|
Water level |
Waterproof performance evaluation |
|
Level 0 |
No anti-wetting properties |
|
Level 1 |
|
|
Level 1-2 |
Poor anti-wetting performance |
|
Level 2 |
|
Water level |
Waterproof performance evaluation |
|
Level 2-3 |
Poor anti-wetting performance |
|
Level 3 |
Anti-wetting properties |
|
Level 3-4 |
Has good anti-wetting properties |
|
Level 4 |
Has good anti-wetting properties |
|
Level 4-5 |
Has excellent anti-wetting properties |
|
Level 5 |
|
Anti-hydrostatic pressure rating |
Hydrostatic pressure value P/kPa |
Waterproof performance evaluation |
|
Level 0 |
P<4 |
Poor resistance to hydrostatic pressure |
|
Level 1 |
4≤笔＜13 |
Anti-hydrostatic properties |
|
Level 2 |
13≤笔＜20 |
|
|
Level 3 |
20≤笔＜35 |
Has good resistance to hydrostatic pressure |
|
Level 4 |
35≤笔＜50 |
Has excellent resistance to hydrostatic pressure |
|
Level 5 |
50≤笔 |
|
|
Note: The hydrostatic pressure values ??measured at different water pressure rise rates are different. The waterproof performance evaluation in the table is based on the water pressure rise rate of 6.0kPa/min. |
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