1、Designation: F2807 13 An American National StandardStandard Specification forMultilayer Polyethylene-Polyamide (PE-PA) Pipe forPressure Piping Applications1This standard is issued under the fixed designation F2807; 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. Scope1.1 This specification covers requirements and test methodsfor12 in. through 1
3、4 in. multilayer polyethylene-polyamide(PE-PA) pipe, which is a two-layer pipe (PE pipe layer bondedto an inner layer of PA). The multilayer pipe covered by thisspecification is intended for use in piping applications wherethe permeation and chemical resistance of polyamide (PA)compounds may be usef
4、ul to protect the PE pipe layer, such asoil and gas producing applications that convey oil, dry or wetgas, and multiphase fluids.NOTE 1Permeability and chemical resistance depends on the type ofPA used. The PA layer delays but does not prevent liquid hydrocarbonseffects. Therefore, the hydrocarbon c
5、hemical design factor for thismultilayer pipe should be the same as for PE pipe layersee X1.2.1.2 Electrofusion and mechanical joints are typically usedfor this multilayer pipe.1.3 Unless specified otherwise, all the pipe requirements inthis standard are for the multilayer pipe.1.4 The PA layer is n
6、ot taken into consideration for thedesign pressure of multilayer pipe meeting this specification.Design pressure rating is determined from the PE pipe layeralonesee Appendix X1.1.5 UnitsThe values stated in inch-pound units are to beregarded as the standard. The values given in parentheses aremathem
7、atical conversions to SI units that are provided forinformation only and are not considered standard.1.6 The text of this standard references notes and footnoteswhich provide explanatory material. These notes and footnotes(excluding those in figures and tables) shall not be consideredas requirements
8、 of the standard.1.7 The following precautionary caveat pertains only to thetest method portion, Section 6, 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 the userof this standard to establish ap
9、propriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.2. Referenced Documents2.1 ASTM Standards:2D618 Practice for Conditioning Plastics for TestingD1598 Test Method for Time-to-Failure of Plastic PipeUnder Constant Internal PressureD1599 Test M
10、ethod for Resistance to Short-Time HydraulicPressure of Plastic Pipe, Tubing, and FittingsD1600 Terminology forAbbreviated Terms Relating to Plas-ticsD1603 Test Method for Carbon Black Content in OlefinPlasticsD2122 Test Method for Determining Dimensions of Ther-moplastic Pipe and FittingsD2290 Test
11、 Method for Apparent Hoop Tensile Strength ofPlastic or Reinforced Plastic PipeD2837 Test Method for Obtaining Hydrostatic Design Basisfor Thermoplastic Pipe Materials or Pressure Design Basisfor Thermoplastic Pipe ProductsD3350 Specification for Polyethylene Plastics Pipe and Fit-tings MaterialsD42
12、18 Test Method for Determination of Carbon BlackContent in Polyethylene Compounds By the Muffle-Furnace TechniqueD6779 Classification System for and Basis of Specificationfor Polyamide Molding and Extrusion Materials (PA)F412 Terminology Relating to Plastic Piping SystemsF1290 Practice for Electrofu
13、sion Joining Polyolefin Pipe andFittings2.2 Federal Specifications:3Fed. Std. No. 123 Marking for Shipment (Civil Agencies)1This test method is under the jurisdiction of ASTM Committee F17 on PlasticPiping Systems and is the direct responsibility of Subcommittee F17.11 onComposite.Current edition ap
14、proved Nov. 1, 2013. Published December 2013. DOI:10.1520/F2807-13.2For 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 onthe ASTM we
15、bsite.3Available from U.S. Government Printing Office Superintendent of Documents,732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http:/www.access.gpo.gov.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States12.3 ISO Standards
16、:4ISO 1167 Thermoplastics pipes for the conveyance offluidsResistance to internal pressureISO 3126 Plastic piping systemsPlastic pipingcomponentsMeasurement and determination of dimen-sionsISO 6259 Thermoplastics pipesDetermination of tensilepropertiesISO 8510-2 AdhesivesPeel test for a flexible-to-
17、rigidspecimen assembly180 peel2.4 Plastic Pipe Institute:5PPI TR-3 Policies and Procedures for Developing Hydro-static Design Basis (HDB), Pressure Design Basis (PDB),Strength Design Basis (SDB), and Minimum RequiredStrength (MRS) Ratings for Thermoplastic Piping Mate-rials or PipePPI TR-4 PPI Listi
18、ng of Hydrostatic Design Basis (HDB),Strength Design Basis (SDB), Pressure Design Basis(PDB) and Minimum Required Strength (MRS) Ratingsfor Thermoplastic Piping Materials or PipePPI TR-9 Recommended Design Factors and Design Coef-ficients for Thermoplastic Pressure PipePPI TR-23 Guidelines for Estab
