| 1 |
Tensile Strength and Elongation at break: |
|
|
| |
Min Tensile strength |
N/mm² |
12.5 |
| |
Min elongation at break |
% |
125 |
| 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 |
| |
Min. Elongation |
% |
20 |
| 4 |
Accelerated ageing for specified at specified temperature followed by loss of mass test: |
|
|
| |
Max. loss of mass after ageing 10 days at 115 ± 2 °C |
mg/cm² |
1.5 |
| 5 |
Accelerated ageing for specified period specified temperature followed by tensile strength & elongation at break |
|
|
| |
Number of Days ageing |
Days |
10 |
| |
Ageing Temperature |
°C |
135 ± 2 |
| |
Tensile Strength after ageing: |
|
|
| |
Min. value |
N/mm² |
12.5 |
| |
Max. variation |
% |
25 |
| |
Elongation at break after ageing: |
|
|
| |
Min. value |
% |
125 |
| |
Max. variation from unaged value |
% |
25 |
| 6 |
Pressure test at high temperature: |
|
|
| |
Test temperature |
°C |
95 ± 2 |
| |
Max. indentation |
% |
50 |
| 7 |
Resistance to cracking |
|
|
| |
Temperature at which specimen shall not crack |
°C |
150 ± 2 |
| 8 |
Insulation resistance constant: |
|
|
| |
Min. K. value at 20°C |
M.Ohm.km |
180 |
