1、Designation: F 1365 91 (Reapproved 2009)An American National StandardStandard Test Method forWater Infiltration Resistance of Plastic UndergroundConduit Joints Which Use Flexible Elastomeric Seals1This standard is issued under the fixed designation F 1365; the number immediately following the design
2、ation indicates the year oforiginal adoption or, in the case 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 test method covers the dete
3、rmination of the waterinfiltration resistance of gasketed plastic underground conduitjoints using a pressurized water bladder apparatus.1.2 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 f
4、or information onlyand are not considered standard.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 determine the applica-bility of
5、regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D 618 Practice for Conditioning Plastics for TestingD 2122 Test Method for Determining Dimensions of Ther-moplastic Pipe and FittingsF 512 Specification for Smooth-Wall Poly(Vinyl Chloride)(PVC) Conduit and Fittings for U
6、nderground Installation2.2 Underwriters Laboratories (UL) Standard:UL 651 Schedule 40 and 80 Rigid PVC Conduit32.3 National Electrical Manufacturers Association (NEMA)Standards:TC-2 Electrical Plastic Tubing (EPT) and Conduit (EPC-40and EPC-80)4TC-6 PVC and ABS Plastic Utilities Duct for Underground
7、Installation4TC-8 Extra-Strength PVC Plastic Utilities Duct for Under-ground Installation43. Significance and Use3.1 Underground electrical and communication conduitshould be impervious to groundwater in order to preventdamage to conductors and utility vaults. The bladder testdescribed in this test
8、method may be used to qualify potentialgasketed conduit systems by indicating whether the jointsystem will prevent water infiltration.3.2 This test method can be used to qualify joints for plasticunderground conduits using flexible elastomeric seals. How-ever, it should not be assumed that a joint s
9、ystem that passesthis test method will be able to seal under cases of misinstal-lation or abuse, or both.3.3 This test method covers all of the following gasketedconduit types: encased burial (EB) excluding EB20, directburial (DB), telecommunications, cable television, and Sched-ule 40 conduit and S
10、chedule 80 conduit. Trade sizes coveredare 2-in. nominal size and larger. (See UL 651; NEMA TC-2,TC-6, and TC 8; and Specification F 512.)3.4 This test method also covers fittings that are intended foruse with the conduit types described in 3.3 and which useflexible elastomeric seals.4. Apparatus4.1
11、 GeneralOne type of bladder joint tester is shown inFig. 1.4.2 Bladder:4.2.1 The bladder shall be similar to that shown in Fig. 1.The bladder shall be comprised of a reinforced elastomerictube that is capable of providing a watertight capsule aroundthe subject joint specimen.4.2.2 The bladder shall
12、be able to safely contain an internalwater pressure of at least 11.0 psi (75 kPa).4.2.3 The bladder shall have plumbing connections thatallow the bladder to be pressurized with water and that allowtrapped air to be bled out of the bladder.4.2.4 The bladder shall have a pressure gage that indicatespr
13、essure in the bladder. This gage shall be capable of measur-ing 11 psi (75 kPa) (gage) with an accuracy of 60.5 psi (63.5kPa) (gage).1This test method is under the jurisdiction of ASTM Committee F17 on PlasticPiping Systems and is the direct responsibility of Subcommittee F17.40 on TestMethods.Curre
14、nt edition approved Aug. 1, 2009. Published September 2009. Originallyapproved in 1991. Last previous edition approved in 2005 as F1365 91(2005)2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards v
15、olume information, refer to the standards Document Summary page onthe ASTM website.3Available from Underwriters Laboratories (UL), 333 Pfingsten Rd., North-brook, IL 60062-2096, http:/.4Available from National Electrical Manufacturers Association (NEMA), 1300N. 17th St., Suite 1752, Rosslyn, VA 2220
16、9, http:/www.nema.org.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.4.3 Support Fixture:4.3.1 The support fixture shall constrain movement of thetest specimen and bladder during testing.4.3.2 The support fixture shall be capable of
17、 axially deflect-ing the joint specimen about the joint to the maximumdeflection angle recommended by the joint manufacturer.NOTE 1Axial deflection of a gasketed pipe joint will also inducediametric deformation of the bell and spigot if the angle of axial deflectionis large enough. This can be benef
