This revision to D7522 adjusts the rate at which the load is applied to the specimen. The language has been harmonized with that found in related standard D7234 – Pull-Off Adhesion Strength of Coatings on Concrete. Pull-off tests are completed with a self-contained apparatus, and we have heard from users of D7522 and the manufacturers of the apparatus that is difficult to apply a continuous smooth loading at the low rates specified in the current standard.
Developed by Subcommittee: D30.10
Staff Manager: Melissa Marcinowski
Date Initiated: 12-17-2021
Technical Contact: Russell Gentry
Ballot: D30 (21-06)
Status: Negative Votes Need Resolution