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From [Institution name]
Property | Unit | Requirement |
---|---|---|
Thickness, sheet-overall Footnote (1) | mm | ≥ 1.0 |
Coating over fabric or scrim, weathering side only | mm | ≥ 0.38 |
Breaking strength | N | ≥ 976 |
Elongation at reinforcement break | % | ≥ 15 |
Tearing strength | N | ≥ 245 |
Brittleness point Footnote (2) | ˚C | ≤ –40 |
Ozone resistance (visual inspection) | n/a | no cracks |
Retention of properties after heat aging Footnote (3) - breaking strength | % | ≥ 90 |
Retention of properties after heat aging Footnote (3) - elongation at reinforcement break | % | ≥ 90 |
Retention of properties after heat aging Footnote (3) - tearing strength | % | ≥ 60 |
Retention of properties after heat aging Footnote (3) - weight change (mass) | % | ≤ ±1 |
Linear dimensional change | % | ≤ ±1 |
Factory seam strength | N | ≥ 290 |
Weather resistance (visual inspection) Footnote (3) | n/a | no cracks or crazing |
Water absorption (mass increase) Footnote (4) | % | ≤ ±3 |