ASTM D6072/D6072M-18
(Practice)Standard Practice for Obtaining Samples of Geosynthetic Clay Liners
Standard Practice for Obtaining Samples of Geosynthetic Clay Liners
SIGNIFICANCE AND USE
4.1 This practice provides a procedure by which samples of GCL should be obtained for laboratory testing. The practice applies to materials obtained prior to installation (either at a job site or at a production facility) or exhumed material after installation.
4.2 Only GCL samples obtained in accordance with 5.1 of this practice will be considered representative of the actual manufactured GCL for quality assurance/quality control (QA/QC) purposes.
4.3 The quantity of GCL received by the laboratory should be sufficient for the preparation of several representative test specimens for the standardized physical, hydraulic, and mechanical tests to be performed on the GCLs.
4.4 The procedures in this practice should be used by plant and field personnel for obtaining GCL samples for laboratory testing.
SCOPE
1.1 This practice covers procedures for sampling geosynthetic clay liners (GCLs) for the purpose of laboratory testing. These procedures are designed to ensure that representative samples are obtained and properly packaged for submittal to a testing laboratory.
1.2 The procedures in this practice may be applied to either samples of unhydrated GCLs obtained at the project site prior to installation (or at the production facility, prior to shipment to the project site) or samples exhumed from a project site after installation.
1.3 It is assumed that the number of samples to be obtained has already been determined in the project specification, standard test method, or by prior agreement between the purchaser and seller. This practice covers only the methods for obtaining a pre-arranged number of samples and does not describe methods for obtaining individual specimens from the sample.
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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Designation: D6072/D6072M − 18
Standard Practice for
1
Obtaining Samples of Geosynthetic Clay Liners
This standard is issued under the fixed designation D6072/D6072M; 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.
1. Scope 2. Referenced Documents
2
1.1 This practice covers procedures for sampling geosyn- 2.1 ASTM Standards:
D4220/D4220M Practices for Preserving and Transporting
thetic clay liners (GCLs) for the purpose of laboratory testing.
Soil Samples
These procedures are designed to ensure that representative
D4354 Practice for Sampling of Geosynthetics and Rolled
samples are obtained and properly packaged for submittal to a
Erosion Control Products (RECPs) for Testing
testing laboratory.
D4439 Terminology for Geosynthetics
1.2 The procedures in this practice may be applied to either
D5888 Guide for Storage and Handling of Geosynthetic
samples of unhydrated GCLs obtained at the project site prior
Clay Liners
to installation (or at the production facility, prior to shipment to
the project site) or samples exhumed from a project site after
3. Terminology
installation.
3.1 Definitions:
1.3 It is assumed that the number of samples to be obtained
3.1.1 geosynthetic clay liner (GCL), n—a manufactured
has already been determined in the project specification,
hydraulic barrier consisting of clay bonded to a layer or layers
standard test method, or by prior agreement between the
of geosynthetics.
purchaser and seller. This practice covers only the methods for
3.1.2 sample, n—a portion of a material which is taken for
obtaining a pre-arranged number of samples and does not
testing or for record purposes (see Practice D4354).
describe methods for obtaining individual specimens from the
3.1.3 specimen, n—a specific portion of a material or
sample.
laboratory sample upon which a test is performed or which is
1.4 The values stated in either SI units or inch-pound units
taken for that purpose (see Practice D4354).
are to be regarded separately as standard. The values stated in
3.2 For definitions of other geosynthetic terms used in this
each system may not be exact equivalents; therefore, each
practice, refer to Terminology D4439.
system shall be used independently of the other. Combining
values from the two systems may result in nonconformance
4. Significance and Use
with the standard.
4.1 This practice provides a procedure by which samples of
1.5 This standard does not purport to address all of the
GCL should be obtained for laboratory testing. The practice
safety concerns, if any, associated with its use. It is the
appliestomaterialsobtainedpriortoinstallation(eitheratajob
responsibility of the user of this standard to establish appro-
site or at a production facility) or exhumed material after
priate safety, health, and environmental practices and deter-
installation.
mine the applicability of regulatory limitations prior to use.
