Stress relaxation testing ISO 3384-1, ISO 6914

Relaxation is the decrease in counter pressure, which can be measured in a rubber test piece exposed to constant deformation.The deformation method can either be compression or tension.

Relaxation measuring can be done in two different ways. Either the measurements of the original force and the force after different times can be taken at the test temperature, or all measurements are taken at room temperature, while the samples are stored at increased temperature in between these measurements. In certain cases, relaxation measuring is also done in liquids, for example in oil. This is common for, for example, O-rings.

Elastocon offers equipment for ozone testing of rubber and plastics from Anseros – a developer and manufacturer of components and systems in ozone technology.