Adhesion Tester Accuracy Verification Kit Ideal for checking the accuracy and operation of adhesion testers and is an important component in fulfilling both ISO and in-house quality control requirements. EASY OPERATION Connect the adhesion tester’s pull-off actuator to the PosiTest AT Verifier’s loading fixture. Apply pressure using the adhesion tester’s normal operating procedure. Compare values from the adhesion tester and the Verification Device.