1、Designation: D2513 09aAn American National StandardStandard Specification forPolyethylene (PE) as Pressure Pipe, Tubing, and Fittings1This standard is issued under the fixed designation D2513; the number immediately following the designation indicates the year oforiginal adoption or, in the case of
2、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 Defense.1. Scope1.1 This specificat
3、ion covers requirements and test methodsfor material dimensions and tolerances, hydrostatic burststrength, chemical resistance, and rapid crack resistance ofpolyethylene pipe, tubing, and fittings for use in fuel gas mainsand services for direct burial and reliner applications. The pipeand fittings
4、covered by this specification are intended for use inthe distribution of natural gas. Requirements for the qualifyingof polyethylene systems for use with liquefied petroleum gasare also covered.1.1.1 This specification does not cover threaded pipe. De-sign considerations are discussed in Appendix X1
5、. In-plantquality control programs are specified in Annex A1 and AnnexA2.1.2 The text of this specification references notes, footnotes,and appendixes which provide explanatory material. Thesenotes and footnotes (excluding those in tables and figures) shallnot be considered as requirements of the sp
6、ecification.1.3 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 for information onlyand are not considered standard.1.4 The following is an index of the annexes and appendixin this specific
7、ation:Annex SubjectAnnex A1 In-Plant Quality Control for all materials up to 12 in.Annex A2 In-Plant Quality Control for PE materials between 14 and 24 in.Appendixes SubjectAppendix X1 Design Consideration1.5 The following precautionary caveat pertains only to thetest method portion, Section 6, of t
8、his specification. Thisstandard does not purport to address all of the safety concerns,if any, associated 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.
9、Referenced Documents2.1 ASTM Standards:22.1.1 Terminology:D1600 Terminology for Abbreviated Terms Relating toPlasticsF412 Terminology Relating to Plastic Piping Systems2.1.2 Test Methods for:D638 Test Method for Tensile Properties of PlasticsD1238 Test Method for Melt Flow Rates of Thermoplasticsby
10、Extrusion PlastometerD1598 Test Method for Time-to-Failure of Plastic PipeUnder Constant Internal PressureD1599 Test Method for Resistance to Short-Time HydraulicPressure of Plastic Pipe, Tubing, and FittingsD2122 Test Method for Determining Dimensions of Ther-moplastic Pipe and FittingsD2290 Test M
11、ethod for Apparent Hoop Tensile Strength ofPlastic or Reinforced Plastic Pipe by Split Disk MethodD2837 Test Method for Obtaining Hydrostatic Design Basisfor Thermoplastic Pipe Materials or Pressure Design Basisfor Thermoplastic Pipe ProductsF1473 Test Method for Notch Tensile Test to Measure theRes
12、istance to Slow Crack Growth of Polyethylene Pipesand Resins2.1.3 Practices for:D543 Practices for Evaluating the Resistance of Plastics toChemical ReagentsD618 Practice for Conditioning Plastics for TestingD1898 Sampling of PlasticsD2774 Practice for Underground Installation of Thermo-plastic Press
13、ure PipingF2620 Practice for Heat Fusion Joining of PolyethylenePipe and Fittings2.1.4 Specification for:D2683 Specification for Socket-Type Polyethylene Fittingsfor Outside Diameter-Controlled Polyethylene Pipe andTubing1This specification is under the jurisdiction of ASTM Committee F17 on PlasticP
14、iping Systems and is the direct responsibility of Subcommittee F17.60 on Gas.Current edition approved Dec. 1, 2009. Published January 2010. Originallyapproved in 1966. Last previous edition approved in 2009 as D2513 09. DOI:10.1520/D2513-09A.2For referenced ASTM standards, visit the ASTM website, ww
15、w.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.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.D326
16、1 Specification for Butt Heat Fusion Polyethylene(PE) Plastic Fittings for Polyethylene (PE) Plastic Pipe andTubingD3350 Specification for Polyethylene Plastics Pipe andFittings MaterialsF1055 Specification for Electrofusion Type PolyethyleneFittings for Outside Diameter Controlled PolyethylenePipe
17、and TubingF1563 Specification for Tools to Squeeze-off Polyethylene(PE) Gas Pipe or TubingF2138 Specification for Excess FlowValves for Natural GasService2.2 ANSI Standards:B 16.40 Manually Operated Thermoplastic Gas Shutoffsand Valves in Gas Distribution Systems3B 31.8 Gas Transmission and Distribu
18、tion Piping Systems32.3 Federal Specifications:Fed. Std. No. 123 Marking for Shipment (Civil Agencies)4OPS 49 CFR Part 192 Title 49, Code of Federal Regula-tions42.4 Military Standards:MIL-STD-129 Marking for Shipment and Storage4MIL-STD-1235 (ORD) Single- and Multi-Level Continu-ous Sampling Proced
