ASTM D7002-16

Standard Practice for Electrical Leak Location on Exposed Geomembranes Using the Water Puddle Method

SCOPE
1.1 This practice is a performance-based standard for an electrical method for locating leaks in exposed geomembranes. For clarity, this practice uses the term “leak” to mean holes, punctures, tears, knife cuts, seam defects, cracks, and similar breaches in an installed geomembrane (as defined in 3.2.5).  
1.2 This practice can be used for geomembranes installed in basins, ponds, tanks, ore and waste pads, landfill cells, landfill caps, canals, and other containment facilities. It is applicable for geomembranes made of materials such as polyethylene, polypropylene, polyvinyl chloride, chlorosulfonated polyethylene, bituminous geomembrane, and any other electrically insulating materials. This practice is best applicable for locating geomembrane leaks where the proper preparations have been made during the construction of the facility.  
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.4 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.

General Information

• Status: Historical
• Publication Date: 31-Dec-2015
• ICS: 59.080.70 - Geotextiles
• Technical Committee: D35 - Geosynthetics
• Drafting Committee: D35.10 - Geomembranes

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D7002 − 16
Standard Practice for
Electrical Leak Location on Exposed Geomembranes Using
1
the Water Puddle Method
This standard is issued under the fixed designation D7002; 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 D7953 Practice for Electrical Leak Location on Exposed
Geomembranes Using the Arc Testing Method
1.1 This practice is a performance-based standard for an
electrical method for locating leaks in exposed geomembranes.
3. Terminology
For clarity, this practice uses the term “leak” to mean holes,
3.1 Definitions:
punctures, tears, knife cuts, seam defects, cracks, and similar
3.1.1 For general definitions used in this practice, refer to
breaches in an installed geomembrane (as defined in 3.2.5).
Terminology D4439.
1.2 This practice can be used for geomembranes installed in
3.2 Definitions of Terms Specific to This Standard:
basins, ponds, tanks, ore and waste pads, landfill cells, landfill
3.2.1 artificial leak, n—an electrical simulation of a leak in
caps, canals, and other containment facilities. It is applicable
a geomembrane.
for geomembranes made of materials such as polyethylene,
3.2.2 conductive-backed geomembrane, n—a specialty
polypropylene, polyvinyl chloride, chlorosulfonated
geomembrane manufactured using coextrusion technology fea-
polyethylene, bituminous geomembrane, and any other electri-
turing an insulating layer in intimate contact with a conductive
cally insulating materials. This practice is best applicable for
layer.
locating geomembrane leaks where the proper preparations
3.2.3 current, n—the flow of electricity or the flow of
have been made during the construction of the facility.
electric charge.
1.3 The values stated in SI units are to be regarded as
3.2.4 electrical leak location, n—a method which uses
standard. No other units of measurement are included in this
electrical current or electrical potential to locate leaks.
standard.
3.2.5 leak, n—for the purposes of this document, a leak is
1.4 This standard does not purport to address all of the
any unintended opening, perforation, breach, slit, tear,
safety concerns, if any, associated with its use. It is the
puncture, crack, or seam breach. Significant amounts of liquids
responsibility of the user of this standard to establish appro-
or solids may or may not flow through a leak. Scratches,
priate safety and health practices and determine the applica-
gouges, dents, or other aberrations that do not completely
bility of regulatory limitations prior to use.
penetrate the geomembrane are not considered to be leaks.
2. Referenced Documents
Types of leaks detected during surveys include, but are not
2
limitedto:burns,circularholes,linearcuts,seamdefects,tears,
2.1 ASTM Standards:
punctures, and material defects.
D4439 Terminology for Geosynthetics
D6747 GuideforSelectionofTechniquesforElectricalLeak
3.2.6 leak detection sensitivity, n—the smallest leak that the
Location of Leaks in Geomembranes leak location equipment and survey methodology are capable
D7703 Practice for Electrical Leak Location on Exposed
of detecting under a given set of conditions. The leak detection
Geomembranes Using the Water Lance Method sensitivity specification is usually stated as a diameter of the
smallest leak that can likely be detected.
3.2.7 poor contact condition, n—for the purposes of this
practice, a poor contact condition means that a leak is not in
1
This practice is under the jurisdiction of ASTM Committee D35 on Geosyn- intimate contact with the conductive layer above or underneath
thetics and is the direct responsibility of Subcommittee D35.10 on Geomembranes.
the geomembrane to be tested. This occurs on a wrinkle or
Current edition approved Jan. 1, 2016. Published January 2016. Originally
wave, under the overlap flap of a fusion weld, in an area of
approved in 2003. Last previous edition approved in 2015 as D7002-15. DOI:
liner bridging and in an area where there is a subgrade
10.1520/D7002-16.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
depression or rut.
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
3.2.8 probe, n—for the purposes of this practice, any con-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. ductive structure that is attached to a power source.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D7002 − 16
3.2.9 squeegee, n—for the purposes of this document, a 5.1.2 Current
...

