This Compression Set device complies with ISO 815, ASTM D 395 Method B, DIN 53 517 standards.
The Compression Set Test methods are intended to measure the ability of rubbers to retain their elastic properties at specified temperatures after prolonged compression at constant strain (normally 25 %) under specific Temperaure and Deformation conditions.
For rubber of nominal hardness within the range 10 IRHD to 80 IRHD 25 % strain is normally used. For hardness of 80 IRHD and above, a lower compression strain is used: 15 % for a nominal hardness from 80 IRHD to 89 IRHD and 10 % for a nominal hardness from 90 IRHD to 95 IRHD.
Key Features • Usable area optimized for 12 specimens
• Instrument setups with 2 or 3 plates
• Aluminum handle for one-hand manipulation
• 3-bolt lock for quick preparation
• Support base for screwdriver use
• Chrome-plated plates with standard roughness
• Calibration report for roughness and spacers thickness
• Circular anti-fall spacers
• Rubber feet
How to perform a test To perform a test:
1) Insert the samples between the test plates
2) insert the 3 spacers requestd to obtain the expected deformation
3) Close the bolts until the plates come in contact with the spacers to apply the expected deformation
4) Place the whole device in an oven at the set temperature and for the desired test time
5) Remove the device from the oven and mesure the permanent deformation using the procedure described in the standards