... calibrated spring load, and the result is given in Shore hardness degrees, displayed either on an analogue scale or as a ... calibrated, its calibration status being unaffected by the host Durometers.Hardness values range from 0 (full penetration) to 100 (no penetration), Full ... , ISO 48, DIN 53519, DIN 53505, ASTM D2240, ASTM D1415 Hardness Testing of Polymer Materials