1、Designation:D313998(Reapproved 2011)Standard Specification forJoints for Plastic Pressure Pipes Using Flexible ElastomericSeals1This standard is issued under the fixed designation D3139;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision
2、,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 covers
3、 the types of joints required forplastic pipe pressure systems with a wall thickness equal to orgreater than that of SDR 64 and intended for use in supply anddistribution lines for water,using flexible elastomeric seals.This specification covers the test requirements,test method,and materials.The te
4、st methods described are not intended tobe routine quality control tests,but are to evaluate theperformance characteristics of the joint.1.2 The text of this specification references notes,footnotes,and appendixes which provide explanatory material.Thesenotes and footnotes(excluding those in tables
5、and figures)shallnot be considered as requirements of the specification.1.3 The following safety hazards caveat pertains to the testmethod portion,Section 6,of this specification:This standarddoes not purport to address all of the safety concerns,if any,associated with its use.It is the responsibili
6、ty of the user of thisstandard to establish appropriate safety and health practicesand determine the applicability of regulatory limitations priorto use.2.Referenced Documents2.1 ASTM Standards:2D2837 Test Method for Obtaining Hydrostatic Design Basisfor Thermoplastic Pipe Materials or Pressure Desi
7、gn Basisfor Thermoplastic Pipe ProductsF477 Specification for Elastomeric Seals(Gaskets)for Join-ing Plastic Pipe2.2 AWWA Standard:AWWA C651 Standard for Disinfecting Water Mains32.3 NSF Standard:ANSI/NSF Standard No.61 for Drinking Water SystemComponents-Health Effects43.Terminology3.1 Definitions:
8、3.1.1 This specification covers two types of mechanicaljoints based on effecting water tightness through compressionof an elastomeric seal or ring:3.1.2mechanical jointa joint in which a positive seal isachieved when a gasket is compressed by means of a mechani-cal device.3.1.3 push-on-jointa joint
9、in which a continuous elasto-meric ring gasket is compressed into an annular space formedby the pipe or fitting socket and the spigot end of the pipe,andforms a positive seal after being assembled.Details of the jointdesign and assembly shall be in accordance with the manufac-turers instructions.4.M
10、aterials and Manufacture4.1 The materials used in elastomeric seals shall meet therequirements of Specification F477.4.2 LubricantThe lubricant shall be nontoxic and shallhave no deteriorating effects on the gasket and pipe materials.It shall not impart taste or odor to water in a pipe that has been
11、flushed in accordance with AWWA C651.When used in apotable water system,the lubricant shall meet the requirementsofANSI/NSF Standard No.61.The lubricant container shall belabeled with the manufacturers trademark or the pipe manu-facturers name.5.Performance Requirements5.1 The joint shall be designe
12、d to provide a permanent sealand shall be qualified in accordance with Section 8.5.1.1 All surfaces of the joint upon or against which thegasket may bear shall be free of imperfections that couldadversely affect the performance of the joint.1This specification is under the jurisdiction of ASTM Commi
13、ttee F17 on PlasticPiping Systems and is the direct responsibility of Subcommittee F17.20 on Joining.Current edition approved Feb.1,2011.Published November 2011.Originallyapproved in 1973.Last previous edition approved in 2005 as D3139 98(2005).DOI:10.1520/D3139-98R11.2For referenced ASTM standards,
14、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.3Available from American Water Works Association(AWWA),6666 W.QuincyAve.,Denver,CO 80235,http:/ww
15、w.awwa.org.4Available from NSF International,P.O.Box 130140,789 N.Dixboro Rd.,AnnArbor,MI 48113-0140,http:/www.nsf.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 5.2 Pressure RatingDesigns not meeting the requirementsof 6.2 shall be
16、tested to verify that the hydrostatic design basiscategory for joint assemblies shall not be lower than thehydrostatic design basis category for pipe when tested underthe same procedure.The hydrostatic design basis for this jointdesign shall be established on a representative size at aminimuim test level of 10 points and 2000 h in accordance withTest Method D2837,except that the ends shall be restrained.Test pressure levels for establishing hydrostatic design basisshall be calculated on pipe min