| Item | Unit | Performance | Test Method | ||
|---|---|---|---|---|---|
| PE Double-Wall Pipe | |||||
| Ring Stiffness (SN) | KN/㎡ | Nominal | Ring Stiffness standard | KS M 3500-1 KS M 3500-2 |
|
| 150-200 | 12.5 or higher | 16 or higher | |||
| 250-600 | 8 or higher | 12.5 or higher | |||
| Ring Stiffness test | - | No cracks, breaks, or damage | |||
| Impact test | - | No cracks, breaks, or damage | |||
| Flow index | g/10min | 1.6 or less (190°C, 5.0 kg) | |||
| Melt mass | |||||
| Density | g/㎤ | 0.941이상 | |||
| Yield tensile strength | N/㎟ | 20.0 or higher | |||
| Batch test | Wt.% | 0.10 or less | |||
| Carbon black content | % | 2.0~3.0 | |||
| Thermal stability | Minutes | over 20 | |||
| NCLS | hr | over 24 | |||
| Item | Unit | Performance of Socket Connector | Test Method |
|---|---|---|---|
| Yield tensile strength | N/㎟ | 15.0 or higher | KPS M 2017 |
| Batch test | Wt.% | 0.10 or less | |
| Carbon black content | % | 2.0~3.0 | |
| Thermal stability (OIT) | Minutes | over 20 | |
| NCLS | hr | over 24 | |
| Connection water tightness test | - | No leakage |
| Nominal | Outer diameter (mm) | Inner diameter (mm) | Pipe wall thickness (mm) | Ring Stiffness | Length | |||
|---|---|---|---|---|---|---|---|---|
| 150 | 176 | 180 | 150 | 13 | 15 | 12.5 | 16 | 6m |
| 200 | 228 | 232 | 200 | 14 | 16 | 12.5 | 16 | |
| 250 | 280 | 284 | 250 | 15 | 17 | 8 | 12.5 | |
| 300 | 338 | 340 | 300 | 19 | 20 | 8 | 12.5 | |
| 400 | 450 | 460 | 400 | 25 | 30 | 8 | 12.5 | |
| 450 | 508 | 510 | 450 | 29 | 30 | 8 | 12.5 | |
| 500 | 562 | 570 | 500 | 31 | 35 | 8 | 12.5 | |
| 600 | 678 | 694 | 600 | 39 | 47 | 8 | 12.5 | |