| A. |
Raw Material |
Requirement |
Reference |
|
Designation (MRS) |
6.3, 8.0 & 10 Mpa at 20ºC |
IS;14151(pt-1); 1999 |
|
Melt Flow Rate (I5) |
0.2 to 1.10 Gm/10 min. at 190º C |
IS;14151(pt-1); 1999 |
|
Density |
940.4 to 958.4 Kg/cm3 |
IS;14151(pt-1); 1999 |
| B. |
Dimension |
As per table |
IS;14151(pt-1); 1999 |
|
Length |
3.0 to 6.0m or as agreed between manufacturer and Purchaser. |
IS 14151 (pt-1): 1999 |
|
Visual Appearance (Surface Finish) |
Satisfactory |
IS 14151 (pt-1): 1999 |
| C. |
Performance Requirement |
|
|
|
Heat Reversion Test |
Max 3% |
IS 14151 (pt-1): 1999 |
|
Hydrostatic Pressure Resistance Test |
QUALITY TEST |
IS 14151 (pt-1): 1999 |
|
|
Duration: 165 hrs. at 80ºC, Stress Values : 3.5 Mpa |
|
|
|
ACCEPTANCE TEST |
|
|
|
Duration : 48 hrs at 80º C ,Stress Values: 3.8 Mpa |
|
|
Fusion Compatibility Test |
QUALITY TEST |
IS 14151 (pt-1): 1999 |
|
|
Duration: 165 hrs at 80º C, Stress Values : 3.5 Mpa |
|
|
|
ACCEPTANCE TEST |
|
|
|
Duration : 48 hrs 80º C, Stress Values : 3.8 Mpa |
|
|
Melt Flow Rate (I5) |
0.2 to 1.10 (both inclusive) Gm/10 min. |
IS 2530 : 1963 |
|
Carbon Black Content & Dispersion |
2.5 ± 0.5% |
IS 2530 : 1963 |
|
Tensile Test |
19 Mpa(T/S) 500%(Elongation) |
IS 14151 (pt-1): 1999 |
|
Workmanship and Appearance |
Satisfactory |
IS 14151 (pt-2): 1999 |
|
Bearing Capacity of Holding Attachment |
The holding attachment is strong enough to withstand the pressure two times the working pressure of pipe. |
IS 14151 (pt-2): 1999 |
|
Leakage Test |
without leakage |
IS 14151 (pt-2): 1999 |
|
Hydraulic Proof Test |
The assembly shall not show any sign of localized swelling, leakage, weeping or deformation and shall not burst during the test. |
IS 14151 (pt-2): 1999 |
|
Weldability Test |
QUALITY TEST |
IS 14151 (pt-2): 1999 |
|
|
Duration: 165 hrs. at 80ºC Stress Values : 3.5Mpa |
|
|
|
ACCEPTANCE TEST |
|
|
|
Duration : 48 hrs at 80ºC Stress Values: 3.8 Mpa |
|
| D. |
Identification & Marking |
Colour: Black. All pipes shall be indelibly marked by hot foil embossing as per Colour code |
IS 14151: 1999 |
|
|
Class-1—–Orange |
|
|
|
Class-2——Red |
|
|
|
Class-3——Blue |
|
|
|
Class-4——-Green |
|
