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Results of Testing the Performance Requirements of the Product

Property

Unit

Requirement

Result

Tensile strength

N/mm

≥ 3.5

4.27

Breaking force

N

≥ 180 MDFootnote (1) ≥ 160 XD

441.7 MD 354.0 XD

Water vapour permeance

ng/Pa·s·m2

≥ 170

406

Water ponding (original)

No leakage

Pass

Tensile strength after UV exposure

% retention of original

≥ 90

93.9%

Tensile strength after UV exposure and heat aging

% retention of original

≥ 85

120%

Water vapour permeance after UV exposure and heat aging

ng/Pa·s·m2

≥ 170

315

Water ponding after UV exposure and heat aging

No leakage

Pass

Result of Testing the Water Vapour Permeance of the Product

Property

Unit

Requirement

Result

Water vapour permeance with NBC required directionality

ng/Pa·s·m2

≥ 60

77.0Footnote (1)