19、lishing the Pressure Ratingfor Multilayer and Co-extruded Plastic Pipes2.5 Other Documents:SAE J 2260 Nonmetallic Fuel System Tubing with One orMore Layers6EN 14125 Thermoplastic and flexible metal pipework forunderground installation at petrol filling stations73. Terminology3.1 Definitions:3.1.1 De
20、finitions are in accordance with Terminology F412,and abbreviations are in accordance with Terminology D1600,unless otherwise specified.3.1.2 multilayer pipe, nplastic pipe comprised of morethan one layer.3.1.3 re-rounding equipment, ntooling used to reform thepipe and permanently reduce ovality to
21、5% or less.3.1.4 rounding equipment, ntooling, devices, clamps, andso forth, used to temporarily hold the pipe round while ajoining procedure (heat fusion, electrofusion, or mechanical) isperformed.4. Compound Requirements4.1 PE Compound RequirementsThe PE compound usedto make the PE pipe layer shal
22、l be virgin compound and shallhave a Plastics Pipe Institute (PPI) hydrostatic design basis(HDB) rating in accordance with PPI TR-3 using Test MethodD2837. The PE compound used for the PE pipe layer shall havea pipe material designation code of PE 4710 in accordance withPPI TR-3 Section F.7 and shal
23、l be listed in PPI TR-4, and shallmeet Specification D3350 requirements, with a minimum cellclass of 444474C.4.1.1 Additive ClassesPE compounds shall be Code C asdefined in Specification D3350. Code C compound shallcontain 2.0 to 3.0 percent carbon black as measured by TestMethod D1603 or D4218. The
24、 pipe manufacturer shall mea-sure carbon black content of the compound once per week.4.1.2 Chemical ResistanceTesting shall be conducted per6.10 on specimens of PE compound from compression moldedplaques or from a ring specimen prepared from pipe.NOTE 2This test is only an indication of what may hap
25、pen as a resultof short-term exposure to these chemicals. Contact the manufacturer forspecific chemical resistance information for this product.4.1.3 Elevated TemperatureThe PE 4710 compound shallhave an HDB at 140F (60C) of at least 1000 psi listed in PPITR-4.4.2 PA Compound RequirementsThe PA comp
26、ound shallbe a non-reinforced PA with the three-digit cell class (group,class, grade) in accordance with Classification D6779 perTable 1.4.2.1 Chemical ResistanceBased on the intended applica-tion and the corresponding need for chemical resistance, themultilayer pipe manufacturer shall provide chemi
27、cal resistanceproperties for the type of PA compound used in the PA layer ofthis multilayer pipe.4.2.2 ColorThe PA layer shall have a different color fromthe black PE pipe layer so that it can be easily recognized, suchas the APWA color coding system of yellow for gas and oillines.4.3 Rework Compoun
28、dTo prevent possible contaminationbetween PE and PA, rework (regrind) shall not be used for thepolyethylene and polyamide layers.4.4 DocumentationA documentation system to allow fortraceability of compounds used in the manufacture of themultilayer pipe product meeting the requirements of thisspecifi
29、cation shall exist and be supplied to the purchaser, ifrequested.5. Multilayer Pipe Requirements5.1 GeneralMultilayer pipe shall be supplied in eithercoils or straight lengths. Pipe that will be supplied in coils shallmeet the minimum test values required by this standard afterbeing bent to minimum
30、radius used for coiling and thenuncoiled or straightened prior to testing.5.1.1 The multilayer pipe shall meet all the performancerequirements of this standard. There shall be no delaminationof the bonded PA layer during coiling, shipping, handling oroperation of the multilayer pipe.4Available from
31、International Organization for Standardization (ISO), 1, ch. dela Voie-Creuse, CP 56, CH-1211 Geneva 20, Switzerland, http:/www.iso.org.5Available from Plastics Pipe Institute (PPI), 105 Decker Court, Suite 825,Irving, TX 75062, http:/www.plasticpipe.org.6Available from National Fire Protection Asso
32、ciation (NFPA), 1 BatterymarchPark, Quincy, MA 02169-7471, http:/www.nfpa.org.7Available from European Committee for Standardization (CEN), AvenueMarnix 17, B-1000, Brussels, Belgium, http:/www.cen.eu.TABLE 1 Polyamide Type and Cell ClassPolyamide (PA) Type PA Cell ClassPA 6 214PA 11 322PA 12 423F28
33、07 1325.2 WorkmanshipThe multilayer pipe shall be homoge-neous throughout each layer. The multilayer pipe shall be freeof visible cracks, holes, foreign inclusion, blisters, and dents,or other injurious defects. Each respective layer of the multi-layer pipe shall be as uniform as commercially practi
34、cable incolor, opacity, density, and other physical properties.5.3 Multilayer Pipe Dimensions and Tolerances:5.3.1 PE Pipe Layer DimensionsThe PE dimensions shallbe specified by wall thickness and outside diameter.5.3.1.1 DiametersThe average outside diameter of thepolyethylene pipe layer shall meet
