1、Designation:D321207(Reapproved 2013)Standard 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 oforiginal adoption or,in the case of r
2、evision,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 U.S.Department of Defense.1.Scope1.1 This specification
3、 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 acceptable materials.Thetest methods desc
4、ribed 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 footnotes(excluding those in tables and figures)sha
5、llnot 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,associated with its use.It is the responsibility of
6、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-moplastic Pipe and FittingsF477 Specification for Elasto
7、meric Seals(Gaskets)for Join-ing Plastic PipeF913 Specification for Thermoplastic Elastomeric Seals(Gaskets)for Joining Plastic Pipe3.Types3.1This specification covers two types of joints based oneffecting watertightness through compression of an elastomericseal or ring:3.1.1 Push-on JointA joint in
8、 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.Materials4.1Material used for elastomeric seal in push-on jointsshall meet the req
9、uirements 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 Requirements5.1 Joints shall not leak when subjected to the int
10、ernal andexternal hydrostatic tests of Section 7 for a period of 10 min.5.2All surfaces of the joint upon or against which thegasket bears shall be smooth and free of cracks,fractures,orimperfections.5.3 DrawingsThe manufacturer shall furnish drawings ofthe joint and gasket if requested by the purch
11、aser.5.4 The gasket shall be the sole element depended upon tomake the joint flexible and watertight.The gasket shall be acontinuous elastomeric ring.5.5In mechanical joints,the pipe spigot shall have a wallthickness sufficient to withstand,without deformation orcollapse,the compressive force exerte
12、d 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 must be provided.5.7 The joint components shall be of such design that th
13、eywill 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 edition approved Feb.1,2013.Published February 2013.Originallyapproved i
14、n 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 of ASTMStandards volume information,refer to the standards Document Summary page ont
15、he ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 gasket when joined without cracking or fracturing when testedin accordance with the requirements of the pipe manufacturer.6.Dimensions and Tolerances6.1Dimensions of the join
16、t 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-tory joint assembly.The method for measuring these dimen-sions shall be in accordance with Test Method D2122.6.2Gasket 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 compre
