ASTM D623-07 Standard Test Methods for Rubber Property—Heat Generation and Flexing Fatigue In Compression
The Flexometer test method yields data that can be used to estimate the relative service quality of different compounds. They are often applicable to research and development studies.
These test methods may be used to compare the fatigue characteristics and rate of heat generation of different rubber vulcanizates when they are subjected to dynamic compressive strains.
ISO 4666-3:2016 specifies the flexometer test with constant-strain amplitude for the determination of the temperature rise and resistance to fatigue of vulcanized rubber. The flexometer specified is known as the Goodrich flexometer.
ISO 4666-3:2016 gives directions for carrying out measurements that make possible predictions regarding the durability of rubbers in finished articles subject to dynamic flexing in service, such as tires, bearings, supports, V-belts, and cable-pulley insert rings. However, owing to the wide variations in service conditions, no simple correlation between the accelerated tests described in the various parts of this document and service performance can be assumed.
The method is recommended for rubber having a hardness between 30 and 85 IRHD.
