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From [Institution name]
Properties | Requirements | Results | |||
---|---|---|---|---|---|
Black membrane | Brown membrane | ||||
Thickness (mm) | Report | 0.635 | 0.635 | ||
Weight (g/m2 ) | ≥ 500 | 732 | 640 | ||
Impact load | min. 12 of 15 must pass a rating of 3 | 15 of 15 passed | 15 of 15 passed | ||
Static puncturing | min. 5 of 6 must pass a rating of 3 | 6 of 6 passed | 6 of 6 passed | ||
Cold bending | No visible cracking | No visible cracking | No visible cracking | ||
Side water flow | < 15 minutes | 3 seconds | 3 seconds | ||
Original Footnote (1) | tensile strength at yield (kN/m) | ≥ 8 | 13 | 15 | |
elongation at break (%) | ≥ 25 | 930 | 911 | ||
Water immersion Footnote (1) | tensile strength at yield (%) | ≥ 80 of original | 116 | 104 | |
elongation at break (%) | ≥ 70 of original | 105 | 94 | ||
Heat aging Footnote (1) | dimensional change (%) | ≤±1 | 0 | 0 | |
weight change (%) | ≤ 0.10 | −0.06 | −0.05 | ||
tensile strength at yield (%) | ≥ 80 of original | 130 | 108 | ||
elongation at break (%) | ≥ 70 of original | 105 | 107 | ||
Chemical attack exposure | ammonium chloride | tensile strength at yield (%) | ≥ 80 of original | 107 | 98 |
elongation at break (%) | ≥ 70 of original | 105 | 128 | ||
sodium sulfate | tensile strength at yield (%) | ≥ 80 of original | 111 | 101 | |
elongation at break (%) | ≥ 70 of original | 105 | 128 | ||
Compressive strength (kN/m2 ) | ≥ 100 | 335 | 290 |