Hardness

Smithers Rapra has a wealth of experience in determining the hardness of polymeric materials in various forms.

This test measures the depth of indentation of a ball into a sample. Hardness values are then calculated using tables derived from the empirical relationship between indentation depth and hardness.

Smithers Rapra can offer a comprehensive range of hardness measurements. Low, macro, high and micro machines are available. Shore A and D durometer determinations are also performed, with durometers mounted to a stand, yielding better reproducibility.

Our extensive sample preparation facilities mean we are able to test a huge variety of materials and product forms.

Standards and Accreditation

Smithers Rapra are ISO 17025 UKAS accredited to BS EN ISO 868 (Shore A & D) for plastic film materials.