Operation
3 - 6
Inspect the Coupon
Inspect the narrow sections of the coupon.
The surface finish on all four narrow section holes should be
smooth.
Inspect for notches or gouges in the narrow section holes.
Notches or gouges could effect the test results. If notches or
gouges exist, cut another coupon from the pipe.
It may be helpful to measure the widths of the reduced sections
of the coupon at the inner diameter and the outer diameter of
the pipe with calipers, to ensure that the widths are in proper
relationship to each other.
NOTICE:
Ensure joint temperature and pipe temperature are
the same. Failure to do so may result in a false failing result.
NOTICE:
Temperature substantially affects the strength
and ductility of polyethylene pipe. If results are confusing,
condition samples carefully and retest.
TX04078-02-24-15
Mount the Coupon
After inspection is complete, load the coupon into the clevis and pins
of the tensile tester. Use the pump to move the clevis to align the pins to
the holes of the coupon.
TX04079-5-25-10
PH
04
52
3-
3-
2-11
PH
0415
9-5-
20
-10
PH
0415
5-5-
20
-10
