Testing
Compression Set Elastomer Testing: Why Flattened O-Rings Stop Sealing
What compression set means for O-Rings: ASTM D395 / ISO 815 test methods, how to read % set, Method B vs button tests, and how seal engineers use the number for long-term squeeze.
TR-10 Elastomer Testing: How Temperature Retraction Predicts Cold Sealing
What TR-10 means for O-Rings and rubber seals: ASTM D1329 / ISO 2921 test method, how to read TR-10 and TR70, static vs dynamic cold limits, and typical values by elastomer family.
