
Product Description
Standards
GB/T6670-2008,GB/T 6670-2008,GB/T 10652,ISO 8307,ASTM D3574
It is a cost-effective instrument designed for professional measurement of sponges, foam, rubber and other soft materials. The steel ball is mainly dropped freely on the sample of soft foamed plastic or other elastic materials. The instrument for measuring its rebound height is mainly used to determine the rebound performance (rebound coefficient) in the testing items of polyurethane elastic materials.
Product Parameters
1. Power supply |
220VAC, 50HZ |
2. Instrument testing resolution |
1/10000 second |
3. Rebound coefficient measurement range |
25% -80% |
4. Precision of ball rebound rate |
<1.5% |
5. Drop distance of steel ball |
460+0.5% mm (national standard) 500+0.5% mm (American standard) |
6. Steel ball diameter |
16-0.05 mm |
7. Display |
LCD Chinese |
Working principle of sponge rebound rate tester:
Sponge, foam, rubber and other materials shall be stored for at least 72 hours before testing after molding. Before testing, the sample should be conditioned in an environment with a temperature of 23 ± 2 ºC and a relative humidity of 45% -50% for at least 16 hours, and then tested in the aforementioned environment.
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