| NO. | Test Item | Value | ||||
| B | S | J | ||||
| 1 | Hardness (Shore A) | 60+/-5 | 60+/-5 | 60+/-5 | ||
| 2 | Tensile MPa | ≥ | 15 | 12 | 10 | |
| 3 | Elongation at break(%) | ≥ | 380 | 380 | 300 | |
| 4 | Compression set(%) | 70° C*24h | ≤ | 20 | 20 | 20 |
| 5 | 23° C*168h | ≤ | 30 | 25 | 25 | |
| 6 | Tear strength(kn/m) | ≥ | -45 | -40 | -40 | |
| 7 | Brittle Temperature(°C) | ≤ | 35 | 35 | 35 | |
| 8 | Ozone Resistance(50pphm,20% 48H) | Level 2 | Level 2 | Level 2 | ||