... -year warranty, lifetime warranty, 2. Error of transducer within 0.2%, ensure testing accurately, 3. Reasonable price Keywords of Coefficient of Friction Tester: 1. Standard ... : ISO 8295, ASTM D1894 2. Others: slip coefficient of friction, static coefficient of friction, Coefficient of Friction Tester, film Coefficient of Friction Tester, COF tester ...