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Significance and Use
This practice is a nondestructive evaluation intended to be used for quality control purposes during factory or field seaming of geomembranes.
This practice may also be used to evaluate geomembrane panels for holes that penetrate the entire thickness of material. Limitations on the test practice are that it may not be suitable for uneven or curved surfaces, thick seams, seams in corners, and thin extensible geomembranes.
1.1 This practice covers procedures to perform nondestructive quality control testing described in Practice D4437 and D4545 for evaluating the continuity of all types of geomembrane seams using the bubble emission or vacuum chamber method.
1.2 The technique described in this practice is intended for use on geomembrane seams, patches, and defects.
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.
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 (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D4437 Practice for Non-destructive Testing (NDT) for Determining the Integrity of Seams Used in Joining Flexible Polymeric Sheet Geomembranes
D4439 Terminology for Geosynthetics
D4545 Practice for Determining the Integrity of Factory Seams Used in Joining Manufactured Flexible Sheet Geomembranes
E515 Practice for Leaks Using Bubble Emission Techniques
ICS Number Code 59.080.70 (Geotextiles)
UNSPSC Code 30121900(Soil stabilizers and reinforcing materials)
ASTM D5641-94(2011), Standard Practice for Geomembrane Seam Evaluation by Vacuum Chamber, ASTM International, West Conshohocken, PA, 2011, www.astm.orgBack to Top