ASTM F3058-2016 Standard Practice for Preliminary Field Testing of Thermoplastic Pipe Joints for Gravity Flow (Non-Pressure) Sewer Lines《对重力流动 (无压力) 污水管道用热塑性塑料管接头进行初步现场测试的标准实施规程》.pdf

1、Designation: F3058 16Standard Practice forPreliminary Field Testing of Thermoplastic Pipe Joints forGravity Flow (Non-Pressure) Sewer Lines1This standard is issued under the fixed designation F3058; the number immediately following the designation indicates the year oforiginal adoption or, in the ca

2、se of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This practice covers procedures for testing single jointsof thermoplastic pipe for gravity

3、 flow (non-pressure) sewerlines, when using either air or water under low pressure todemonstrate the integrity of the joint. This practice is used fortesting 27-in. (675-mm) and larger inside diameter PVC(Polyvinyl Chloride), HDPE (High Density Polyethylene) andPP (Polypropylene) sewer lines utilizi

4、ng flexible gasketedjoints with elastomeric seals, Specification F477.1.2 This practice is used for assessing the watertight integ-rity of a joint at the time of the test. It is not a pipelineacceptance test as it does not evaluate the integrity of the pipebarrel or any long-term pipeline deformatio

5、n effects frombackfill settlementNOTE 1The user of this practice is advised that methods describedherein is typically used as a preliminary test to enable the installer todemonstrate the integrity of a sewer pipe joint prior to placement of finalbackfill. Such testing after initial backfill can dete

6、ct if a gasket has rolledor dirt was pushed into the joint during the mating of the pipe. Repair ofthese types of installation problems can be done very quickly andeffectively prior to final backfill, but once final backfill is placed, repairsare very difficult and costly.NOTE 2This practice may be

7、used at any time to check the integrityof a joint prior to acceptance testing or to locate a leaking joint when apipeline fails a hydrostatic infiltration/exfiltration test, vacuum test or airpressure test during any time of the installation and acceptance process.NOTE 3The user of this practice is

8、advised that no correlation hasbeen found between air loss and water leakage.1.3 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.4 This

9、 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 determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents

10、2.1 ASTM Standards:2F412 Terminology Relating to Plastic Piping SystemsF477 Specification for Elastomeric Seals (Gaskets) for Join-ing Plastic PipeF2487 Practice for Infiltration and Exfiltration AcceptanceTesting of Installed Corrugated High Density Polyethyl-ene and Polypropylene Pipelines3. Termi

11、nology3.1 DefintionsFor definitions of terms relating to plasticpipe, see Terminology F412.4. Summary of Practice4.1 The joint in the sewer line to be tested is covered on theinside of the pipe by a ring with two end element sealing tubes.Air or water is introduced at low pressure through a connecti

12、onon the ring into the annular space between the ring and joint.The amount of air, or water, loss is used to determine theacceptability of the joint.5. Significance and Use5.1 The values recorded are applicable only to the sewerjoint being tested and at the time of testing.6. Safety Precautions6.1 T

13、he use of compressed air is dangerous.Always observeproper sewer line preparation and procedures.6.2 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 line

14、s for pressurizing the voidvolume created by the joint test apparatus. The pressuresrequired to seal 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 void1This practice is under the ju

15、risdiction of ASTM Committee F17 on PlasticPiping Systems and is the direct responsibility of Subcommittee F17.40 on TestMethods.Current edition approved Feb. 1, 2016. Published March 2016. DOI: 10.1520/F3058162For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Custo

16、mer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1volume shall include a 6-psi (41 kPa)

17、 pressure relief device toreduce hazards and avoid over pressurization.7. Preparation of the Sewer Joint7.1 Check the size of access openings to ensure that the testapparatus will fit in the sewer line.NOTE 4Due to the size of test apparatus and difficulty of accessingpipelines through restricted op

18、enings in manholes and fittings, it isadvisable to test pipe joints as the pipe is being laid and initial backfillplaced. Some types of fittings and joints may not be able to be tested dueto their configuration or geometry. Testing prior to final backfill alsoallows failing joints to be repaired, re

