1、Designation: C 1103M 03METRICStandard Practice forJoint Acceptance Testing of Installed Precast Concrete PipeSewer Lines Metric1This standard is issued under the fixed designation C 1103M; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revi
2、sion, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This practice covers procedures for testing the joints ofinstalled precast concrete pipe sewer line
3、s, when using eitherair or water under low pressure to demonstrate the integrity ofthe joint and the construction procedures. This practice is usedfor testing 675-mm and larger diameter precast concrete sewerlines utilizing rubber gasket sealed joints.NOTE 1The user of this test method is advised th
4、at methods describedherein may also be used as a preliminary test to enable the manufactureror installer to demonstrate the condition of sewer pipe prior to delivery.1.2 This practice is the metric companion of PracticeC 1103.NOTE 2The owner shall specify the following: who will conduct,observe, and
5、 furnish labor, material, and measuring devices and pay forthe tests; who is responsible for determining local ground conditions; andwhether an air or water test is to be used.NOTE 3The user of this practice is advised that test criteria presentedin this practice are similar to those in general use.
6、 Pipe 600-mm diameterand smaller shall be accepted by infiltration or exfiltration testing utilizingPractice C 969M or by low pressure air testing utilizing Practice C 924M.Pipe greater than 600-mm diameter shall be accepted by infiltration orexfiltration testing utilizing C 969M.NOTE 4The user is a
7、dvised that no correlation has been foundbetween air loss and water leakage.1.3 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determi
8、ne the applica-bility of regulatory limitations prior to use. Specific safetyprecautions are given in Section 6.2. Referenced Documents2.1 ASTM Standards:2C 822 Terminology Relating to Concrete Pipe and RelatedProductsC 924M Practice for Testing Concrete Pipe Sewer Lines byLow-Pressure Air Test Meth
9、od MetricC 969M Practice for Infiltration and Exfiltration AcceptanceTesting of Installed Precast Concrete Pipe Sewer LinesMetric3. Terminology3.1 DefinitionsFor definitions of terms relating to con-crete pipe, see Terminology C 822.4. Summary of Practice4.1 The joint in the sewer line to be tested
10、is covered on theinside of the pipe by a ring with two end element sealing tubes.Air or water, at low pressure, is introduced through a connec-tion on the ring into the annular space between the ring andjoint. The amount of air, or water, loss is used to determine theacceptability of the installed s
11、ewer line.5. Significance and Use5.1 This is not a routine test. The values recorded areapplicable only to the sewer being tested and at the time oftesting.6. Safety Precautions6.1 The use of compressed air is dangerous if a sewer line isnot prepared properly and proper procedures are not followed.6
12、.2 It is imperative that all pressures be relieved completelybefore the test apparatus is loosened for removal.6.3 Pressurizing lines for the two end element sealing tubesshall be separate from the lines for pressurizing the voidvolume created by the joint test apparatus. The pressuresrequired to se
13、al the end element tubes shall be as specified bythe apparatus manufacturer, and are greater than the pressurerequired to test the joint. The line for pressurizing the voidvolume shall include a 42 kPa pressure relief device to reducehazards and avoid overpressurization.1This practice is under the j
14、urisdiction of ASTM Committee C13 on ConcretePipe and is the direct responsibility of Subcommittee C13.09 on Methods of Test.Current edition approved November 1, 2003. Published January 2004. Originallyapproved in 1989. Last previous edition approved in 2002 as C 110302.2For referenced ASTM standard
15、s, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 1
16、9428-2959, United States.7. Preparation of the Sewer Joint7.1 Check the size of access openings to ensure that the testapparatus will fit in the sewer line.7.2 Clean the joint and interior joint surfaces to eliminatedebris prior to wetting and testing.NOTE 5The user of this practice is advised that
17、a wetted interiorsurface is desirable and will produce more consistent results. Air may passthrough the walls of dry pipe. This may be overcome by wetting the pipe.7.3 Review safety precautions in Section 6.8. Procedures8.1 The following procedures apply to testing with either airor water.8.1.1 Dete
