Mansions Phase 1-LR 980128 (4) , -'~ltili~y & Environmental Services, Ina. ·
LOW PRESSURE AIR TEST FOR GRAVITY SANITARY SEWER
Test Procedure:
Each section of sewer shall be tested between successive manholes.
Air shall be introduced into the pipeline until 4.0 psi gauge pressure has been reached. At that time the flow of 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 $ psi.
After the temperature has stabilized and no air leaks at the plugs have been found, the air pressure shall be used to
determine the 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 form 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.
If the time lapsed is less than that shown in the table, the contractor shall make corrections to reduce the leakage to
acceptable limits.
I Line Information Test Results ]Air Test I Mandrel
UTILITY & ENVIRONMENTAL SERVICES, INC.
1965 CALIFORNIA CROSSING DALLAS, TEX. 75220'
PH. 972-556-2913 FAX 972-556-1614
T[~T PROC{:DpRE
IAi-H SFCTiON OF SEWER SHALL BE TESTED BETWEEN SUCCESSIVE MANHOLES ..
Air ~hall be introduced into the pipeline until 4.0 psi gauge pressure has been reached. At that time the flow of ear 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 temperature lo come to equilib#um with the temperature of the pipe walls. Pressure in the pipe shall be constantly
monitored by · gauge and hose arrangement separate from the hose used to introduce air into the lines. PRESSURE IN
THI= PIPF SHALL NOT BE ALLOWED TO EXCEED 5 P.S.I.
A fterthe temperature has stabilized and no air leaks at the plugs have been found, the air pressure shall be used to determine
thetime lep~ reqtdred for the air pressure to drop to 2.5 p.s.i.
ff Uie time ~ required for the air pressure to decrease form 3. 5 to 2.5 psi. exceeds that shown in the following table, the
pipe ~ be ~ to be within acceptable limits for leakage.
If the time lapsed is lass than that shown in the table, the contrractor shall make corrections lo reduce the leakage to
~-IN~ INFORMATION TEST RESULTS AIR TEST MANDRELL
LIN~ STATION TO STATION PIPE SIZE ,..F. TESTED TIME =ASSED PASSED
,~+ ~ t - -/+ ~{~ ~" l-~ ~ ~ v~ ,-~
~'~tility & Environmental Services, In,-.
LOW PRESSURE AIR TEST FOR GRAVITY SANITARY SEWER
Test Procedure:
Each section of sewer shall be tested between successive manholes.
Air shall be introduced into the pipeline until 4.0 psi gauge pressure has been reached. At that time the flow of 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 ill 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 the time lapse required for the air pressure to drop to 2.5 psi gauge.
If the time lapse required for the ah' pressure to decrease form 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.
If the time lapsed is less than that shown in the table, the contractor shall make corrections to reduce the leakage to
acceptable limits.
Line Information I Test Results I Air TestI Mandrel
Line [Station to Station I?ipe Size ]L.F. Tested [Time ]Passed? I Passed? I
o/-o c] g" ?:93 Y
of Utility & Environment~ Services, Inc.
UTILITY & ENVIRONMENTAL SERVICES, INC.
1965 CALIFORNIA CROSSING DALLAS, TEX. 75220'
PH. 972-556-2913 FAX 972-556-1614
TF~T PROC~:D~IRF
F~K;H SFC;TION OF SEWER SHALL BE TESTED BETWEEN SUCCESSIVE MANHOLES ,.
Air shall be introduced into the pipeline until 4.0 psi gauge pressure has been reached. At that time the flow of 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 temperature to come to equilib#um with the temperature of the pipe walls. Pressure in the pipe shall be constantly
fnonitored by · gauge and hose arrangement separate from the hose used to introduce air into the lines. PRESSURE IN
THI= PIPF SHALL NOT BE ALLOWED TO EXCEED 5 P.S.I.
A liar the temperature has stabilized and no air leaks at the plugs have been found, the air pressure shall be used to determine
g~etime lal~e required for the air pressure to drop to 2.5 p.s.i.
ff lhe time lapse required for the air pressure to decrease form 3.5 to 2.5 psi. exceeds that shown in the following table, the
pipe she8 be pmm~med to be within acceptable limits for leakage.
ff the time lapsed is less than that shown in the table, the contrraclor shatl make corrections to reduce the leakage to
= INFORII~TION TEST RESULTS AIR TEST MANDRELL
L~E STATION TO STATION PIPE SIZE ..F. TESTED TIME =ASSED PASSED