ASTM - D7703
Standard Practice for Electrical Leak Location on Exposed Geomembranes Using the Water Lance System
|Publication Date:||1 June 2011|
This standard is a performance-based practice using the water lance system, a electrical method for detecting leaks in exposed geomembranes. For clarity, this document uses the term "leak" to mean holes, punctures, tears, knife cuts, seam defects, cracks and similar breaches in an installed geomembrane.
This standard 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 electricallyinsulati
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. 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.
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.