What is the method? The trick is the Durometer is used to measure the depth or curve of an object or test material. This depth depends on the hardness of the material, its viscoelastic nature, the shape of the presser foot, and the time of testing. ASTM D2240 durometer allows for measurement of initial hardness, or hardness of indentation after a certain period of time. Basic tests require applying force consistently, without surprises, and measuring hardness (depth of indentation). If the hardness of the time is desired, the force is applied to the time required and then read. The material tested must be at least 6.4 mm (0.25 inch) thick.
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