Rubber, vulcanized or thermoplastic -
Determination of flex cracking and
crack growth (De Mattia)
(Second revision)
(ISO 132:2017, IDT)
This document specifies a method of test intended for use in comparing the resistance of vulcanized or thermoplastic rubbers to the formation and growth of cracks, when subjected to repeated flexing on the De Mattia type machine. For determination of crack growth, an artificial cut is made in the testpiece to initiate cut growth.