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ASTM WK40007

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Work Item: ASTM WK40007 - Revision of D4787 - 08 Standard Practice for Continuity Verification of Liquid or Sheet Linings Applied to Concrete Substrates


Active Standard: D4787 - 13

Developed by Subcommittee: D01.46 | Committee D01 Home | Contact Staff Manager



1. Rationale

This Standard Practice has been reviewed prior to submission for ballot for the five-year periodic re-approval. The NACE reference document has been updated and is now an SP. Clause 6.1.5 has been updated to show Hz as the unit of pulse frequency, with cycles per second as the alternative for clarity.


Keywords

conductive underlayment; conductivity; discontinuities; high voltage spark testers; low voltage wet sponge testers; Cracking--coatings; Discontinuities--coatings; Concrete paint applications; Conductance and conductivity (electrical); Continuity verification; High-voltage continuity testing; Holiday detection; Inclusions; Internal voids; Lining industry; Linings; Nonconductive linings; Pinhole test; Sheet materials (general);

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Work Item Status:
Date Initiated:12-11-2012
Technical Contact: John Fletcher

Item: 011
Ballot: D01 (12-05)
Status: Ballot Item Approved as D4787-2013 and Pending Publication

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