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From [Institution name]
Property |
Unit |
Requirement |
Result Summer Grade |
Result Winter Grade |
|
---|---|---|---|---|---|
Thickness variation |
% |
±10% of the manufacturer’s declared value |
0.01Footnote (1) |
0.05Footnote (1) |
|
Hardness (Type 00 hardness gauge) |
− |
Report value |
82.1 |
81.4 |
|
Water vapour permeance (WVP), Procedure B |
ng/(Pa∙s∙m2) |
±10% of the manufacturer’s declared value |
1.32 |
1.24 |
|
Tensile strength at break machine direction |
kN/mFootnote (2) |
Report value |
11.91 |
12.38 |
|
Tensile strength at break cross-machine direction |
13.57 |
13.67 |
PropertyFootnote (1), Footnote (2) |
Requirement |
Result |
|
---|---|---|---|
Summer Grade |
Winter Grade |
||
Watertightness |
No leakage |
Pass |
|
Water immersion/Watertightness |
No leakage |
Pass |
|
Heat aging/Watertightness |
No leakage |
Pass |
|
Chemical aging (NaOH)/Watertightness |
No leakage |
Pass |
|
Chemical aging (acetic acid)/Watertightness |
No leakage |
Pass |
|
UV aging/Watertightness |
No leakage |
Pass |
|
Low temperature flexibility/Watertightness |
No leakage |
Pass |
PropertyFootnote (1) |
Requirement |
Result |
||
---|---|---|---|---|
Summer Grade |
Winter Grade |
|||
Crack bridging |
30 cycles at –20°C 30 cycles at 30°C |
No cracking, breakage, tearing, adhesion failure or other observable failures |
Pass |
|
Water immersion/ Crack bridging |
30 cycles at −20°C 30 cycles at 30°C |
No cracking, breakage, tearing, adhesion failure or other observable failures |
Pass |
|
Heat aging/Crack bridging |
10 cycles at −20°C 10 cycles at 30°C |
No cracking, breakage, tearing, adhesion failure or other observable failures |
Pass |
|
Chemical aging (NaOH)/Crack bridging |
10 cycles at −20°C 10 cycles at 30°C |
No cracking, breakage, tearing, adhesion failure or other observable failures |
Pass |
|
Chemical aging (acetic acid)/Crack bridging |
10 cycles at −20°C 10 cycles at 30°C |
No cracking, breakage, tearing, adhesion failure or other observable failures |
Pass |
|
UV aging/Crack bridging |
10 cycles at −20°C 10 cycles at 30°C |
No cracking, breakage, tearing, adhesion failure or other observable failures |
Pass |
PropertyFootnote (1) |
UnitFootnote (2) |
Requirement |
Result |
|
---|---|---|---|---|
Summer Grade |
Winter Grade |
|||
Peel adhesion |
N/m |
≥ 175 |
1 239 |
1 120 |
Water immersion/Peel adhesion |
N/m |
158 (≥ 90% of 175) |
984 |
367 |
Heat aging/Peel adhesion |
949 |
526 |
||
UV aging/Peel adhesion |
2 581 |
592 |
PropertyFootnote (1) |
UnitFootnote (2) |
RequirementFootnote (3) |
ResultFootnote (4) |
|
---|---|---|---|---|
Summer Grade |
Winter Grade |
|||
Heat aging/Tensile strength |
kN/m |
Summer grade ≥ 10.72 Winter grade ≥ 11.14 (≥ 90% of original value) |
13.00 |
13.08 |
Chemical aging (NaOH)/Tensile strength |
12.85 |
12.28 |
||
Chemical aging (acetic acid)/Tensile strength |
12.12 |
11.93 |
||
UV aging/Tensile strength |
11.96 |
11.93 |
PropertyFootnote (2) |
Requirement |
Result |
|
---|---|---|---|
Summer Grade |
Winter Grade |
||
Water immersion/WatertightnessFootnote (3) |
No leakage |
Pass |
|
Heat aging/WatertightnessFootnote (3) |
No leakage |
Pass |
|
Water immersion/Peel adhesion |
≥ 158 N/m (≥ 90% of 175) |
1 280 |
982 |
Heat aging/Peel adhesion |
1 167 |
516 |
|
UV aging/Peel adhesion |
1 254 |
775 |
|
Lap joint shear test |
No bounding and slippage failure prior to reaching the breaking strength of the membrane |
Pass |
|
Heat aging/Lap joint shear test |
No bounding and slippage failure prior to reaching the breaking strength of the membrane |
Pass |