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Results of Testing of the Performance Requirements for the Products

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

Water vapour permeance (ng/Pa·s·m2 )

≤ 37.2

4.66

4.29

OriginalFootnote (1)

tensile strength at yield (kN/m)

≥ 8

13

15

elongation at break (%)

≥ 25

930

911

Water immersionFootnote (1)

tensile strength at yield (%)

≥ 80 of original

116

104

elongation at break (%)

≥ 70 of original

105

94

Heat agingFootnote (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

Chemical attack exposure (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