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Results of Testing the Performance Properties of the Product

Property

Unit

Requirement

Result

Tensile strength original sample

N/mm

≥ 3.5

26.4

Water vapour original sample

ng/(Pa·s·m2)

170 ≤ WVP ≤ 1 400

429

Water ponding original sample

No leakage

No water leakage

Tensile strength after UV exposure

%

≥ 90% of original

87Footnote (1)

Tensile strength after heat aging of UV exposed specimens

%

≥ 85% of original

85

Water vapour permeance of UV exposed and heat-aged specimens

ng/(Pa·s·m2)

170 ≤ WVP ≤ 2 900

447

Water ponding of UV exposed and heat-aged specimens

No leakage

No water leakage