Turn the adhesive surface of specimen upward and place it onto the test plate inclining 30°fix two ends with tape and weight respectively. Release freely the steel balls from large one down to small one is sequence on the top end of testing plate. Record the number of steel ball which can stay on the tape for least 5 seconds.
◆ Testing Specimen: 4 (PCS)
◆ Dimension (W×D×H): 58 × 39 × 33 cm
◆ Weight: 17 kg