18、icial when evaluating the sealing abilityof a gasketed pipe joint.5. Test Specimens5.1 The gasketed joint specimen shall be comprised of agasketed bell and a spigot with a chamfer on the outsidediameter edge. Both the bell and spigot shall be of sufficientlength to extend out beyond the bladder enou
19、gh to provide ameans by which to attach the specimen/bladder assembly to thesupport fixture.5.2 Bell specifications and spigot chamfer specificationsshall be determined by the manufacturer, but the specimensshall be representative of normal and customary production bythe manufacturer. (See Method D
20、2122.)5.3 Three specimens shall be tested for each size of gas-keted conduit.6. Conditioning6.1 Condition specimens for at least2hinairatatemperature of 73.4 6 3.6F (23 6 2C) and conduct the testin a room maintained at the same temperature. (See PracticeD 618.)7. Procedure7.1 Select and condition th
21、ree sets of gasketed bells andspigots of the same nominal size according to Sections 5 and 6of this test method.7.2 Mark the specimens with consecutive numbers, startingwith “1” and ending with “3.”7.3 Select a bell/spigot pair and apply a joint lubricantrecommended by the conduit manufacturer to bo
22、th the bell andspigot according to the lubricant manufacturers directions.7.4 Insert the spigot into the bell until the insertion line onthe spigot is flush with the bell lip.7.5 Slide the bladder over the assembled conduit joint andcenter the bladder over the joint seam. Seal the ends of thebladder
23、 to the spigot and bell.NOTE 2The type of clamps used to seal the bladder to the specimenand the location of the clamps on the specimen may influence the amountof bell and spigot deformation when the joint is deflected axially.7.6 Attach all plumbing in accordance with 4.2.3 and 4.2.4to the bladder
24、assembly.7.7 Attach the bladder/specimen assembly to the test fixturein a horizontal, axially straight position.7.8 Fill the bladder with water and bleed off trapped air. Donot allow the bladder to pressurize past 5 psi (34 kPa) duringthe filling and air bleeding of the bladder.7.9 After all air is
25、bled from the bladder, pressurize thebladder to 11 psi (75 kPa) and allow the bladder pressure tostabilize for 5 min.7.10 After the stabilization period, make the necessaryadjustments to the bladder pressure to return it to 11.0 6 0.5psi (75 6 3.5 kPa).7.11 Check for water leakage inside specimen. L
26、eakage atthis point constitutes failure of the test.7.12 Visually check for leakage of the joint at 5, 10, and15-min intervals. If leakage is detected at any interval, discon-tinue the test. Any leakage constitutes a failure of the test.7.13 If no leakage has occurred to this point, repeat 7.12after
27、 axially misaligning the same joint to the maximumamount allowed by the joint manufacturer.7.14 Any leakage during any part of the test constitutesfailure of the test and the test may be suspended at that point.7.15 Repeat 7.3 through 7.14 for the remaining joints.7.16 If other sizes of conduit are
28、to be tested, repeat 7.1through 7.15.8. Report8.1 Each test of a nominal size of conduit (three specimens)shall generate a test report.8.2 The test report shall include the following:8.2.1 Identification of the bell and spigot specimens used inthe test, including nominal size, type of conduit, mater
29、ial ofmanufacture, type and source of gasket, and the name of thejoint manufacturer.8.2.2 Whether the joint passed or failed the test. If the jointfailed, state at what point in the test failure occurred.8.2.3 Date(s) of testing.8.2.4 Location of testing.8.2.5 Name(s) of personnel conducting test.8.
30、2.6 Comments, if appropriate.FIG. 1 Bladder Test ApparatusF 1365 91 (2009)29. Precision and Bias9.1 No statement is made about either the precision or biasof this test method for determining water infiltration resistancesince the result merely states whether there is conformance tothe criteria for s
31、uccess specified in the procedure.10. Keywords10.1 bladder; gasketed conduit; underground conduit; waterinfiltrationASTM 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 a
32、dvised 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 committee and must be reviewed every five years andif not revised, eith
33、er reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend.
34、 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, 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).F 1365 91 (2009)3
