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Results of Testing the Performance Requirements of the Product

Property

Unit

Requirement

Result

Sheet width

Tolerance: –6 mm of specified width

Pass

Tensile strength

N/mm

≥ 3.5

9.28

Water vapour permeance

ng/Pa·s·m2

≥ 170

876

Water ponding of original samples

No leakage

PassFootnote (1)

Tensile strength after UV exposure

% retention of original

≥ 90

97.2

Tensile strength after UV and heat aging

% retention of original

≥ 85

99.8

Water vapour permeance after UV exposure and heat aging

ng/Pa·s·m2

≥ 170

1 275

Water ponding after UV exposure and heat aging

No leakage

PassFootnote (1)