Property |
Test method |
Unit |
HF20 | HF25 | HF30 | HF35 | HF40 |
Mass per unit area |
ISO9073-1 |
g/㎡ |
20±4 |
25±4 |
30±4 |
35±4 |
40±4 |
Thickness |
ISO9073-2 |
mm |
0.15±0.02 |
0.16±0.02 |
0.17±0.02 |
0.18±0.02 |
0.18±0.03 |
Tensile strength |
ISO9073-3 |
N/cm |
≥20 |
≥22 |
≥28 |
≥33 |
≥38 |
Elongation |
ISO9073-3 |
﹪ |
≥12 |
≥12 |
≥12 |
≥12 |
≥12 |