4.2 Only GCL samples obtained in accordance with 5.1 of
1.6 This international standard was developed in accor-
this practice will be considered representative of the actual
dance with internationally recognized principles on standard-
manufactured GCL for quality assurance/quality control (QA/
ization established in the Decision on Principles for the
QC) purposes.
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
4.3 The quantity of GCL received by the laboratory should
Barriers to Trade (TBT) Committee.
be sufficient for the preparation of several representative test
specimens for the standardized physical, hydraulic, and me-
chanical tests to be performed on the GCLs.
1
This practice is under the jurisdiction of ASTM Committee D35 on Geosyn-
thetics and is the direct responsibility of Subcommittee D35.04 on Geosynthetic
2
Clay Liners. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved June 1, 2018. Published June 2018. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1996. Last previous edition approved in 2015 as D6072/D6072M – 09 Standards volume information, refer to the standard’s Document Summary page on
(2015). DOI: 10.1520/D6072_D6072M-18. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D6072/D6072M − 18
4.4 The procedures in this practice should be used by plant the rolled sample. The outer sheeting shall be at least 0.15 mm
and field personnel for obtaining GCL samples
...
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: D6072/D6072M − 09 (Reapproved 2015) D6072/D6072M − 18
Standard Practice for
1
Obtaining Samples of Geosynthetic Clay Liners
This standard is issued under the fixed designation D6072/D6072M; 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.
1. Scope
1.1 This practice covers procedures for sampling geosynthetic clay liners (GCLs) for the purpose of laboratory testing. These
procedures are designed to ensure that representative samples are obtained and properly packaged for submittal to a testing
laboratory.
1.2 The procedures in this practice may be applied to either samples of unhydrated GCLs obtained at the project site prior to
installation (or at the production facility, prior to shipment to the project site) or samples exhumed from a project site after
installation.
1.3 It is assumed that the number of samples to be obtained has already been determined in the project specification, standard
test method, or by prior agreement between the purchaser and seller. This practice covers only the methods for obtaining a
pre-arranged number of samples and does not describe methods for obtaining individual specimens from the sample.
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the
two systems may result in non-conformancenonconformance with the standard.
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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.6 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
D4220D4220/D4220M Practices for Preserving and Transporting Soil Samples
D4354 Practice for Sampling of Geosynthetics and Rolled Erosion Control Products (RECPs) for Testing
D4439 Terminology for Geosynthetics
D5888 Guide for Storage and Handling of Geosynthetic Clay Liners
3. Terminology
3.1 Definitions:
3.1.1 geosynthetic clay liner (GCL), n—a manufactured hydraulic barrier consisting of clay bonded to a layer or layers of
geosynthetics.
3.1.2 sample, n—a portion of a material which is taken for testing or for record purposes (See(see Practice D4354).
3.1.3 specimen, n—a specific portion of a material or laboratory sample upon which a test is performed or which is taken for
that purpose (See(see Practice D4354).
3.1.4 For definitions of other geosynthetic terms used in this practice, refer to Terminology D4439.
3.2 For definitions of other geosynthetic terms used in this practice, refer to Terminology D4439.
1
This practice is under the jurisdiction of ASTM Committee D35 on Geosynthetics and is the direct responsibility of Subcommittee D35.04 on Geosynthetic Clay Liners.
Current edition approved Jan. 1, 2015June 1, 2018. Published February 2015June 2018. Originally approved in 1996. Last previous edition approved in 20092015 as
D6072/D6072MD6072/D6072M – 09 (2015).–09. DOI: 10.1520/D6072_D6072M-09R15.10.1520/D6072_D6072M-18.
2
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 Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D6072/D6072M − 18
4. Significance and Use
4.1 This practice provides a procedure by which samples of GCL should be obtained for laboratory testing. The practice applies
to materials obtained prior to installation (either at a job site or at a production facility) or exhumed material after installation.
4.2 Only GCL samples obtained in accordance with 5.1 of this pra
...
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