| Item | Type | ||||
| T1 | T2 | T3 | T4 | ||
| Test Temperature | |||||
| ≤100℃ | ≤125℃ | ≤150℃ | ≤175℃ | ||
| Change Range allow | |||||
| Hardness | Difference before and after aging (IRHD) | +20 | +20 | +20 | +20 |
| Maximum value after aging (IRHD) |
85 | ||||
| Tensile Strength | Change rate after aging % | -25 | -30 | -40 | -40 |
| Minimum value after aging (MPa) | 12 | 10 | 5 | 5 | |
| Elongation at break | Change rate after aging % | -50 | -50 | -55 | -55 |
| Minimum value after aging (%) | 200 | 200 | 180 | 180 | |