| NO. |
Items |
Performance requirements |
| 1 |
Volutary standards |
GB/T10002.1-1996 |
| 2 |
Appearance |
Both the inside and outside surfaces of the pipe should be smooth, without pit,decomposition,discoloration or other surface defects that affect the performance.The pipe should not contain visible impurities.The end face of the pipe should be cut even,and plumb to the axial line.Thecolor is gray of white. |
| 3 |
Specifications(outside diameter,wall thickness) |
On gauge |
| 4 |
Density |
1350¡«1460 |
| 5 |
Veika softening temperature |
¡Ý80 |
| 6 |
Longitudinal reversion rate |
¡Ü5 |
| 7 |
Dichloromethane soakage |
Surface uniformity |
| 8 |
Falling weight impact test |
¡Ü5 |
| 9 |
Hydraulic test |
Without crack or leakage |
| 10 |
Joint packing test |
Without crack or leakage |
| 11 |
Extraction value of lead |
The first extraction¡Ü1.0mg/L |
| 12 |
Extraction value of lead |
The second extraction¡Ü0.3mg/L |
| 13 |
Extraction value of tin |
The third extraction¡Ü0.02mg/L |
| 14 |
Extraction value of cadmium |
Three extractions,every time¡Ü0.01mg/L |
| 15 |
Extraction value of mercury |
Three extractions,every time¡Ü0.01mg/L |
| 16 |
Vinyl chloride monomer(VCM) content |
¡Ü1.0mg/kg |
| 17 |
Length |
General length is four meters and six meters pipes or sleeves.But delivery of goods can be made on client's request. |
