API 6A 21st Edition Appendix F PR3 requires RGD testing for all non-metallic seals in 20,000 psi equipment. Similar requirements are spreading globally. Qualification must be third-party witnessed and compound-specific. Certificates without fixture pressure/temperature logs are no longer accepted by major operators. https://globalsealstech.com/product/rgd-rapid-gas-decompression-o-rings/