Impact.
Impact. The test shall be performed in accordance with ASTM D 4565-90a using an impact force of 4 newton-meter (3 pound force-foot) at a temperature of 101 C. The cylinder shall strike the sample at the shield overlap. A crack or split in the jacket constitutes failure.
No. of pairs Nominal jacket thickness mm (in.)25 or less 1.4 (0.055) 50 1.5 (0.060) 100 1.7 (0.065) 200 1.9 (0.075) 300 2.2 (0.085) 400 2.4 (0.095) 600 2.9 (0.115) 800 and over 3.3 (0.130)