19、ures and Tables for Inspection byAttributes2.5 ISO Standards5:ISO 4437 Buried polyethylene (PE) pipes for the supply ofgaseous fuels-Metric series-SpecificationsISO 9080 Thermoplastics Pipes for the Transport ofFluidsMethods of Extrapolation of Hydrostatic StressRupture Data to Determine Long-Term H
20、ydrostaticStrength of Thermoplastic Pipe MaterialsISO 12162 Thermoplastic Materials for Pipes and Fittingsfor Pressure ApplicationsClassification andDesignationOverall Service (Design) CoefficientISO 13477 Thermoplastics pipes for the conveyance offluids Determination of resistance to rapid crack pr
21、opa-gation (RCP) Small scale steady-state test (S4 test)ISO 13478 Thermoplastics pipe for the conveyance of fluids Determination of resistance to rapid crack propagation(RCP) Full-scale test (FST)2.6 Plastic Pipe Institute6PPI TR-33 Generic Butt Fusion Joining for PolyethyleneGas PipePPI TR-41, Gene
22、ric Saddle Fusion Joining Procedure forPolyethylene Gas Piping6PPI TN-30/2006 Requirements for the Use of ReworkMaterials in Polyethylene Gas Pipe6PPI TR-9 Recommended Design Factors and Design Co-efficients for Thermoplastic Pressure pipe2.7 Other Documents:7National Fire ProtectionAssociation: NFP
23、A 58, Storage andHandling Liquefied Petroleum Gases3. Terminology3.1 DefinitionsDefinitions are in accordance with Termi-nology F412, and abbreviations are in accordance with Termi-nology D1600, unless otherwise specified.3.2 The gas industry terminology used in this specificationis in accordance wi
24、th ANSI B 31.8 or OPS 49 CFR Part 192,unless otherwise indicated.3.3 The term pipe used herein refers to both pipe and tubingunless specifically stated otherwise.3.4 re-rounding equipmentequipment used to reform thepipe and permanently reduce ovality to 5% or less.3.5 rounding equipmentequipment, de
25、vices, clamps, andso forth, used to temporarily hold the pipe round whileout-of-roundness measurements are made, or a joining proce-dure (heat fusion, electrofusion, or mechanical) is performed.3.6 pipe material designated codethe pipe material des-ignation code shall consist of the abbreviation for
26、 the type ofplastic (PE) followed by Arabic numerals which describe theshort term properties in accordance with applicable Specifica-tion D3350, the hydrostatic design stress for water at 73.4F(23C) in units of 100 psi with any decimal figures dropped.Where the hydrostatic design stress code contain
27、s less than twofigures, a zero is used before the number. Thus, a completematerial designation code shall consist of PE and four figuresfor PE materials. For example, PE2708 is a grade PE27polyethylene with an 800psi design stress for water at 73.4F(23C). The hydrostatic design stresses for gas are
28、not used inthis designation code.3.7 dimension ratio (DR)the ratio of pipe diameter to wallthickness. It is calculated by dividing the specified outsidediameter of the pipe, in inches (mm), by the minimum specifiedwall thickness, in inches (mm). The standard dimension ratio(SDR) is a common numberin
29、g system which is derived fromthe ANSI preferred number series R 10.3.8 toe-ina small reduction of the outside diameter at thecut end of a length of thermoplastic pipe.4. Materials4.1 GeneralThe PE used to make pipe and fittings shallbe PE or reworked PE (see 4.2 and 4.4) and shall have aPlastics Pi
30、pe Institute (PPI) long-term hydrostatic design stressand hydrostatic design basis rating.4.2 Rework MaterialClean rework material of the samecommercial designation, generated from the manufacturersown pipe and fitting production shall not be used unless thepipe and fitting produced meet all the req
31、uirements of thisspecification. The use of these rework materials shall begoverned by the requirements of 4.3 and PPI TN-30/2006 Inpipe, rework materials shall be limited to a maximum of 30 %by weight.3Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, N
32、Y 10036, http:/www.ansi.org.4Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http:/www.dodssp.daps.mil.5Available from International Organization for Standardization (ISO), 1, ch. dela Voie-Creuse, Case postale 56, CH-121
33、1, Geneva 20, Switzerland, http:/www.iso.ch.6Available from Plastics Pipe Institute (PPI), 105 Decker Court, Suite 825,Irving, TX 75062, http:/www.plasticpipe.org.7Available from National Fire Protection Association (NFPA), 1 BatterymarchPark, Quincy, MA 02169-7471, http:/www.nfpa.org.D2513 09a2NOTE
34、 1The requirements for rework materials herein are intended toincorporate prudent specifications to ensure that the potential for contami-nation in gas piping products, that meet this specification, is reduced to theextent possible. It is imperative to emphasize that rework materials havenot been id
