The HZ-5021 rubber compression recovery tester evaluates rebound after specimens have been held under a defined pressure for a specified time. After release and cooling, the final center thickness is measured and used to calculate compression recovery.
Applicable standards: FIA 304 and SATRA PM64.
Technical specifications:
1. Test capacity: 3–27 specimens.
2. Reference specimen thickness: 9.52 mm, measured to 0.01 mm.
3. Conditioning: 24 hours at standard room conditions, followed by one hour of recovery after removal.
4. Method 1 specimens: foam, 29.0 mm diameter; non-foam, 14.5 mm diameter.
5. Method 2 specimens: foam, 25.4 × 25.4 mm; non-foam, 12.7 mm diameter.
6. Dimensions: 23 cm diameter × 65 cm high.
7. Weight: 40 kg.
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