ASTM E1911-19 PDF Download

Using the Dynamic Friction Tester (DF tester), the ASTM E1911-19 standard test procedure determines the characteristics of surface friction. The test procedure can be applied in a lab or out in the field. It gives a sliding speed-dependent measurement of surface friction. This test method's goal is to ascertain how different polishing procedures affect different materials or combinations of components.

Three spring-loaded rubber sliders are mounted on a horizontally spinning disk, which serves as the DF tester in this technique. The sliders come into contact with the surface being tested, and as a result of friction between the sliders and the surface, the rotational speed of the disk slows down, allowing the torque produced by the slider forces to be measured. The friction is then calculated as a function of speed using the measured torque.

It is crucial to keep in mind that the numbers acquired using this method for figuring out friction qualities or skid resistance may not immediately coincide with those obtained using other methods. SI (metric) units are used to present the standard, and rationalized inch-pound equivalents are given. Additionally, the Nippo Sangyo dynamic friction tester employed in this approach is protected by a patent, and ASTM International Headquarters will take other solutions into consideration.