|
|
| Physical
and Mechanical Properties of MDPE(Gas) Pipes |
| Sr. |
Charecteristics |
Units |
Requirements |
Test
Parameters |
Test
methods |
| 1 |
Conventional
Density |
Kg/c3 |
>930(base
polymer) |
23
degree C |
ISO
1183, ISO 1872/1 |
| 2 |
Melt
Flow Rate |
G/10
min |
|
190
degree C/5kg |
ISO
4440/1, IS 2530:1963 |
| 3 |
Thermal
stability |
Min |
>20 |
200
degree C |
ISO/TR
10837 |
| 4 |
Hydrostatic
Strength(HS) |
h |
Failure
Time>=100h
Failure Time>=165h
Failure Time>=1000h |
PE-80-9.0
MPa - 20C
PE-80-4.6 M Pa - 80 C
PE-80-4.0 M Pa - 80 C |
ISO-1167 |
| 5 |
Elongation
at Break |
% |
>=350 |
|
ISO
6259/3 |
|
|
 |
