1、Designation: D3212 07 (Reapproved 2013) An American National StandardStandard Specification forJoints for Drain and Sewer Plastic Pipes Using FlexibleElastomeric Seals1This standard is issued under the fixed designation D3212; the number immediately following the designation indicates the year ofori
2、ginal 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.This standard has been approved for use by agencies of the Department of D
3、efense.1. Scope1.1 This specification covers joints for plastic pipe systemsintended for drain, and gravity sewerage pipe at internal orexternal pressures less than 25-ft head using flexible watertightelastomeric seals. This specification is intended to cover thetest requirements, test methods, and
4、acceptable materials. Thetest methods described for the joints are not intended to beroutine quality control tests but to be reliability or performancerequirements.1.2 The text of this specification references notes, footnotes,and appendixes which provide explanatory material. Thesenotes and footnot
5、es (excluding those in tables and figures) shallnot be considered as requirements of the specification.1.3 The following safety hazards caveat pertains only to thetest method portion, paragraph 7.5, of this specification: Thisstandard does not purport to address all of the safety concerns,if any, as
6、sociated with its use. It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.2. Referenced Documents2.1 ASTM Standards:2D2122 Test Method for Determining Dimensions of Ther-mopl
7、astic Pipe and FittingsF477 Specification for Elastomeric Seals (Gaskets) for Join-ing Plastic PipeF913 Specification for Thermoplastic Elastomeric Seals(Gaskets) for Joining Plastic Pipe3. Types3.1 This specification covers two types of joints based oneffecting watertightness through compression of
8、 an elastomericseal or ring:3.1.1 Push-on JointA joint in which an elastomeric ringgasket is compressed in the annular space between a bell endor socket and a spigot end of pipe.3.1.2 Mechanical JointA joint made using mechanicalmeans or devices to develop a pressure seal.4. Materials4.1 Material us
9、ed for elastomeric seal in push-on jointsshall meet the requirements of either Specification F477 orF913.4.2 Lubricant, if required, shall be suitable for lubricatingthe parts of the joints in the assembly. The lubricant shall haveno deteriorating effects on the gasket and pipe materials.5. General
10、Requirements5.1 Joints shall not leak when subjected to the internal andexternal hydrostatic tests of Section 7 for a period of 10 min.5.2 All surfaces of the joint upon or against which thegasket bears shall be smooth and free of cracks, fractures, orimperfections.5.3 DrawingsThe manufacturer shall
11、 furnish drawingsof the joint and gasket if requested by the purchaser.5.4 The gasket shall be the sole element depended upon tomake the joint flexible and watertight. The gasket shall be acontinuous elastomeric ring.5.5 In mechanical joints, the pipe spigot shall have a wallthickness sufficient to
12、withstand, without deformation orcollapse, the compressive force exerted when the fitting istightened.5.6 Some joint designs provide for the angular deflection ofa pipe joint, without reducing watertightness. Where greaterdeflections are required than permitted by the joint design,suitable fittings
13、must be provided.5.7 The joint components shall be of such design that theywill withstand the forces caused by the compression of the1This specification is under the jurisdiction of ASTM Committee F17 on PlasticPiping Systems and is the direct responsibility of Subcommittee F17.20 on Joining.Current
14、 edition approved Feb. 1, 2013. Published February 2013. Originallyapproved in 1973. Last previous edition approved in 2007 as D3212 07. DOI:10.1520/D3212-07R13.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book o
15、f 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 States1gasket when joined without cracking or fracturing when testedin accordance with the re
16、quirements of the pipe manufacturer.6. Dimensions and Tolerances6.1 Dimensions of the joint components shall be in accor-dance with the manufacturers standard design dimensions andtolerances. Such dimensions shall be gaged at sufficientlyfrequent intervals to assure dimensional control and satisfac-
17、tory joint assembly. The method for measuring these dimen-sions shall be in accordance with Test Method D2122.6.2 Gasket dimensions shall be in accordance with themanufacturers standard design dimensions and tolerances.The gasket shall be of such size and shape as to provide anadequate compressive f
18、orce against the spigot and socket afterassembly, to effect a positive seal under all combinations ofjoint and gasket tolerances, when tested in accordance withSection 7.7. Joint Qualification Requirements7.1 Assemble a piece of pipe into a bell or fitting as shownin Fig. 1. Seal the openings, using
19、 either solvent cement capsas shown, or mechanical sealing devices. The gasket shall belubricated as instructed by the manufacturer. Use water in theabsence of other lubricants.7.2 Perform the pressure and vacuum tests as described in7.5 on two properly joined pipes in straight alignment.7.3 Deflect
20、 the joint to the maximum angular misalignmentspecified by the manufacturer. With the joint deflected, performpressure and vacuum tests described in 7.5.7.4 Using the test fixture shown in Fig. 2, commencemeasuring deflection when the load contacts the top of thepipe. Apply further load until the po
21、int of load application hasmoved downward 5 % of the pipe outside diameter. Hold thisposition and perform the tests described in 7.5.NOTE 1The 5 % deflection criterion, which was arbitrarily selectedfor testing convenience, should not be considered as a limitation withrespect to in-use deflection.7.
22、5 Test Methods:NOTE 2It is acceptable to perform the vacuum and pressure tests inany order. As an option to seat the gasket, or in referee testing if agreedby all parties, the sequence of tests may be pressure, vacuum, pressure foreach condition in 7.2, 7.3, and 7.4.7.5.1 Internal Pressure Test Fill
23、 the assembly withwater. External restraints should be provided in the testequipment to prevent separation of the gasket joint underpressure. Apply a pressure of 74 kPa (10.8 psi) (gage) (25-fthead) for 10 min. Visible leaks in the gasket joint constitute afailure.7.5.2 Vacuum Test Fill the assembly
24、 with air only.Applya vacuum of 74 kPa (22 in. Hg). Close the valve and removethe vacuum line. Allow the assembly to stand for 10 min tocheck for leaks before testing. The internal pressure shall notchange more than 3 kPa (1 in. Hg). Perform the test required,noting the internal pressure after the t
25、est condition is attainedand again 10 min later. The internal pressure shall not changemore than 17 kPa (5 in. Hg) during this second 10-min period.8. Retest and Rejection8.1 If the results of any test(s) do not meet the requirementsof this specification, the test(s) shall be conducted again onlyby
26、agreement between the purchaser and the seller. Under suchagreement, minimum requirements shall not be lowered, nortests omitted, substituted, changed, or modified, nor shallspecification limits be changed. If upon retest, failure occurs,the quantity of product represented by the test(s) does not me
27、etthe requirements of this specification.9. Keywords9.1 compression-type; elastomeric; joints; push-on joints;sealsFIG. 1 Test SpecimenD3212 07 (2013)2ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Use
28、rs 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 committee and must be reviewed every
29、 five years andif not revised, either 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 technic
30、al 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, PO Box C700, West Conshohocken
31、, 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). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).NOTE 1L = actual pipe diameter or 610 mm (24 in.), whichever is greater.FIG. 2 Shear Deflection TestD3212 07 (2013)3
