This standard BS EN 2799:2018 Aerospace series. Fluorocarbon rubber (FKM). Low compressions set. Hardness 90 IRHD is classified in these ICS categories:
49.025.40 Rubber and plastics
This European Standard specifies the properties of fluorocarbon rubber (FKM) ), low compression set, hardness 90 IRHD, for aerospace applications.