Description
TEST & INSPECTION
|
TEST |
REQUIREMENT |
RESULT |
|
Visual Inspection |
There is no color aberration for PP-R pipe,PP-R pipe surface must be smooth, without hollow,bubble,visible impurity or any other defect |
Qualified |
|
Non-Transparency Test |
PP-R pipe shouldn’t be transparent |
Light Proof |
|
Vertical Reversion Rate |
≤2% |
0.7 |
|
Impact Test |
damage rate < 10% of samples |
No damage |
|
Hydro-static Pressure Test |
1 6 Mpa pressure for 1 hour under 20℃ temperature |
No crack,no leakage |
|
4.2 Mpa pressure for 22 hours under 95℃ temperature |
No crack,no leakage |
|
|
3.8 Mpa pressure for 165 hours under 95℃ temperature |
No crack,no leakage |
|
|
3.5 Mpa pressure for 1000 hours under 95℃ temperature |
No crack,no leakage |