ASTM D4437/D4437M-16(2023)

Standard Practice for Nondestructive Testing (NDT) for Determining the Integrity of Seams Used in Joining Flexible Polymeric Sheet Geomembranes

standard by ASTM International , 11/01/2023

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Full Description

1.1 This practice is intended for use as a summary of nondestructive quality control test methods for determining the integrity of seams used in the joining of flexible sheet materials in a geotechnical application. This practice outlines the test procedures available for determining the quality of bonded seams. Any one or combination of the test methods outlined in this practice can be incorporated into a project specification for quality control. These test methods are applicable to manufactured flexible polymeric membrane linings that are scrim reinforced or nonreinforced. This practice is not applicable to destructive testing. For destructive test methods, look at other ASTM standards and practices.

1.2 The types of seams covered by this practice include the following: thermally bonded seams, hot air, hot wedge (or knife), extrusion, solvent-bonded seams, bodied solvent-bonded seams, adhesive-bonded or cemented seams, taped seams, and waterproofed sewn seams.

1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Product Details

Published:: 11/01/2023
Number of Pages:: 2
File Size:: 1 file , 250 KB
Note:: This product is unavailable in Russia, Ukraine, Belarus