ASTM D6323-12e1
(Guide)Standard Guide for Laboratory Subsampling of Media Related to Waste Management Activities (Withdrawn 2018)
Standard Guide for Laboratory Subsampling of Media Related to Waste Management Activities (Withdrawn 2018)
SIGNIFICANCE AND USE
4.1 This guide discusses options for taking a subsample from a sample submitted to a laboratory. If followed, it will minimize the bias and variance of the characteristic of interest of the laboratory sample prior to analysis.
4.2 The guide will describe appropriate instructions to be submitted to the laboratory with the field sample.
4.3 This guide is intended for use in the laboratory to take a representative subsample or specimen of the whole field sample for direct analysis or sample preparation for analysis. It is intended for field personnel, data users, laboratory sample reception personnel, analysts, and managers.
4.4 To obtain a representative subsample, layer analysis, grinding, mixing, and changing the physical state such as digesting, drying, melting or freezing may be required. This guide considers cone and quartering, riffle splitting, and particle size reduction.
SCOPE
1.1 This guide covers common techniques for obtaining representative subsamples from a sample received at a laboratory for analysis. These samples may include solids, sludges, liquids, or multilayered liquids (with or without solids).
1.2 The procedures and techniques discussed in this guide depend upon the sample matrix, the type of sample preparation and analysis performed, the characteristic(s) of interest, and the project specific instructions or data quality objectives.
1.3 This guide includes several sample homogenization techniques, including mixing and grinding, as well as information on how to obtain a specimen or split laboratory samples.
1.4 This guide does not apply to air or gas sampling.
1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.6 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.
WITHDRAWN RATIONALE
This guide covered common techniques for obtaining representative subsamples from a sample received at a laboratory for analysis.
Formerly under the jurisdiction of Committee D34 on Waste Management, this guide was withdrawn in October 2018. This standard is being withdrawn without replacement due to its limited use by industry.
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: D6323 − 12
Standard Guide for
Laboratory Subsampling of Media Related to Waste
1
Management Activities
This standard is issued under the fixed designation D6323; 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.
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ε NOTE—Sections 6.1.4.2 and 6.1.7 were editorially corrected in February 2013.
1. Scope Samples for Laboratory Analysis
D2234/D2234M Practice for Collection of a Gross Sample
1.1 This guide covers common techniques for obtaining
of Coal
representative subsamples from a sample received at a labora-
D4547 Guide for Sampling Waste and Soils for Volatile
tory for analysis. These samples may include solids, sludges,
Organic Compounds
liquids, or multilayered liquids (with or without solids).
D4823 Guide for Core Sampling Submerged, Unconsoli-
1.2 The procedures and techniques discussed in this guide
dated Sediments
depend upon the sample matrix, the type of sample preparation
D5681 Terminology for Waste and Waste Management
andanalysisperformed,thecharacteristic(s)ofinterest,andthe
D5743 Practice for Sampling Single or Multilayered
project specific instructions or data quality objectives.
Liquids, With or Without Solids, in Drums or Similar
1.3 This guide includes several sample homogenization
Containers
techniques, including mixing and grinding, as well as informa-
D5792 Practice for Generation of Environmental Data Re-
tion on how to obtain a specimen or split laboratory samples.
lated to Waste Management Activities: Development of
Data Quality Objectives
1.4 This guide does not apply to air or gas sampling.
D5956 Guide for Sampling Strategies for Heterogeneous
1.5 The values stated in SI units are to be regarded as
Wastes
standard. No other units of measurement are included in this
D6051 Guide for Composite Sampling and Field Subsam-
standard.
pling for Environmental Waste Management Activities
1.6 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
3. Terminology
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
3.1 Definitions—For definitions of terms used in this guide,
bility of regulatory limitations prior to use.
refer to Terminology D5681.
3.2 Definitions of Terms Specific to This Standard:
2. Referenced Documents
3.2.1 contaminant unit, n—the largest particle size that
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2.1 ASTM Standards:
contains the contaminant of interest
C702 PracticeforReducingSamplesofAggregatetoTesting
3.2.1.1 Discussion—The contaminant of concern, as defined
Size
by the project objectives, may be associated with all the
C859 Terminology Relating to Nuclear Materials
particle sizes or associated with only a certain particle size or
D346 Practice for Collection and Preparation of Coke
sizes. At the time of waste generation, discharge or spill, the
particle size of this contaminant of concern may be on the
atomic or molecular scale, such as solvent spill into sand, or a
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This test method is under the jurisdiction of ASTM Committee D34 on Waste
macro scale, such as lead acid batteries at a dump site. The
Management and is the direct responsibility of Subcommittee D34.01.01 on
Planning for Sampling.
contaminant unit may also be in-between these scales, such as
Current edition approved Nov. 1, 2012. Published December 2012. Originally
leadparticlesencapsulatedincoal.Inpractice,thecontaminant
approved in 1998. Last previous edition approved in 2003 as D6323 – 98 (2003),
unit may change if the contaminant unit becomes absorbed or
which was withdrawn in June 2012 and reinstated in August 2012. DOI: 10.1520/
D6323-12E01.
adsorbed to particles larger than the contaminant unit. It is the
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
size of the contaminant unit at the time of subsampling, not at
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
the time of generation, that is referred to as the contaminant
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. unit.
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D6323 − 12
3.2.2 maximum allowable particle size, n—the largest lineal 5.1.1 Theappropriateinstructionsmustbereviewedbyboth
dimension of a sample’s individual particles accepted for a the laboratory receiving personnel and the analyst(s) or super-
given sample mass. visor. If there are no instructions, the appropriate laboratory
3.2.2.1 Discuss
...
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