BS ISO 13939:2013 Foil bearings. Guidelines for testing of the performance of foil journal bearings. Testing of load capacity, friction coefficient and lifetime
2019BS ISO 13939:2019 Foil bearings. Performance testing of foil journal bearings. Testing of static load capacity, friction coefficient and lifetime
2013BS ISO 13939:2013 Foil bearings. Guidelines for testing of the performance of foil journal bearings. Testing of load capacity, friction coefficient and lifetime