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: D7002 − 15 D7002 − 16
Standard Practice for
Electrical Leak Location on Exposed Geomembranes Using
1
the Water Puddle Method
This standard is issued under the fixed designation D7002; 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 is a performance-based standard for an electrical method for locating leaks in exposed geomembranes. For
clarity, this practice uses the term “leak” to mean holes, punctures, tears, knife cuts, seam defects, cracks, and similar breaches in
an installed geomembrane (as defined in 3.2.5).
1.2 This practice can be used for geomembranes installed in basins, ponds, tanks, ore and waste pads, landfill cells, landfill caps,
canals, and other containment facilities. It is applicable for geomembranes made of materials such as polyethylene, polypropylene,
polyvinyl chloride, chlorosulfonated polyethylene, bituminous geomembrane, and any other electrically insulating materials. This
practice is best applicable for locating geomembrane leaks where the proper preparations have been made during the construction
of the facility.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D4439 Terminology for Geosynthetics
D6747 Guide for Selection of Techniques for Electrical Leak Location of Leaks in Geomembranes
D7703 Practice for Electrical Leak Location on Exposed Geomembranes Using the Water Lance Method
1
This practice is under the jurisdiction of ASTM Committee D35 on Geosynthetics and is the direct responsibility of Subcommittee D35.10 on Geomembranes.
Current edition approved Jan. 1, 2015Jan. 1, 2016. Published January 2015January 2016. Originally approved in 2003. Last previous edition approved in 20102015 as
D7002D7002–10.-15. DOI: 10.1520/D7002-15.10.1520/D7002-16.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. 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 ----------------------
D7002 − 16
D7953 Practice for Electrical Leak Location on Exposed Geomembranes Using the Arc Testing Method
3. Terminology
3.1 Definitions:
3.1.1 For general definitions used in this practice, refer to Terminology D4439.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 artificial leak, n—an electrical simulation of a leak in a geomembrane.
3.2.2 conductive-backed geomembrane, n—a specialty geomembrane manufactured using coextrusion technology featuring an
insulating layer in intimate contact with a conductive layer.
3.2.3 current, n—the flow of electricity or the flow of electric charge.
3.2.4 electrical leak location, n—a method which uses electrical current or electrical potential to locate leaks.
3.2.5 leak, n—for the purposes of this document, a leak is any unintended opening, perforation, breach, slit, tear, puncture,
crack, or seam breach. Significant amounts of liquids or solids may or may not flow through a leak. Scratches, gouges, dents, or
other aberrations that do not completely penetrate the geomembrane are not considered to be leaks. Types of leaks detected during
surveys include, but are not limited to: burns, circular holes, linear cuts, seam defects, tears, punctures, and material defects.
3.2.6 leak detection sensitivity, n—the smallest leak that the leak location equipment and survey methodology are capable of
detecting under a given set of conditions. The leak detection sensitivity specification is usually stated as a diameter of the smallest
leak that can likely be detected.
3.2.7 poor contact condition, n—for the purposes of this practice, a poor contact condition means that a leak is not in intimate
contact with the conductive layer above or underneath the geomembrane to be te
...