18、rmine groundwater conditions surrounding thesewer line to be tested, and select the type of test to beconducted.8.1.2 If the groundwater pressure is equal to or greater thanthe test pressure, and the sewer line or joint is not leaking, thesewer line or joint is acceptable in accordance with Practice
19、C 969M and no additional testing is required. If one or morejoints are leaking, but the total amount of leakage in the sewerline being tested is equal to, or less than, the allowable leakagerate established in accordance with Practice C 969M, the line isacceptable and no additional testing is requir
20、ed providedvisible leaks are repaired. Moisture or beads of water appearingon the surface of the joint will not be considered as visibleleakage.8.1.3 Review proper operation, safety, and maintenanceprocedures as provided by the manufacturer of the joint testapparatus.8.1.4 Move the joint test appara
21、tus into the sewer line to thejoint to be tested and position it over the joint. Make sure theend element sealing tubes straddle both sides of the joint andthe hoses are attached. For the water test, the bleed-off petcockmust be located at top dead center.8.1.5 Inflate end element sealing tubes with
22、 air in accor-dance with equipment and manufacturers instructions.NOTE 6The user of this practice is advised that all test pressures aremeasured as gage pressure, which is defined as any pressure greater thanatmospheric pressure. Since water produces a pressure of 10 kPa for everymetre of depth, tes
23、t pressures must be increased to offset the depth ofgroundwater over the sewer line. If the groundwater level is 0.6 m or moreabove the top of the pipe at the upstream end or if the pressure requiredfor the test is greater than 34 kPa gage, the joint test method shall not beused and the infiltration
24、 test shall be used (see Practice C 969M).NOTE 7An air or water reservoir shall be included in the joint testsystem. By maintaining a constant supply of air or water in a reservoir,continuous pumping of air or water is not required, and any variances intest equipment and joint space will be negated.
25、 The reservoir shall have aminimum volume of 0.07 m3.8.2 Joint Air Test:8.2.1 Review procedures in 8.1.8.2.2 Pressurize the void volume with air to 24 kPa greaterthan the pressure exerted by groundwater above the pipe.Allow the air pressure and temperature to stabilize beforeshutting off the air sup
26、ply and start of test timing.8.2.3 If pressure holds, or drops less than 7 kPa in 5 s, thejoint is acceptable. Practically, the test is a go/no go test.8.2.4 If the joint being tested fails, it shall be retested, orrepaired if necessary, and retested, in accordance with thispractice.8.2.5 After the
27、joint test is completed, exhaust void volume,then exhaust end element tubes prior to removal of apparatus.8.2.6 Use or failure of the joint air test shall not precludeacceptance by appropriate water infiltration and exfiltrationtesting (see Practice C 969M), or other means.8.3 Joint Water Test:8.3.1
28、 Review procedures in 8.1.8.3.2 Introduce water into void volume until water flowsevenly from open petcock. Close the petcock and pressurizewith water to 24 kPa above the pressure exerted by ground-water above the pipe. Shut off the water supply.8.3.3 If the pressure holds, or drops less than 7 kPa
29、in 5 s,the joint is acceptable. Practically, the test is a go/no go test.8.3.4 If the joint being tested fails, it shall be retested, orrepaired if necessary, and retested, in accordance with thispractice.8.3.5 After the joint test is completed, exhaust end elementtubes which will automatically rele
30、ase the water from the voidvolume, prior to removal of apparatus.8.3.6 Use or failure of this joint water test shall not precludeacceptance by appropriate water infiltration or exfiltrationtesting (see Practice C 969M), or other means.9. Precision and Bias9.1 No justifiable statement is presently ca
31、pable of beingmade either on precision or bias of these procedures since thetest results merely state whether there is conformance to thecriteria for success specified. Due to the sealing effects ofgroundwater and internal flow on concrete sewer lines, the testconditions and results are not reproduc
32、ible.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights
33、, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional st
34、andardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Co
35、mmittee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).C1103M032
