ASTM D7852-13
Standard Practice for Use of an Electrically Conductive Geotextile for Leak Location Surveys

Standard No.

ASTM D7852-13

Release Date

2013

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D7852-13(2022)

Latest

ASTM D7852-23

Scope

5.1 With the increased use of geomembranes as a barrier material to restrict liquid migration from one location to another, a need has been created for standardized tests by which the integrity of the installed geomembrane, including the seams, can be evaluated. This practice is intended to meet such a need whenever the sub-graded soil is non-conductive, or a geomembrane is installed on a non-conductive material.

5.2 The use of a suitably-conductive geotextile installed between a non-conductive soil or material and the geomembrane will permit electrical leak location survey to be conducted.

5.3 The compatibility of a conductive geotextile and leak location equipment shall be assessed for each leak location technique considered (covered or exposed, when applicable). A realistic small scale test shall have been conducted by the supplier of geotextile and / or leak detection equipment to demonstrate their mutual compatibility for a given leak detection technique.

1.1 This standard practice describes standard procedures for using a conductive geotextile with electrical methods to locate leaks in exposed geomembranes and geomembranes covered with water or earth materials containing moisture.

1.2 This standard practice provides guidance for the use of appropriate conductive geotextile used in leak location survey on geomembrane. This guide includes all types of conductive geotextile with sufficient conductivity for the particular electrical leak location method. A conductive geotextile is applicable to all types of geoelectric surveys when there is otherwise not a conductive layer under the geomembrane.

1.3 The leak stream itself being adequately conductive. A conductive geotextile is applicable to all types of geoelectric surveys when there is otherwise not a conductive layer under the geomembrane.

1.4 This standard practice is intended to ensure that leak location surveys can always be performed with a reasonable level of certainty. This standard practice provides guidance for the use of appropriate conductive geotextile used in leak location survey on geomembranes.

1.5 Leak location surveys can be used on non-conductive geomembranes installed in basins, ponds, tanks, ore and waste pads, landfill cells, landfill caps, other containment facilities and building applications such as in parking garages, decks and green roofs. The procedures are applicable for geomembranes made of non conductive materials such as polyethylene, polypropylene, polyvinyl chloride, chlorosulfonated polyethylene, bituminous material, and other electrically-insulating materials. Leak location survey involving conductive or partially conductive geomembranes are not within the scope of this document.

1.6 Warning—The electrical methods used for geomembrane leak location could use high voltages, resulting in the potential for electrical shock or electrocution. This hazard might be increased because operations might be conducted in or near water. In particular, a high voltage could exist between the water or earth material and earth ground, or any grounded conductor. These procedures are potentially VERY DANGEROUS, and can result in personal injury or death. Because of the high voltage th......

ASTM D7852-13 Referenced Document

• ASTM D4439 Standard Terminology for Geosynthetics
• ASTM D6747 Standard Guide for Selection of Techniques for Electrical Leak Location of Leaks in Geomembranes
• ASTM D7002 Standard Practice for Electrical Leak Location on Exposed Geomembranes Using the Water Puddle Method
• ASTM D7007 Standard Practices for Electrical Methods for Locating Leaks in Geomembranes Covered with Water or Earthen Materials

ASTM D7852-13 history

• 2023 ASTM D7852-23 Standard Practice for Use of an Electrically Conductive Geotextile for Leak Location Surveys
• 2022 ASTM D7852-13(2022) Standard Practice for Use of an Electrically Conductive Geotextile for Leak Location Surveys
• 2013 ASTM D7852-13 Standard Practice for Use of an Electrically Conductive Geotextile for Leak Location Surveys