These electronic hardness testers (Shore A, D, B, C, D0, 0, 00, 000) are used for hardness determination on plastics and rubber to DIN 53505, ASTM D 2240, ISO 868, NFT 51109 and BS 903 Part A26.

It is essential for standard-compliant testing that specimens have a plane-parallel contact surface of at least 35 mm diameter and a material thickness of 6 mm.

Hardness value determination after hold times of 3 seconds (DIN specification) and 1 second (ISO requirement) can be accommodated with digital hardness testing instruments.