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Test descriptions Repeated tests.

• Trial 1, Air infiltration at 20˚C
• Trial 2, Resistance to water penetration at 20˚C
• Trial 3, Air infiltration at -30˚C

After each of the sequences of opening and closing cycles

• 500 cycles / tests repeat 1, 2 and 3
• 500 cycles / tests repeat 1, 2 and 3
• 1000 cycles / tests repeat 1, 2 and 3
• 2500 cycles / tests repeat 1, 2 and 3