Presto Stantest Private Limited manufactures Co-efficient of Friction Tester held by strong electromagnetic Dart holder. Presto Stantest Private Limited is an ISO 9001: 2000 certified company. The co-efficient of Friction Tester held by strong electromagnetic Dart holder is used for determining the energy that causes plastic films to fail under specified conditions of impact of a free falling dart. The dart has a hemispherical head and can be dropped from variable heights. The strong electromagnetic dart holder releases the dart at the press of a button. Co-efficient of Friction Tester conforms to BS 2782 and ASTM D-1894 and other equivalent standards.