35、entified as the cause of any field failures. The requirements forrework materials were developed by the consensus of interested partiesincluding product manufacturers, gas utility companies, and regulatoryagencies.4.3 Documentation A documentation system to allow fortraceability of raw materials inc
36、luding percentage and materialclassification (or designation, if applicable) of rework materialsused in the manufacture of the pipe product meeting therequirements of this specification shall exist and be supplied tothe purchaser, if requested.4.4 ClassificationPolyethylene materials suitable for us
37、ein the manufacture of pipe and fittings under this specificationshall be classified in accordance with Specification D3350, andas shown in Table 1. PE 2606 and PE 2708 are medium densityPE (MDPE) materials. PE 3608, PE 3710, PE 4608 and PE4710 are high density PE (HDPE) materials. Example : for apo
38、lyethylene material having an HDB of 1250 psi (8.6 MPa),Cell Class 3, the base resin density must have a cell classifi-cation of 2; the melt index classification must be 3 or 5; and soforth.NOTE 2References and material descriptions for PE2306, PE2406,PE3306, PE3406 and PE3408 have been removed from
39、 D2513. Elimina-tion of these materials does not affect the pipelines that are in service.They can still be used for gas distribution. The main reason for removingthese materials from this standard is to reflect the current state of the artin PE gas distribution piping.4.5 Slow Crack Growth Resistan
40、ceUse Test MethodF1473 on compression molded plaques at a stress of 2.4 MPabased on the unnotched area and a test temperature of 80C.Notch depth shall be in accordance withTable 1 inTest MethodF1473. Materials shall meet the Slow Crack Growth Resistancerequirements in Table 1.4.6 Additive ClassesPol
41、yethylene material compoundsshall meet Specification D3350 code C or E. Code C materialcompounds shall have 2 to 3 percent carbon black. Code Ematerial compounds shall be colored with UV stabilizer.4.7 Thermal StabilityThe PE material shall contain suffi-cient antioxidant so that the minimum inducti
42、on temperatureshall be 428F (220C) when tested in accordance withSpecification D3350. The sample shall be representative of thecross section of the pipe or fittings.4.8 Hydrostatic Design Basis (HDB) SubstantiationTheHDB for PE materials at 73F (23C) shall be substantiated byshowing that the extrapo
43、lation of the stress regression curve islinear to the 438 000-h intercept (long-term hydrostaticstrength at 50 years in accordance with Test Method D2837).This will be done in accordance with Test Method D2837 usingone of the two following procedures:4.8.1 Use the twelve data points from Conditions
44、I and IIobtained in 5.6.1 (Procedure I) of Test Method D2837 alongwith the 438 000-h intercept to solve for the three-coefficientrate process extrapolation equation. Then using this newmodel, calculate the mean estimated failure time for ConditionIII. When the log average time for six specimens test
45、ed atCondition III has reached this time, linear extrapolation of the73F (23C) stress regression curve to 438 000 h is substanti-ated.4.8.2 When 5.6.2 (Procedure II) of Test Method D2837 isused to validate the 73F (23C) HDB, linear extrapolation ofthe stress regression curve to 438 000 h is substant
46、iated whenthe log average failure time of the test specimens at 176F(80C) surpasses 6000 h.NOTE 3The long-term hydrostatic strength at 50 years in accordancewith Test Method D2837 is not to be used for any pressure ratingcalculations. The MAOP is still calculated using the HDB obtained fromTest Meth
47、od D2837 long-term hydrostatic strength at 100 000 h.4.9 Resistance to Rapid Crack Propagation (RCP) forMaterialThe PE material classification (formulation) used inthe manufacture of pipe and fittings under this specificationshall be tested for resistance to failure by RCP in accordancewith the proc
48、edures set forth in ISO 13477 (S4 Test) orISO 13478 (Full Scale Test (FST). The data obtained shall bemade available upon request without limitations on disclosure,and shall not subsequently be subject to disclosure limitationswhen used by others. The values obtained are applicable to allpipes with
49、the wall thickness of the pipe tested and all thinnerwall pipes. In case of conflict, the RCP results of ISO 13478shall apply.NOTE 4While S4 or FST testing of any combination of outsidediameter and SDR is permitted in fulfillment of the requirement for testingPE material resistance to RCP, S4 testing of SDR 9 or SDR 11 PE pipespecimens is currently the most common industry practice.NOTE 5Caution should be exercised in applying the RCP test resultsobtained on one SDR or DR of pipe across a series of pipe SDRs or DRsproduced from t
