| Physical properties | Unit | I-DHD | Standard | |
|---|---|---|---|---|
| Assembled Drain Filter+Core |
Weight | g/m | >240 | |
| WidthXThickness | mm | (200 ± 5.00) × (>8.0) (300 ± 5.00) × (>8.0) |
ASTM D 3774 | |
| ASTM D 5199 | ||||
| Effective Filtration Area/1MR | ㎡/m | >0.3 | ||
| Material | PE, PP | |||
| Shape | Through front/rear & top/down directions of the inner core material, easy water flowing is possible. |  |
||
| Double harmonica (fishbone) type | ||||
| Tensile Strength(Dry) | kN(full width) | >5 | ASTM D 4595 | |
| Tensile Strength(Wet) | ||||
| Discharge Capacity | ㎤/sec | >1,300 | ASTM D 4716 | |
| @120kPa | ||||
| Discharge Capacity of Joint | ㎤/sec | >1,300 | ASTM D 4716 | |
| @120kPa | ||||
| Discharge Capacity of overlapping | ㎤/sec | >1,300 | ASTM D 4716 | |
| @120kPa | ||||
| Filter | number of hole | ea/m | >350 | |
| Material | PET | |||
| Weight | g/㎡ | >110 | ||
| Permeability | cm/s | 1 × 10 -3 | ASTM D 4491 | |
| Tensile Strength | kN/M | >6.0 | ASTM D 4595 | |
| Elongation | % | 20 ~ 80 | ASTM D 4595 | |
| AOS (O90) | ㎛ | ≤ 90 | ASTM D 4751 | |