| NO. |
|
Items |
|
Performance
requirements |
| 1 |
Voluntary
standards |
Production
and inspection are carried out according to the
enterprise standard of Q/ZCP010-2000,also referring
to the standard of YD/T841-96 by the Ministry
of Post & Telecommunications,and the trade
standard of QB/T1916-93. |
| 2 |
Appearance |
Both
the inside and outside surfaces of the pipe are
not allowed to have blisters,crackles,overt impurities
or irregular ripples.The inner surface should
be smooth,without overt ripples or decompounded
discoloration lines.Both ends of the pipe should
be cut flat and vertical to the axial line.The
color is yellow. |
| 3 |
Loop
piece rigidity |
S1¡Ý4
S2¡Ý8
S3¡Ý16 |
| 4 |
Flat
test |
There
should be no breaks,The two wall do not come away |
| 5 |
Falling
weight impact test |
¡Ü10 |
| 6 |
Connection
point penetrability |
No
leakage |
| 7 |
Oven
test |
Neither
lamination nor craze |
| 8 |
Veika
softening temperature |
¡Ý79 |
| 9 |
Dichloromethane
steeping |
Inside
and outside walls do not separate.There is no
obvious burrs or fractures. |
