ASTM D6609-00

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.
1.5 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.

General Information

• Status: Historical
• Publication Date: 09-Nov-2001
• ICS: 73.040 - Coals
• Technical Committee: D05 - Coal and Coke
• Drafting Committee: D05.23 - Sampling

Relations

• Replaced By: ASTM D6609-01 - Standard Guide for Part-Stream Sampling of Coal
• Effective Date: 10-Nov-2001

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:D6609–00
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 (ε) 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 The user is cautioned that samples of this type do not
satisfytheminimumrequirementsforprobabilitysamplingand 4. Summary of Guide
as such cannot be used to obtain any meaningful statistical
4.1 Part-stream sampling is accomplished by collecting
inferences such as the sampling precision, standard error, or
increments from part of a stream of coal for the purpose of
bias. This guide should be used only when it is not possible to
acquiring a gross sample.
use a method of sampling that produces a probability sample.
5. Significance and Use
1.3 Sample preparation procedures involving crushing are
contained in Method D 2013.
5.1 This guide provides instructions for sampling by col-
1.4 The values stated in SI units are to be regarded as
lecting individual increments from part of a cross section of a
standard. The values in parentheses are for information only.
moving stream, part of a cross section of a free-falling stream,
1.5 This standard does not purport to address all of the
or part of a cross section of a columnar section of coal, as
safety concerns, if any, associated with its use. It is the
opposed to collection of individual increments by removal of a
responsibility of the user of this standard to establish appro-
full cross section of material. The use of part-stream sampling,
priate safety and health practices and determine the applica-
and the detailed procedures for each case, should be agreed
bility of regulatory requirements prior to use.
upon in advance by all parties concerned. Samples collected by
use of this guide are not probability samples.
2. Referenced Documents
5.2 All parties should be cautioned that manual sampling of
2.1 ASTM Standards:
coal from a moving stream might not enable sampling of the
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D 121 Terminology of Coal and Coke
material that is furthermost from the point of entry into stream
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D 2013 Method of Preparing Coal Samples for Analysis
by the sampling device.
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D 2234 Practice for Collection of a Gross Sample of Coal
6. Increment Collection Classification
D 4749 Test Method for Performing SieveAnalysis of Coal
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and Designating Coal Size
6.1 Three distinct classifications of part-stream sampling
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E 105 Practice for Probability Sampling of Materials
methodsarerecognizedbythisguide,inorderofpreference,as
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E 456 Terminology Relating to Quality and Statistics
listed below:
2.2 Federal Standards:
6.1.1 Condition C-1—The case in which groups of succes-
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Federal Mine and Safety and Health Act of 1977
sive part-stream increments are taken so that the increments
within each group encompass the full cross section of the coal
stream.
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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.
Current edition approved Nov. 10, 2000. Published January 2001.
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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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D6609–00
6.1.2 Condition C-2—The case in which groups of succes- potential for particle rebounding, the relative location to the
sive part-stream increments are collected from different posi- sample preparation equipment, and variations in the coal
tions relative to the full cross section of the coal stream but t
...