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ASTM C1244M-05

(Test Method)

Standard Test Method for Concrete Sewer Manholes by the Negative Air Pressure (Vacuum) Test Prior to Backfill (Metric)

Standard Test Method for Concrete Sewer Manholes by the Negative Air Pressure (Vacuum) Test Prior to Backfill (Metric)

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.
1.3 This test method is the companion to inch-pound Test Method C 1244. 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
It should be understood that no correlation has been found between vacuum (air) and hydrostatic tests.

General Information

Status
Historical
Publication Date
31-Dec-2004
ICS
93.030 - External sewage systems
Technical Committee
C13 - Concrete Pipe
Drafting Committee
C13.06 - Manholes and Specials
Current Stage
Ref Project

Relations

Replaces
ASTM C1244M-04 - Standard Test Method for Concrete Sewer Manholes by the Negative Air Pressure (Vacuum) Test Prior to Backfill (Metric)
Effective Date
01-Jan-2005
Replaced By
ASTM C1244M-05a - Standard Test Method for Concrete Sewer Manholes by the Negative Air Pressure (Vacuum) Test Prior to Backfill (Metric)
Effective Date
01-Oct-2005

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ASTM C1244M-05 - Standard Test Method for Concrete Sewer Manholes by the Negative Air Pressure (Vacuum) Test Prior to Backfill (Metric)
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn. Contact ASTM
International (www.astm.org) for the latest information.
Designation: C 1244M – 05
METRIC
Standard Test Method for
Concrete Sewer Manholes by the Negative Air Pressure
1
(Vacuum) Test Prior to Backfill [Metric]
This standard is issued under the fixed designation C1244M; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber 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 Times for Various Manhole Diameters in
1. Scope
Seconds
1.1 This test method covers procedures for testing precast
Diameter, mm
concretemanholesectionswhenusingthevacuumtestmethod
Depth, m
750 825 900 1050 1200 1350 1500 1650 1800
to demonstrate the integrity of the installed materials and the
Time, in seconds
construction procedures. This test method is used for testing
concretemanholesectionsutilizingmortar,mastic,orgasketed <1.2 6 7 7 9 10 12 13 15 16
1.8 9 10 11 13 15 18 20 22 25
joints.
2.4 11 12 14 17 20 23 26 29 33
1.2 This test method is intended to be used as a preliminary
3.0 14 15 18 21 25 29 33 36 41
3.7 17 18 21 25 30 35 39 43 49
test to enable the installer to demonstrate the condition of the
4.3 20 21 25 30 35 41 46 51 57
concrete manholes prior to backfill.
4.9 22 24 29 34 40 46 52 58 67
1.3 This standard does not purport to address all of the
5.5 25 27 32 38 45 52 59 65 73
safety problems, if any, associated with its use. It is the 6.1 28 30 35 42 50 53 65 72 81
6.7 31 33 39 46 55 64 72 79 89
responsibility of the user of this standard to establish appro-
7.3 33 36 42 51 59 64 78 87 97
priate safety and health practices and determine the applica-
7.9 36 39 46 55 64 75 85 94 105
8.5 39 42 49 59 69 81 91 101 113
bility of regulatory limitations prior to use.
9.1 42 45 53 63 74 87 98 108 121
1.4 This test method is the companion to inch-pound Test
Method C1244.
C1244 Test Method for Concrete Sewer Manholes by the
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 Negative Air Pressure (Vacuum) Test Prior to Backfill
successfully used in testing manholes.
3. Terminology
NOTE 2—It should be understood that no correlation has been found
between vacuum (air) and hydrostatic tests.
3.1 For definitions of terms relating to manholes, see
Terminology C822.
2. Referenced Documents
2
2.1 ASTM Standards:
4. Summary of Practice
C822 Terminology Relating to Concrete Pipe and Related
4.1 All lift holes and any pipes entering the manhole are to
Products
beplugged.Avacuumwillbedrawnandthevacuumdropover
C924 Practice for Testing Concrete Pipe Sewer Lines by
aspecifiedtimeperiodisusedtodeterminetheacceptabilityof
Low-Pressure Air Test Method
the manhole.
C969 Practice for Infiltration and Exfiltration Acceptance
Testing of Installed Precast Concrete Pipe Sewer Lines
5. Significance and Use
5.1 This is not a routine test. The values recorded are
applicable only to the manhole being tested and at the time of
1
This test method is under the jurisdiction of ASTM Committee C13 on
testing.
ConcretePipeandisthedirectresponsibilityofSubcommitteeC13.06onManholes
and Specials.
6. Preparation of the Manhole
Current edition approved Jan. 1, 2005. Published February 2005. Originally
approved in 1993. Last previous edition approved in 2004 as C 1244M-04.
6.1 All lift holes shall be plugged.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
6.2 All pipes entering the manhole shall be temporarily
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
plugged, taking care to securely brace the pipes and plugs to
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. prevent them from being drawn into the manhole.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn. Contact ASTM
International (www.astm.org) for the latest information.
C 1244M – 05
7. Procedure 7.5 Use or failure of this vacuum test shall not preclude
acceptance by appropriate water infiltration or exfiltration
7.1 The test head shall be placed at the top of the manhole
testing, (see Practice C969), or other means.
in accordance with the manufacturer’s recommendations.
7.2 A vacuum of 33.8 kPa of Hg shall be drawn on the
8. Precision and Bias
manhole, the valve on the vacuum line of the test head closed,
8.1 No justifiable statement can be made either on the
and the vacuum pump shut off.The time shall be measured for
precision or bias of this procedure, since the test result merely
the vacuum to drop to 3
...

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4.1.1 Collection system maintenance requires allocating cleaning resources to the right place prior to system failure (sanitary sewer overflows, mainline blockages, and building backups). Transmissive acoustic inspection provides a tool to assist in allocating cleaning resources by prioritizing pipe segments based on their blockage assessment and thereby facilitating efficient cleaning resource allocation.  
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4.2.3 Due to physics associated with acoustics and trade-offs in equipment design for conducting transmissive acoustic inspection, there are limitations based on the following pipe segment attributes:
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Inspections conducted outside the manufacturer’s recommended ranges for these pipe segment attributes may result in the transmissive acoustic blockage assessment deviating from the performance criteria specified in X1.5...
SCOPE
1.1 This practice covers procedures for assessing the blockage within gravity-fed sewer pipes using transmissive acoustics for the purpose of prioritizing sewer pipe cleaning operations.2 The assessment is based on an acoustic receiver measuring the acoustic plane wave transmitted through the pipe segment under test in order to evaluate the blockage condition of an entire segment and to provide an onsite assessment of the blockage within the pipe segment. (1, 2, 3, 4, 5)3  
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1.5 This standard practice applies to all types of pipe material.  
1.6 The inspection process requires access to sewers and operations along roadways or other locations that are safety hazards. This standard does not describe the hazards likely to be encountered or the safety procedures that must be carried out when operating in these hazardous environments.  
1.7 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.8 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 s...

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SCOPE
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