|
PropertyProperty |
Test Frequency |
Responsibility |
Test Method |
|
1. |
Mandrel OD |
1 per machine set-up |
Q.C. Inspector |
QW 12 |
|
2. |
Pipe stiffness "Hoop Flexural Properties" |
Once per production lot or once per day* |
Q.C. Mechanical properties inspector |
QW 03 |
|
3. |
Loss on Ignition |
-ditto- |
-ditto- |
QW 04 |
|
4. |
Hoop tensile strength |
-ditto- |
-ditto- |
QW 02 |
|
5. |
Axial tensile strength |
-ditto- |
-ditto- |
QW 01 |
|
6. |
Wall Thickness |
Each pipe end 4 points 90 deg. apart. |
Q.C. Machine Inspector |
Micrometer |
|
7. |
Pipe cut length |
Each pipe |
-ditto- |
Steel Tape |
|
8. |
Internal Barcol Hardness |
Each pipe, avg. of 4 points |
-ditto- |
QW 13 |
|
9. |
100% exterior visual |
Each pipe |
-ditto- |
Visual |
|
10. |
100% internal visual |
Each Pipe |
-ditto- |
Visual |
|
11. |
Spigot Outside Dia. |
Each pipe end |
-ditto- |
Pi-Tape |
|
12. |
Machine Process Audit |
Daily |
Production Supervisor & Process Engineer |
Witness & record outputs on glass, resin catalyst, mandrel, & Chopper speed. |
|
13. |
Hydrostatic test ** |
Each pipe up to 2000 mm diameter |
Production H.T. Opr. + Q.C. Inspector |
Hydrostatic pressure:
- Up to 1500mm: 1.5xPc
- 1600mm to 2000mm:1xPc
- Above 2000mm: not Required or as otherwise Instructed by PM.
|
|
14. |
Marking |
Each pipe |
Q.C. Inspector |
Visual |
|
15. |
Repairs |
Each Repair |
Q.C. Inspector |
Visual |