35、 the requirements given inTable 2 when measured in accordance with 6.5.1.1.5.3.1.2 Toe-InWhen measured in accordance with 6.5.1.1,or in accordance with the manufacturers procedures formultilayer pipe dimensions, the outside diameter at the cut endof the multilayer pipe shall not be more than 1.5 % s
36、maller thanthe undistorted outside diameter. Measurement of the undis-torted outside diameter shall be made no closer than 1.5 pipediameters or 11.8 in. (300 mm), whichever distance is less,from the cut end of the multilayer pipe. The undistorted outsidediameter of the PE pipe layer shall meet the r
37、equirements ofTable 2.5.3.1.3 Wall ThicknessThe wall thickness of the PE pipelayer shall be as specified in Table 3 when measured inaccordance with 6.5.1.2.5.3.2 PA Layer Wall thicknessThe minimum wall thick-ness of the PA layer shall be 0.039 in (1.0 mm) and themaximum wall thickness shall be 0.047
38、 in (1.2 mm) whenmeasured in accordance with 6.5.1.2.5.3.3 OvalityThe ovality (cross section) of 3 in. IPS (88.9mm) and smaller multilayer pipe shall not exceed 5 % whendetermined in accordance with 6.5.2. Measurements of coiledmultilayer pipe shall be made on a sample cut from the coil,and in case
39、of disagreement, conditioned per 6.3.NOTE 3Other factors, that is, installation compaction, static soilloading, and dynamic vehicular loads may increase the ovality; therefore,5 % was chosen as the limit for the amount contributed by manufacturing,packing, in-plant storage, and shipping. Before or d
40、uring installation,coiled multilayer pipe larger than 3 in. IPS (89 mm) should be processedby the installer through re-rounding equipment that corrects ovality to 5%or less.NOTE 4Ovality is a packaging condition that occurs when roundablepipe is wound into a coilthe pipe flattens out as it is coiled
41、. Ovality iscorrected when joining equipment is applied to roundable pipe, or by fieldprocessing roundable pipe through re-rounding and straightening equip-ment during installation.5.3.3.1 LengthThe multilayer pipe shall be supplied instraight lengths or coils as agreed upon between the manufac-ture
42、r and the purchaser. The length shall not be less than theminimum length agreed upon when corrected to 73F (23C).5.4 Sustained PressureTo assure slow crack growth resis-tance of the multilayer pipe construction, the multilayer pipeshall not fail as defined in Test Method D1598, when tested inaccorda
43、nce with 6.6.5.5 Minimum Hydrostatic Burst Pressure:5.5.1 Multilayer pipe shall have a minimum burst stress of3200 psi (22.1 MPa) when tested in accordance with 6.7 usingthe wall thickness for the multilayer pipe.5.5.2 For multilayer pipe sizes above 4-in. nominaldiameter, the apparent ring tensile
44、strength test per 5.6 is anacceptable alternative.5.6 Apparent Tensile Stress at YieldMultilayer pipe shallhave a minimum apparent tensile stress at yield of 3200 psi(22.1 MPa) when tested in accordance with 6.8 using the wallthickness for the multilayer pipe.5.7 Adhesion (Bonding) of PE and PA Laye
45、rs:5.7.1 The PA layer shall be bonded to the PE pipe layereither with a bonding layer or by chemical means so that thepeel force adhesion requirement of 5.7.2 is met. Layers shallnot delaminate upon rapid decompression from the designpressure to atmospheric pressure at the design temperature inthe o
46、perating environment.5.7.2 When manufactured, the peel force adhesion for thePE pipe layer bonded to the PA layer shall be greater than 28.5lbs/in (50 N/cm), when tested in accordance with test methodISO 8510-2. At no point after installation shall the peel forceadhesion between the PE pipe layer an
47、d PA layer be less than20 lbs/in (35 N/cm).5.8 Permeability and CompatibilityThis is a multilayerpipe requirement, and the testing shall be conducted on themultilayer pipe. The multilayer pipe shall meet the require-ments of 5.8.1 and 5.8.2 after conditioning as per 6.9.2.5.8.1 PermeabilityThe pipe
48、shall have a maximum per-meation rate of 0.013 oz/ft2/day (4 g/m2/day), when measuredin accordance with 6.9.1.TABLE 2 Average Outside Diameters and Tolerances for Polyethylene Pipe Layer, in. (mm)NominalPipe Size(NPS)AverageOutsideDiameterToleranceMaximumOut-of-RoundnessSDR 32.5MaximumOut-of-Roundne
49、ssSDR 26MaximumOut-of-RoundnessSDR 21MaximumOut-of-RoundnessSDR 17, 13.5and 1112 0.840 (21.3) 0.004 (0.102) . . 0.03 (0.76) 0.016 (0.40)34 1.050 (26.7) 0.004 (0.102) . . 0.03 (0.76) 0.020 (0.50)1 1.315 (33.4) 0.005 (0.127) . . 0.03 (0.76) 0.020 (0.50)114 1.660 (42.1) 0.005 (0.127) . . 0.03 (0.76) 0.024 (0.6)2 2.375 (60.3) 0.006 (0.152) . . 0.06 (1.52) 0.024 (0.6)3 3.500 (88.9) 0.008 (0.203) . . 0.06 (1.52) 0.030 (0.76)4 4.500 (114.3) 0.009 (0.229) . . 0.1 (2.5) 0.030 (0.76)6 6.625 (168.3) 0.011 (0.279) 0.12 (3) 0.11
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