To determine the hardness of plastics, in 1915 Albert Shore developed an extremely simple process: A pin made of hardened metal and of a defined shape is held by a spring and is then pushed into the test item. Depending on the depth of the penetration, the material tester is either harder or softer. This method has been adopted in the DIN standards 53505 and 7868.
Currently there are two types of devices used for this test: Mechanical measuring devices with drag indicator and electronic measuring devices.

Every electronic measuring device will only give correct results if it is checked regularly, i.e. calibrated correctly and adjusted when required. An electronic measuring device is only a reliable measuring and checking tool if it is calibrated and this calibration is documented as part of a quality procedure.

At this time, KERN does not calibrate Shore hardness testing instruments. As an alternative, we recommend that the measuring device is operated with a calibrated kit of test plates (such as SAUTER AHBA-01).
We are pleased to offer you the factory calibration of Shore test plates AHBA-01 and AHBD-01 in our ultra-modern laboratory within fastest processing times (4 working days).

Content of the calibration certificate

At the following you will exemplary see a detail of the taken values. You will find the complete sample certificate here.

Pricing summary

The prices for the calibration of Shore test plates are as follows: