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ASTM D 7007 : 2016 : REDLINE

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Standard Practices for Electrical Methods for Locating Leaks in Geomembranes Covered with Water or Earthen Materials
Available format(s)

PDF

Superseded date

26-03-2024

Language(s)

English

Published date

13-01-2016

CONTAINED IN VOL. 04.13, 2017 Defines standard procedures for using electrical methods to locate leaks in geomembranes covered with water or earthen materials.

1.1These practices cover standard procedures for using electrical methods to locate leaks in geomembranes covered with water or earthen materials. 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).

1.2These practices are intended to ensure that leak location surveys are performed with demonstrated leak detection capability. To allow further innovations, and because various leak location practitioners use a wide variety of procedures and equipment to perform these surveys, performance-based operations are used that specify the minimum leak detection performance for the equipment and procedures.

1.3These practices require that the leak location equipment, procedures, and survey parameters used are demonstrated to result in an established minimum leak detection distance. The survey shall then be conducted using the demonstrated equipment, procedures, and survey parameters.

1.4Separate procedures are given for leak location surveys for geomembranes covered with water and for geomembranes covered with earthen materials. Separate procedures are given for leak detection distance tests using actual and artificial leaks.

1.5Examples of methods of data analysis for soil-covered surveys are provided as guidance in Appendix X1.

1.6Leak location surveys can be used on geomembranes installed in basins, ponds, tanks, ore and waste pads, landfill cells, landfill caps, and other containment facilities. The procedures are applicable for geomembranes made of materials such as polyethylene, polypropylene, polyvinyl chloride, chlorosulfonated polyethylene, bituminous material, and other electrically-insulating materials.

1.7The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.8(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 earthen material and earth ground, or any grounded conductor. These procedures are potentially VERY DANGEROUS, and can result in personal injury or death. The electrical methods used for geomembrane leak location should be attempted only by qualified and experienced personnel. Appropriate safety measures must be taken to protect the leak location operators as well as other people at the site.)

1.9This 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.

Committee
D 35
DocumentType
Redline
Pages
13
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy

ASTM D 7700 : 2015 : REDLINE Standard Guide for Selecting Test Methods for Geomembrane Seams
ASTM D 7909 : 2014 Standard Guide for Placement of Blind Actual Leaks during Electrical Leak Location Surveys of Geomembranes
ASTM D 7852 : 2013 Standard Practice for Use of an Electrically Conductive Geotextile for Leak Location Surveys
ASTM D 6747 : 2015 : REDLINE Standard Guide for Selection of Techniques for Electrical Leak Location of Leaks in Geomembranes

ASTM D 6747 : 2015 : REDLINE Standard Guide for Selection of Techniques for Electrical Leak Location of Leaks in Geomembranes
ASTM D 4439 : 2017-08 TERMINOLOGY FOR GEOSYNTHETICS

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