Quality assurance for FFKM O-rings includes ASTM D1418 classification and ISO 9001 certification. Tests verify compression set below 20% at 200°C for 70 hours. Chemical immersion per SAE AMS7277 simulates service life. Ultrasonic scanning detects voids. Traceability via lot coding ensures recall capability. Marco Rubber's protocols exceed military specs like MIL-R-83485. This rigor gu... https://globalsealstech.com/ffkm-seals/