Standard Practice for Heat Aging of Plastics Without Load Ingestion-build-228203 to establish means by which

to establish means by which the distribution of failures with time can be determined

because of their intended use

and packaging are not in the scope of BS EN 45558

and the pressures to which it is considered most appropriate to subject the material under test

This International Standard is applicable to liquids of any vapour pressure as long as suitable precautions are taken to ensure that they remain in single phase with no loss of light ends and subsequent changes in composition and density during both the sample handling and the density determination

Standard Practice for Heat Aging of Plastics Without Load Ingestion-build-228203 to establish means by which1. Scope* 1. 1 This practice is intended to define the exposure conditions for evaluating the thermal endurance of plastics when exposed solely to hot air for extended periods of time. Only the procedure for heat exposure is specified. The effect of elevated temperature on any particular property is determined by selection of the appropriate test method and test specimens for that property.