St Andrews Est-LR040929 American
Rehab & Inspections, INC.
(214) 536-2915
LOW PRESSURE AIR TEST FOR GRAVITY SA
Test prOcedures
Each section of sewer shall be tested between successive manholes.
been r e a c h e~,,~l.~,l~ll~t h e of
Air shall be introduced into the pipeline until 4.0 psi gauge pressure has flow
air shall be reduced and the internal air pressure shall be maintained between 3.5 and 4.5 psi gauge for at least two (2)
minutes to allow the air temperature to come to equilibrium with the temperature of the pipe walls. Pressure in the pipe
shall be constantly monitored by a gauge and hose arrangement separate from the hose used to introduce air into the line.
Pressure in the pipe shall not be allowed to exceed 5 psi.
After the temperature has stabilized and no air leaks at the plugs have been found, the air pressure shall be used
to determine that time lapse required for the air pressure to drop to 2.5 psi gauge.
If the time lapse required for the air pressure to decrease from 3.5 to 2.5 psi exceeds that shown in the following
table, the pipe shall be presumed to be within acceptable limits for leakage.
lfthe time lapsed is less than that shown in the table, the contractor shall make corrections to reduce the leakage
to acceptable limits.
Line Information Test Results Air Test Mandrel
Line Station to StationPipe size L.F. Tested Time Passed ? Passed ?
A 2+36 - 0+00 8" 231 7 M1N YES YES
B 8+57 - 4+50 8" 403 7 MIN YES YES
B 4+50 - 0+00 8" 454 7 MIN YES YES
Contractor:
Project:
RPM Date: 09-29-04
ST. ANDREWS ESTATES ~' Job#:
Tested By:
Inspector:
WILL DENTON
~Y DAVIS
City Off
COPPELL