ASTM C1244-05ae1
(Test Method)Standard Test Method for Concrete Sewer Manholes by the Negative Air Pressure (Vacuum) Test Prior to Backfill
Standard Test Method for Concrete Sewer Manholes by the Negative Air Pressure (Vacuum) Test Prior to Backfill
SIGNIFICANCE AND USE
This is not a routine test. The values recorded are applicable only to the manhole being tested and at the time of testing.
SCOPE
1.1 This test method covers procedures for testing precast concrete manhole sections when using the vacuum test method to demonstrate the integrity of the installed materials and the construction procedures. This test method is used for testing concrete manhole sections utilizing mortar, mastic, or gasketed joints.
1.2 This test method is intended to be used as a preliminary test to enable the installer to demonstrate the condition of the concrete manholes prior to backfill.
1.3 This standard does not purport to address all of the safety problems, 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.
1.4 This test method is the companion to metric Test Method C 1244M; therefore, no SI equivalents are shown in this test method.
Note 1—Vacuum test criteria presented in this test method are similar to those in general use. The test and criteria have been widely and successfully used in testing manholes.
Note 2—The user of this test method is advised that no correlation has been found between vacuum (air) and hydrostatic tests.
General Information
Relations
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: C1244 – 05a
Standard Test Method for
Concrete Sewer Manholes by the Negative Air Pressure
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(Vacuum) Test Prior to Backfill
This standard is issued under the fixed designation C1244; 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 (´) indicates an editorial change since the last revision or reapproval.
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´ NOTE—Table 1 was reformatted editorially in February 2006.
1. Scope C969 Practice for Infiltration and Exfiltration Acceptance
Testing of Installed Precast Concrete Pipe Sewer Lines
1.1 This test method covers procedures for testing precast
C1244M Test Method for Concrete Sewer Manholes by the
concrete manhole sections when using the vacuum test method
Negative Air Pressure (Vacuum) Test Prior to Backfill
to demonstrate the integrity of the installed materials and the
(Metric)
construction procedures. This test method is used for testing
concrete manhole sections utilizing mortar, mastic, or gasketed
3. Terminology
joints.
3.1 For definitions of terms relating to manholes, see
1.2 This test method is intended to be used as a preliminary
Terminology C822.
test to enable the installer to demonstrate the condition of the
concrete manholes prior to backfill.
4. Summary of Practice
1.3 This standard does not purport to address all of the
4.1 All lift holes and any pipes entering the manhole are to
safety problems, if any, associated with its use. It is the
be plugged.Avacuum will be drawn and the vacuum drop over
responsibility of the user of this standard to establish appro-
a specified time period is used to determine the acceptability of
priate safety and health practices and determine the applica-
the manhole.
bility of regulatory limitations prior to use.
1.4 This test method is the companion to metric Test
5. Significance and Use
Method C1244M; therefore, no SI equivalents are shown in
5.1 This is not a routine test. The values recorded are
this test method.
applicable only to the manhole being tested and at the time of
NOTE 1—Vacuum test criteria presented in this test method are similar
testing.
to those in general use. The test and criteria have been widely and
successfully used in testing manholes.
6. Preparation of the Manhole
NOTE 2—The user of this test method is advised that no correlation has
6.1 All lift holes shall be plugged.
been found between vacuum (air) and hydrostatic tests.
6.2 All pipes entering the manhole shall be temporarily
2. Referenced Documents plugged, taking care to securely brace the pipes and plugs to
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prevent them from being drawn into the manhole.
2.1 ASTM Standards:
C822 Terminology Relating to Concrete Pipe and Related
7. Procedure
Products
7.1 The test head shall be placed at the top of the manhole
C924 Practice for Testing Concrete Pipe Sewer Lines by
in accordance with the manufacturer’s recommendations.
Low-Pressure Air Test Method
7.2 A vacuum of 10 in. Hg shall be drawn on the manhole,
the valve on the vacuum line of the test head closed, and the
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This test method is under the jurisdiction of ASTM Committee C13 on
vacuum pump shut off. The time shall be measured for the
Concrete Pipe and is the direct responsibility of Subcommittee C13.06 on Manholes
vacuum to drop to 9 in. Hg.
and Specials.
7.3 The manhole is acceptable if the time for the vacuum
Current edition approved Oct. 1, 2005. Published November 2005. Originally
reading to drop from 10 in. Hg to 9 in. Hg meets or exceeds the
approved in 1993. Last previous edition approved in 2005 as C1244 – 05. DOI:
10.1520/C1244-05AE01.
values indicated in Table 1.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
7.4 If the manhole fails the initial test, the manhole shall be
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
repaired by an approved method until a satisfactory test is
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. obtained.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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C1244 – 05a
TABLE 1 Minimum Test Times for Various Manhole Diameters TABLE 1 Minimum Test Times for Various Manhole Diameters
(30 – 120 in.) in Seconds (30 – 120 in.) in Seconds (continued)
Diameter, in. Diameter, in.
Depth (ft) Depth (ft)
30 33 36 42 48 54 60 66 72 78 84 90 96 102 108 114 120
Time, in seconds Time, in seconds
<4 6 7 7 9 10 12 13 15 16 <4 18 19 21 23 24 25 27 29
6 9 10 11 13 15 18 20 22 25 6 26 2931 34 3638 41 43
811 12 14 17 20 23 26 29 33 8 35 3841 45 4851 54 57
10 14 15 18 21 25 29 33 36 41 10 44 48 52 56 60 63 67 71
12 17 18 21 25 30 35 39 43
...
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