PP low-temperature impact trials: specimen condition matters
Impact data is only comparable when specimen preparation, conditioning temperature and test method are recorded together. A result from one temperature should not be used to describe every service environment.
Testing note
Impact data is only comparable when specimen preparation, conditioning temperature and test method are recorded together. A result from one temperature should not be used to describe every service environment.
When comparing formulations, keep the resin and moulding conditions stable and note the failure appearance as well as the number.