ISO 815-2:2014 Rubber, vulcanized or thermoplastic - Determination of compression set. Part 2: At low temperatures

Second edition. The committee responsible for this document is ISO/TC45, Rubber and rubber products, SC 2, Testing and analysis. This second edition cancels and replaces the first edition (ISO 815-2:2008), which has been technically revised, mainly by addition of method 1 and a calibration schedule (Annex A). — 24 p.
This part of ISO 815 specifies two methods for the determination of the compression set characteristics of vulcanized and thermoplastic rubbers at low temperatures. Method 1 derives from the methodology used in ISO 815-1. Method 2 uses a specified testing device, allowing to measure and record the test piece thickness during recovery. Due to the load applied during recovery in method 2, no correlation can be established between the results given by both methods.