Пластмассы. Определение температуры хрупкости при ударе
Название (англ.):
Plastics; Determination of the brittleness temperature by impact
Описание (англ.):
Specifies a method for the determination of the temperature at which plastics, that are not rigid at normal temperature exhibit brittle failure under specified conditions of deformation. Cantilever specimens are bended through 90 around a mandrel of 4 mm radius at a constant speed in an inert medium, the temperature of which is precisely controlled. The specimens may be notched or unnotched. The methodmakes provision for the testing of sufficient specimens to permit calculation of the brittleness temperature (50 % probability of failure) on a statistical basis.