This standard specifies the characteristics of o-rings in fluorocarbon rubber FKM, low compression set, hardness 80 IRHD, for aerospace applications.
They are intended to be used in air, mineral / synthetic oil and fuel systems.
Operating conditions - Temperature:
a) Continuous operation: - 20 ℃ to + 225 ℃;
b) Static applications minimum temperature of use: - 50 ℃.
Limitation:
not to be used with phosphoric ester type hydraulic fluids (permanent or temporary immersion).
BS EN 3049:1998 history
1998BS EN 3049:1998 O-rings, in fluorocarbon rubber (FKM), low compression set - Hardness 80 IRHD