ASTM D454 RUBBER DETERIORATION BY HEAT AND AIR PRESSURE
This test method covers a procedure to determine the influence of elevated temperature and air pressure on the physical properties of vulcanized rubber. The results of this test may not give an exact correlation with service performance since performance conditions vary widely. The test may, however, be used to evaluate rubber compounds on a laboratory comparison basis. It will be most applicable to performance under conditions of increased temperature and air pressure.
ASTM D572 RUBBER-DETERIORATION BY HEAT AND OXYGEN
This test method covers a procedure to determine the relative deterioration resistance of vulcanized rubber in a high temperature and high pressure oxygen environment. There may be no exact correlation between this accelerated test and natural aging of rubber because of the varied conditions of natural aging. This accelerated test is suitable for laboratory compound or product comparisons.
Fully made in stainless steel, this bath has a capacity of about 15 l and is thermostated by a digital thermoregulator PID, with overtemperature alarm. The uniformity of thermostating is controlled by a stirrer motor. The bath includes a cooling coil and a double bottom used as bearing surface for cylinders and test-piece holders.
– Temperature: from ambient to 150°C (302°F)
– Stability: ±0.1°
– Capacity: 15 l about
– Power supply: 220V 50/60Hz