ASTM D6707/D6707M-06(2016)e1
(Specification)Standard Specification for Circular-Knit Geotextile for Use in Subsurface Drainage Applications
Standard Specification for Circular-Knit Geotextile for Use in Subsurface Drainage Applications
ABSTRACT
This specification covers circular-knit geotextiles for use on the outside of perforated pipes and Class B geocomposites in subsurface drainage applications. Material covered by this specification comprises Type A and Type B fabric geotextiles, which have been used extensively as filtration geotextiles in combination with subsurface drainage pipes. The geotextile shall be manufactured from polymeric materials by a circular-knit process, which will ensure a consistent, continuous fabric without seams. Tests for water permittivity, apparent opening size, and puncture strength shall be performed and shall conform to the requirements specified. Per service requirement, additional tests for chemical resistance and durability may be performed as well.
SCOPE
1.1 This specification covers circular-knit geotextiles for use on the outside of perforated pipes and Class B geocomposites per Specification D7001 in drainage applications.
1.2 The tests used to characterize the geotextile are intended to ensure good workmanship and quality, and are not necessarily adequate for design purposes in view of the importance of environmental factors and specific performance objectives. Tests have been selected with essentially neutral aqueous systems in mind. Other tests may be necessary to establish chemical resistance and durability under the conditions of a particular application.
1.3 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-conformance with the standard.
1.4 This standard may involve hazardous materials, operations, and equipment. 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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´1
Designation:D6707/D6707M −06 (Reapproved 2016)
Standard Specification for
Circular-Knit Geotextile for Use in Subsurface Drainage
Applications
This standard is issued under the fixed designation D6707/D6707M; 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.
ε NOTE—Designation was changed to dual and units information was corrected editorially in January 2016.
1. Scope 2. Referenced Documents
1.1 This specification covers circular-knit geotextiles for 2.1 ASTM Standards:
use on the outside of perforated pipes and Class B geocom- D123 Terminology Relating to Textiles
posites per Specification D7001 in drainage applications. D4439 Terminology for Geosynthetics
D4491/D4491M Test Methods for Water Permeability of
1.2 The tests used to characterize the geotextile are intended
Geotextiles by Permittivity
to ensure good workmanship and quality, and are not neces-
D4751 Test Methods for Determining Apparent Opening
sarily adequate for design purposes in view of the importance
Size of a Geotextile
of environmental factors and specific performance objectives.
D6241 Test Method for Static Puncture Strength of Geotex-
Tests have been selected with essentially neutral aqueous
tiles and Geotextile-Related Products Using a 50-mm
systems in mind. Other tests may be necessary to establish
Probe
chemical resistance and durability under the conditions of a
D7001 Specification for Geocomposites for Pavement Edge
particular application.
Drains and Other High-Flow Applications
1.3 The values stated in either SI units or inch-pound units
are to be regarded separately as standard. The values stated in 3. Terminology
each system may not be exact equivalents; therefore, each
3.1 Definitions of Terms Specific to This Standard:
system shall be used independently of the other. Combining
3.1.1 circular knit—a structure produced by interlooping
values from the two systems may result in non-conformance
one or more ends of yarn or comparable material in a
with the standard.
continuously circular orientation around the fabric.
1.4 This standard does not purport to address all of the
3.1.2 filtration—the equilibrium soil to geotextile system
safety concerns, if any, associated with its use. It is the
that allows for adequate liquid flow with limited soil loss
responsibility of the user of this standard to establish appro-
across the plane of the geotextile over the service lifetime
priate safety, health and environmental practices and deter-
compatible with the application under consideration.
mine the applicability of regulatory limitations prior to use.
3.2 Definitions in this specification are in accordance with
1.5 This international standard was developed in accor-
Terminologies D123 and D4439, unless otherwise specified.
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
4. Classification
Development of International Standards, Guides and Recom-
4.1 The circular-knit geotextiles covered by this specifica-
mendations issued by the World Trade Organization Technical
tion are classified as follows:
Barriers to Trade (TBT) Committee.
4.1.1 Type A: fabric
4.1.2 Type H: fabric
This specification is under the jurisdiction of ASTM Committee D35 on
Geosynthetics and is the direct responsibility of Subcommittee D35.06 on Geosyn-
thetic Specifications. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Jan. 1, 2016. Published June 2016. Originally approved contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
in 2001. Last previous edition approved in 2011 as D6707 – 06 (2011). DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/D6707_D6707M-06R16E01. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Dri
...
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.
´1
Designation: D6707 − 06 (Reapproved 2011) D6707/D6707M − 06 (Reapproved 2016)
Standard Specification for
Circular-Knit Geotextile for Use in Subsurface Drainage
Applications
This standard is issued under the fixed designation D6707;D6707/D6707M; 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.
ε NOTE—Designation was changed to dual and units information was corrected editorially in January 2016.
1. Scope
1.1 This specification covers circular-knit geotextiles for use on the outside of perforated pipes and Class B geocomposites per
Specification D7001 in drainage applications.
1.2 The tests used to characterize the geotextile are intended to ensure good workmanship and quality, and are not necessarily
adequate for design purposes in view of the importance of environmental factors and specific performance objectives. Tests have
been selected with essentially neutral aqueous systems in mind. Other tests may be necessary to establish chemical resistance and
durability under the conditions of a particular application.
1.3 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-conformance with the standard.
1.4 This standard may involve hazardous materials, operations, and equipment. 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.
2. Referenced Documents
2.1 ASTM Standards:
D123 Terminology Relating to Textiles
D4439 Terminology for Geosynthetics
D4491D4491/D4491M Test Methods for Water Permeability of Geotextiles by Permittivity
D4751 Test Method for Determining Apparent Opening Size of a Geotextile
D6241 Test Method for Static Puncture Strength of Geotextiles and Geotextile-Related Products Using a 50-mm Probe
D7001 Specification for Geocomposites for Pavement Edge Drains and Other High-Flow Applications
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 circular knit—a structure produced by interlooping one or more ends of yarn or comparable material in a continuously
circular orientation around the fabric.
3.1.2 filtration—the equilibrium soil to geotextile system that allows for adequate liquid flow with limited soil loss across the
plane of the geotextile over the service lifetime compatible with the application under consideration.
3.2 Definitions in this standardspecification are in accordance with TerminologyTerminologies D123 and D4439, unless
otherwise specified.
4. Classification
4.1 The circular-knit geotextiles covered by this specification are classified as follows:
4.1.1 Type A: fabric
This specification is under the jurisdiction of ASTM Committee D35 on Geosynthetics and is the direct responsibility of Subcommittee D35.03 on Permeability and
Filtration.
Current edition approved June 1, 2011Jan. 1, 2016. Published July 2011June 2016. Originally approved in 2001. Last previous edition approved in 20062011 as
D6707D6707–06(2011).–06. DOI: 10.1520/D6707-06R11.10.1520/D6707_D6707M-06R16E01.
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
...
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