pressure piping is used in a nonpressure line for nonpressure use, test
this piping as specified for nonpressure pipe.
3.2.2.1
Leakage Tests
Test lines for leakage by either infiltration tests or exfiltration tests,
or by low-pressure air tests. Prior to testing for leakage, backfill
trench up to at least lower half of pipe. When necessary to prevent
pipeline movement during testing, place additional backfill around pipe
sufficient to prevent movement, but leaving joints uncovered to permit
inspection. When leakage or pressure drop exceeds the allowable amount
specified, make satisfactory correction and retest pipeline section in the
same manner. Correct visible leaks regardless of leakage test results.
a.
Infiltration tests and exfiltration tests: Perform these tests
for sewer lines made of the specified materials, not only
concrete, in accordance with ASTM C 969M ASTM C 969. Make
calculations in accordance with the Appendix to ASTM C 969M ASTM C
969.
b.
Low-pressure air tests:
Perform tests as follows:
(1) Clay pipelines: Test in accordance with ASTM C 828.
Allowable pressure drop shall be as given in ASTM C 828. Make
calculations in accordance with the Appendix to ASTM C 828.
(2) Concrete pipelines: Test in accordance with ASTM C 924M ASTM
C 924. Allowable pressure drop shall be as given in ASTM C 924M
ASTM C 924. Make calculations in accordance with the Appendix to
ASTM C 924M ASTM C 924.
(3) Ductile-iron pipelines: Test in accordance with the
applicable requirements of ASTM C 924M ASTM C 924. Allowable
pressure drop shall be as given in ASTM C 924M ASTM C 924. Make
calculations in accordance with the Appendix to ASTM C 924M ASTM C
924.
(4) ABS composite plastic pipelines: Test in accordance with the
applicable requirements of UBPPA UNI-B-6. Allowable pressure drop
shall be as given in UBPPA UNI-B-6. Make calculations in
accordance with the Appendix to UBPPA UNI-B-6.
(5) PVC plastic pipelines: Test in accordance with UBPPA UNI-B-6.
Allowable pressure drop shall be as given in UBPPA UNI-B-6. Make
calculations in accordance with the Appendix to UBPPA UNI-B-6.
3.2.2.2
Deflection Testing
**************************************************************************
NOTE: Specify deflection testing only when
warranted by scope or size of project.
**************************************************************************
Perform a deflection test on entire length of installed plastic pipeline on
completion of work adjacent to and over the pipeline, including leakage
tests, backfilling, placement of fill, grading, paving, concreting, and any
other superimposed loads determined in accordance with ASTM D 2412.
Deflection of pipe in the installed pipeline under external loads shall not
exceed 4.5 percent of the average inside diameter of pipe. Determine
SECTION 02531
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