No. | Item | I | II | ||||
PY | G | PY | G | PYG | |||
1 | Soluble content/(g/m2)≥ | 3mm | 2100 |
|
|||
4mm | 2900 |
|
|||||
5mm | 3500 | ||||||
Test |
|
No flame |
|
No flame |
|
||
2 | Heat resistance | ºC | 90 | 105 | |||
≤mm | 2 | ||||||
Test | No flow, no dripping | ||||||
3 | Low temperature flexibility/ºC | -20 | -25 | ||||
No crack | |||||||
4 | Impermeability 30minutes | 0.3MPa | 0.2MPa | 0.3MPa | |||
5 | Tension | Maximum/(N/50mm) | 500 | 350 | 800 | 500 | 900 |
Secondly-Maximum |
|
|
|
|
800 | ||
Test | No crack, no apart | ||||||
6 | Elongation | Maximum/%≥ | 30 |
|
40 |
|
|
Secondly-Maximum≥ |
|
|
15 | ||||
7 | Oil Leaking | Pieces≤ | 2 |
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