| 1 |
Tensile Strength and Elongation at break : |
|
|
| |
Minimum Tensile strength |
N/mm² |
12.5 |
| |
Minimum Elongation at break |
% |
150 |
| 2 |
Low temperature bend test : |
|
|
| |
Temperature at which specimen shall not crack |
°C |
-15 ± 2 |
| 3 |
Low temperature elongation test : |
|
|
| |
Test temperature |
°C |
-15 ± 2 |
| |
Minimum Elongation |
% |
20 |
| 4 |
Low temperature impact test : |
|
|
| |
Test temperature |
°C |
- |
| |
Minimum Elongation |
|
|
| 5 |
Accelerated ageing for specified at specified temperature followed by loss of mass test : |
|
|
| |
Max. loss of mass, after ageing 7 days at 80 ± 2 °C |
mg/cm² |
- |
| 6 |
Accelerated ageing for specified period at specified temperature followed by tensile strength & elongation at break |
|
|
| |
Number of days ageing |
Days |
7 |
| |
Ageing temperature |
°C |
100 ± 2 |
| |
Tensile Strength after ageing : |
|
|
| |
Min. value |
N/mm² |
12.5 |
| |
Max. Variation |
% |
25 |
| |
Elongation at break after ageing |
|
|
| |
Min. value |
% |
150 |
| |
Max. variation from unaged value |
% |
25 |
| 7 |
Pressure test at high temperature : |
|
|
| |
Test temperature |
°C |
80 ± 2 |
| |
Max. indentation |
% |
50 |
| 8 |
Resistance to cracking : |
|
|
| |
Temperature at which specimen shall not crack |
°C |
150 ± 2 |
| 9 |
Insulation resistance constant : |
|
|
| |
Min. K. value at 70 °C |
M.Ohm.km |
- |
