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Results of testing of performance requirements for the products
Properties			Requirements	Results
Properties			Requirements	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
Side water flow			< 15 minutes	3 seconds	3 seconds
Original ^{Footnote (1)}		tensile strength at yield (kN/m)	≥ 8	13	15
Original ^{Footnote (1)}		elongation at break (%)	≥ 25	930	911
Water immersion ^{Footnote (1)}		tensile strength at yield (%)	≥ 80 of original	116	104
Water immersion ^{Footnote (1)}		elongation at break (%)	≥ 70 of original	105	94
Heat aging ^{Footnote (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
	ammonium chloride	elongation at break (%)	≥ 70 of original	105	128
	sodium sulfate	tensile strength at yield (%)	≥ 80 of original	111	101
	sodium sulfate	elongation at break (%)	≥ 70 of original	105	128
Compressive strength (kN/m² )			≥ 100	335	290

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