ASTM C1214-94(2000)
(Test Method)Standard Test Method for Concrete Pipe Sewerlines by Negative Air Pressure (Vacuum) Test Method
Standard Test Method for Concrete Pipe Sewerlines by Negative Air Pressure (Vacuum) Test Method
SCOPE
1.1 This test method covers procedures for testing concrete pipe sewerlines, when using the negative air pressure (vacuum) test method to demonstrate the integrity of the installed material and the construction procedures. This test method covers testing of 4 to 36-in. diameter circular concrete pipe sewerlines utilizing gasketed joints.
1.2 Methods described in this test method may also be used as a preliminary test to enable the manufacturer or installer to demonstrate the condition of sewer pipe prior to delivery or backfill. Minimum test times presented in are for pipelines. Holding times for testing an individual pipe may have to be increased to allow for the accumulation of leakage when the tested pipe are incorporated into a continuous pipeline.
1.3 A complete metric companion to Test Method C1214 has been developed-C 1214M; therefore, no metric equivalents are presented in this test method.
Note 1--The negative air pressure (vacuum) test criteria presented in this test method are similar to those in general use. The test and criteria have been used widely and successfully in testing smaller diameter pipe. Larger pipe may be accepted more conveniently by visual inspection and individual joint testing.
Note 2--It should be understood that no correlation has been found between loss of vacuum and water leakage.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. See Section 6 for specific safety precautions.
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: C 1214 – 94 (Reapproved 2000)
Standard Test Method for
Concrete Pipe Sewerlines by Negative Air Pressure
(Vacuum) Test Method
This standard is issued under the fixed designation C 1214; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
TABLE 1 Minimum Test Time
1. Scope
Nominal Nominal
1.1 This test method covers procedures for testing concrete
T (Time), T (Time),
Pipe Pipe
min/100 ft min/100 ft
pipe sewerlines, when using the negative air pressure (vacuum)
Size, in. Size, in.
test method to demonstrate the integrity of the installed
4 0.3 21 3.0
material and the construction procedures. This test method
6 0.7 24 3.6
8 1.2 27 4.2
covers testing of 4 to 36-in. diameter circular concrete pipe
10 1.5 30 4.8
sewerlines utilizing gasketed joints.
12 1.8 33 5.4
1.2 Methods described in this test method may also be used 15 2.1 36 6.0
18 2.4
as a preliminary test to enable the manufacturer or installer to
demonstrate the condition of sewer pipe prior to delivery or
backfill. Minimum test times presented in Table 1 are for
pipelines. Holding times for testing an individual pipe may
C 969 Practice for Infiltration and Exfiltration Acceptance
have to be increased to allow for the accumulation of leakage
Testing of Installed Precast Concrete Pipe Sewer Lines
when the tested pipe are incorporated into a continuous
pipeline.
3. Terminology
1.3 A complete metric companion to Test Method C 1214
3.1 Definitions—For definitions of terms relating to con-
has been developed—C 1214M; therefore, no metric equiva-
crete pipe, see Terminology C 822.
lents are presented in this test method.
4. Summary of Test Method
NOTE 1—The negative air pressure (vacuum) test criteria presented in
this test method are similar to those in general use. The test and criteria
4.1 The sewerline to be tested is plugged. Air is removed
have been used widely and successfully in testing smaller diameter pipe.
from the plugged line by a vacuum pump or vacuum reservoir.
Larger pipe may be accepted more conveniently by visual inspection and
The amount of vacuum loss is used to determine the accept-
individual joint testing.
ability of the sewerline.
NOTE 2—It should be understood that no correlation has been found
between loss of vacuum and water leakage.
5. Significance and Use
1.4 This standard does not purport to address all of the
5.1 This is not a routine test. The values recorded are
safety concerns, if any, associated with its use. It is the
applicable only to the sewer being tested and at the time of
responsibility of the user of this standard to establish appro-
testing.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. See Section 6 for
6. Safety Precautions
specific safety precautions.
6.1 This test may be dangerous if a line is not prepared
properly and proper procedures are not followed.
2. Referenced Documents
6.2 Access manholes or structures must be ventilated and air
2.1 ASTM Standards:
quality continuously monitored.
C 822 Terminology Relating to Concrete Pipe and Related
6.3 No one should be allowed in or near the manholes
Products
during testing.
C 924 Practice for Testing Concrete Pipe Sewer Lines by
Low-Pressure Air Test Method
7. Preparation of the Sewerline
7.1 Where practical, clean the line prior to testing, wet the
pipe surface, and eliminate debris.
This test method is under the jurisdiction of ASTM Committee C13 on
Concrete Pipe and is the direct responsibility of Subcommittee C13.09 on Methods
NOTE 3—A wetted exterior pipe surface is desirable and will produce
of Test.
more consistent test results. Air may pass through the walls of dry pipe.
Current edition approved July 15, 1994. Published September 1994. Originally
e1
This can be overcome by wetting the pipe. Usually, moisture absorbed
published as C 1214–92. Last previous edition C 1214–92 .
Annual Book of ASTM Standards, Vol 04.05. from the backfill is sufficient to cope with this situation. If the problem
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NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
C 1214
persists, segmental testing of the line will establish if there is a significant
8.2 Evacuate air until the internal air pressure of the
leak.
sewerline is lowered by approximately 8 in. of mercury. Close
the valve on the vacuum line and shut off the vacuum pump.
7.2 Plug all pipe outlets including laterals. Review safety
Allow the air pressure to stabilize.
precautions in Section 6.
8.3 When the pressure has stabilized and is at or below the
starting test vacuum of 7 in. of mercury, commence the test by
8. Procedure
allowing the gage pressure to drop to 7 in. of mercury, at which
8.1 Determine the test time for the sewerline to be tested by
point the time recording is initiated. Record the drop in vacuum
using Table 1. Table 1 has been established using the criteria
for the test period.
specified in Table 2 and the formulas contained in the Appen-
8.4 If the drop in vacuum is 2 in. of mercury or less during
dixes. The test time is the time required for the vacuum to drop
the test period, accept the line. If the drop in vacuum is more
from 7 to 5 in. of mercury.
than 2 in. of mercury during the test period, inspect, evaluate,
NOTE 4—To provide satisfactory test results, the vacuum pump should and retest the line to determine the cause of excessive vacuum
be capable of evacuating the sewer test section in the required test time,
loss.
or less, as determined by 8.1. The pump capacity required to accomplish
8.5 Use or failure of this vacuum test shal
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