
3.2 Definitions of Terms Specific to This Standard:
the coal, variability of the coal, and such logistical factors as
3.2.1 part-stream sampling, n—a method of coal sampling
the flow rate of the coal in process and physical accessibility of
in which collection of individual increments does not encom-
the sampling station.
pass the full cross section of the coal stream.
1.2 This guide should be used only when it is not possible to
use a method of sampling that produces a probability sample.
4. Summary of Guide
1.3 Sample preparation procedures involving crushing are
4.1 Part-stream sampling is accomplished by collecting
contained in Method D 2013.
increments from part of a stream of coal for the purpose of
1.4 The values stated in SI units are to be regarded as
acquiring a gross sample.
standard. The values in parentheses are for information only.
1.5 This standard does not purport to address all of the
5. Significance and Use
safety concerns, if any, associated with its use. It is the
5.1 This guide provides instructions for sampling by col-
responsibility of the user of this standard to establish appro-
lecting individual increments from part of a cross section of a
priate safety and health practices and determine the applica-
moving stream of coal, as opposed to collection of individual
bility of regulatory requirements prior to use.
increments by removal of a full cross section of material. The
use of part-stream sampling, and the detailed procedures for
2. Referenced Documents
each case, should be agreed upon in advance by all parties
2.1 ASTM Standards:
concerned. Samples collected by use of this guide are not
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D 121 Terminology of Coal and Coke
2 probability samples. The user is cautioned that samples of this
D 2013 Method of Preparing Coal Samples for Analysis
type do not satisfy the minimum requirements for probability
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D 2234 Practice for Collection of a Gross Sample of Coal
sampling and as such cannot be used to obtain any meaningful
D 4749 Test Method for Performing SieveAnalysis of Coal
statistical inferences such as the sampling precision, standard
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and Designating Coal Size
3 error, or bias.
E 105 Practice for Probability Sampling of Materials
5.2 All parties should be cautioned that manual sampling of
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E 456 Terminology Relating to Quality and Statistics
coal from a moving stream might not enable sampling of the
2.2 Federal Standards:
material that is furthermost from the point of entry into stream
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Federal Mine and Safety and Health Act of 1977
by the sampling device.
6. Increment Collection Classification
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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.
6.1 Three distinct classifications of part-stream sampling
Current edition approved Nov. 10, 2001. Published January 2002. Originally
methodsarerecognizedbythisguide,inorderofpreference,as
published as D6609-00. Last previous edition D6609-00
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listed below:
Annual Book of ASTM Standards, Vol 05.06.
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Annual Book of ASTM Standards, Vol 14.02.
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Available form Standardization Documents Order Desk, Bldg. 4 Section D, 700
Robbins Ave., Philadelphia, PA 19111–5094, Attn: NPODS.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D6609–01
6.1.1 Condition C-1—The case in which groups of succes- contains general principles for determining the preferred op-
sive part-stream increments are taken so that the increments tions regarding location of the sampling station and the pattern
within each group encompass the full cross section of the coal to be used.
stream. 7.2.1 Location Along the Coal Stream— A sampling point,
protected from environment (wind, rain, and so forth), is
6.1.2 Condition C-2—The case in which groups of succes-
usually the best choice
...