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Clause No. |
Properties |
Specification |
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Specific Gravity |
1.50 ± 0.05 |
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Hardness, Shore A |
75 ± 5 |
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– |
Tensile Strength, Kg/cm2 |
50 Min. |
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– |
Elongation at Break, % |
200 Min. |
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– |
Colour |
Grey – RAL 7001 |
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Surface Finish |
Fine rib with fabric finish |
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ELECTRICAL PROPERTIES |
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5.5 |
MECHANICAL TESTS |
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5.5.2 |
Mechanical Puncture Test |
Min 70N |
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5.5.3 |
Slip Resistance |
Avg. force higher than 50N |
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5.6.2.2 |
Class |
Proof Test |
Withstand Test |
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5.6.2.3 |
Class – 0 (Thickness 2.0 mm) |
20KV for 3 minutes |
30KV – No electrical puncture |
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5.7 |
Ageing Test At 70 ± 2oC/168Hrs |
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Mechanical Puncture Test |
Should be minimum 80% of original value |
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5.8 |
Thermal Properties |
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5.8.1 |
Flame Retardance |
Flame should not propagate within a 50mm diameter from the centre |
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5.8.2 |
Low Temperature Resistance (4hr at -25 ± 3oC) |
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a) Visual Inspection |
No cracks |
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b) Voltage withstand |
No electrical puncture |
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