RGD testing at 300°C is now possible with new high-temperature fixtures. Tecnoflon® PFR 06HC recently passed 10 cycles at 316°C/15 MPa with decompression rate 40 bar/min. This opens doors for geothermal and ultra-deep HPHT reservoirs where bottom-hole temperatures approaching 600°F (315°C) https://globalsealstech.com/product/rgd-rapid-gas-decompression-o-rings/