1、Designation:F192412Standard Specification forPlastic Mechanical Fittings for Use on Outside DiameterControlled Polyethylene Gas Distribution Pipe and Tubing1This standard is issued under the fixed designation F1924;the number immediately following the designation indicates the year oforiginal adopti
2、on 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.Scope*1.1 This specification describes requirements and test meth-ods for the qualificatio
3、n of plastic bodied mechanical fittingsfor use with outside diameter controlled polyethylene(PE)gasdistribution pipe,nominal 2 pipe size(IPS)and smallercomplying with Specification D2513.In addition,it specifiesgeneral requirements of the material from which these fittingsare made.1.2 The test metho
4、ds described in this specification are notintended to be used as routine quality control tests.1.3 This specification covers the types of mechanical fittingsdescribed in 3.2.1.4 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconver
5、sions to SI units that are provided for information onlyand are not considered standard.1.5 The following safety hazards caveat pertains only to thetest method portion,Section 7,of this specification.Thisstandard does not purport to address all of the safety concerns,if any,associated with its use.I
6、t 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.1.6 The text of this specification references notes andfootnotes,which provide explanatory material.These notes andfootnotes
7、(excluding those in tables and figures)shall not beconsidered as requirements of this specification.2.Referenced Documents2.1 ASTM Standards:2D638 Test Method for Tensile Properties of PlasticsD1598 Test Method for Time-to-Failure of Plastic PipeUnder Constant Internal PressureD1600 Terminology forA
8、bbreviated Terms Relating to Plas-ticsD2513 Specification for Polyethylene(PE)Gas PressurePipe,Tubing,and FittingsD2837 Test Method for Obtaining Hydrostatic Design Basisfor Thermoplastic Pipe Materials or Pressure Design Basisfor Thermoplastic Pipe ProductsF412 Terminology Relating to Plastic Pipin
9、g SystemsF1588 Test Method for Constant Tensile Load Joint Test(CTLJT)F2897 Specification for Tracking and Traceability EncodingSystem of Natural Gas Distribution Components(Pipe,Tubing,Fittings,Valves,and Appurtenances)2.2 ASME Standard:ASME B31.8 Gas Transmission and Distribution PipingSystems32.3
10、 Federal Standard:CFR,Title 49,Part 192 Pipeline Safety Regulations42.4 Plastics Pipe Institute Standard:PPI TR-4 Recommended Hydrostatic Strengths and DesignStresses for Thermoplastic Pipe and Fittings Compounds53.Terminology3.1 DefinitionsDefinitions of terms used in this specifica-tion are in acc
11、ordance with Terminology F412 unless otherwisespecified.Abbreviations are in accordance with TerminologyD1600 unless otherwise specified.3.1.1 The Gas Industry terminology used in this specifica-tion is in accordance with ASME B31.8 or CFR,Title 49,Part192 unless otherwise indicated.3.1.2 The term“p
12、ipe”used herein refers to both“pipe”and“tubing”unless specifically stated otherwise.The term“fitting”refers to a mechanical connecting device as described in 3.1.4and 3.1.6.1This specification is under the jurisdiction of ASTM Committee F17 on PlasticPiping Systems and is the direct responsibility o
13、f Subcommittee F17.60 on Gas.Current edition approved April 1,2012.Published May 2012.Originallyapproved in 1998.Last previous edition approved in 2011 as F192405(2011).DOI:10.1520/F1924-12.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at servicea
14、stm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from American Society of Mechanical Engineers(ASME),ASMEInternational Headquarters,Three Park Ave.,New York,NY 10016-5990,http:/www.asme.org.4Available from Standard
15、ization Documents Order Desk,DODSSP,Bldg.4,SectionD,700RobbinsAve.,Philadelphia,PA19111-5098,http:/dodssp.daps.dla.mil.5Available from Plastics Pipe Institute(PPI),105 Decker Court,Suite 825,Irving,TX 75062,http:/www.plasticpipe.org.*A Summary of Changes section appears at the end of this standardCo
16、pyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.1.3 joint,nthe location at which two pieces of pipe,or apipe and a fitting are connected together,for example,aninstalled coupling has two joints.3.1.4 joint,mechanical,na connection between pipingcomponents employing physical force to develop a seal orproduce alignment.3.1.5 long-term strength(LTS),nthe estimated tensilestress that when applied continuously will cause failure at100 000