| 1 |
Tensile Strength and Elongation at break : |
|
|
| |
Minimum Tensile strength |
N/mm² |
9 |
| |
Minimum Elongation at break |
% |
125 |
| 2 |
Properties after ageing for specified period at specified temperature followed by tensile strength and elongation at break test |
|
|
| |
Number of days ageing |
|
7 |
| |
Ageing temperature |
°C |
100 ± 2 |
| |
Tensile Strength after ageing : |
|
|
| |
Minimum value |
N/mm² |
9 |
| |
Maximum variation |
% |
40 |
| |
Elongation at break after ageing : |
|
|
| |
Minimum Value |
% |
100 |
| |
Maximum variation from unaged value |
% |
40 |
| 3 |
Low temperature bend test : |
|
|
| |
Temperature at which specimen shall not crack |
°C |
-15 ± 2 |
| 4 |
Low temperature elongation test : |
|
|
| |
Test temperature |
°C |
-15 ± 2 |
| |
Minimum Elongation |
% |
20 |
| 5 |
Low temperature impact test : |
|
|
| |
Temperature at which specimen shall not crack |
°C |
-15 ± 2 |
| 6 |
Pressure test at high temperature : |
|
|
| |
Test temperature |
°C |
80 ± 2 |
| |
Maximum indentation |
% |
50 |
| 7 |
Water Absorption |
|
|
| |
Ageing : Number of hours |
|
24 |
| |
Ageing temperature |
°C |
70 ± 2 |
| |
Maximum increase in Mass |
mg/cm² |
10 |
| 8 |
Acidic emission and corrosive gases evolved |
|
|
| |
Level of HCI |
% |
< 0.5 |
| |
Fluorine Content |
% |
< 0.1 |
| |
pH Minimum |
|
4.3 |
| |
Conductivity |
m S/mm |
10 |