19、placed or reinstalled without costlyexcavation.7.2 Clean the joint and interior joint surfaces to eliminatedebris prior to testing.7.3 Review safety precautions in Section 6.8. Procedure8.1 The following procedures apply to testing with either airor water. Fig. 1 provides an example of a joint isola

20、tionapparatus, where only the area between the two watertightbladders is pressurized.8.1.1 Review proper operation, safety, and maintenanceprocedures as provided by the manufacturer of the joint testapparatus. Insure the apparatus has documentation indicating ithas been properly calibrated.8.1.2 Mov

21、e the joint test apparatus into the sewer line to thejoint to be tested and position it to straddle the joint. Make surethe end element sealing tubes straddle both sides of the jointand the hoses are attached. For the water test, the bleed-offpetcock must be located at top dead center.8.1.3 Inflate

22、end element sealing tubes with air in accor-dance with equipment and manufacturers instructions.NOTE 5An erroneous joint failure may occur if the joint test apparatusdoes not obtain a full and continuous contact to a relatively clean and drypipe surface. Leakage may result around the bladder of the

23、test apparatus.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 0.43 psi (3 kPa)for every foot of depth, in a trench that is not completely dewatered,

24、 thetest pressures must be increased by 0.43 psi (3 kPa) per foot ofgroundwater depth to offset the depth of groundwater over the springlineof the sewer line.8.1.4 An air or water reservoir shall be included in the jointtest system. By maintaining a constant supply of air or water ina reservoir, con

25、tinuous pumping of air or water is not required,and any variances in test equipment and joint space will benegated. The reservoir shall have a minimum volume of 2.5 ft3(0.071 m3).8.2 Joint Air Test:8.2.1 Observe procedures in 8.18.2.2 Pressurize the void volume with air to 3.5 psi (24 kPa)greater th

26、an the pressure exerted by highest groundwater abovethe pipe. Unless the Owner specifies a design groundwaterheight (that is, design project requirement), the groundwaterheight shall be determined by site conditions at the time of thepipe installation. Allow the air pressure and temperature tostabil

27、ize before shutting off the air supply, and start of testtiming.NOTE 7Determination of groundwater height should take into con-sideration the impacts of any well points or other factors which couldresult in varying the groundwater elevations around the pipe at the time oftesting.8.2.3 If pressure ho

28、lds, or drops less than 1 psi (6.9 kPa) in5 s, the joint passes. Practically, the test is a go/no go test.8.2.4 If the joint being tested fails, the pipe and testequipment shall be inspected to insure all the sealing surfaceswere properly cleaned and the test equipment positionedcorrectly. The joint

29、 shall then be retested, or repaired ifnecessary, and retested, in accordance with this practice.8.2.5 After the joint test is completed, exhaust void volume,then exhaust end element tubes prior to removal of apparatus.8.2.6 The outcome of this test does not preclude finalacceptance by appropriate w

30、ater infiltration and exfiltrationtesting (see Practice F2487), or other means.8.3 Joint Water Test:8.3.1 Review procedures in 8.1.8.3.2 Introduce water into void volume until water flowsevenly from open petcock at the top of the joint. Close thepetcock and pressurize with water to 3.5 psi (24 kPa)

31、above thepressure exerted by groundwater above the pipe. Shut off thewater supply.8.3.3 If the pressure holds, or drops less than 1 psi (6.9 kPa)in 5 s, the joint passes. 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, an

32、d retested, in accordance with thispractice.8.3.5 After the joint test is completed, exhaust end elementtubes which will automatically release the water from the voidvolume, prior to removal of apparatus.8.3.6 The outcome of this test does not preclude finalacceptance by appropriate water infiltrati

33、on or exfiltrationtesting (see Practice F2487), or other means.9. Keywords9.1 air test; joint isolator; leakage rate; pressure test; watertestFIG. 1 Joint Isolation ApparatusF3058 162ASTM International takes no position respecting the validity of any patent rights asserted in connection with any ite

34、m 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, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical comm

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36、eeting 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 Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive

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