astm d2239

Designation: D 2239 99 An American National Standard

Standard Specification forPolyethylene (PE) Plastic Pipe (SIDR-PR) Based onControlled Inside Diameter1

This standard is issued under the fixed designation D 2239; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) 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 specification covers polyethylene (PE) pipe made

in standard thermoplastic pipe dimension ratios and pressurerated for water (see appendix). Included are criteria forclassifying PE plastic pipe materials and PE plastic pipe, asystem of nomenclature for PE plastic pipe, and requirementsand test methods for materials, workmanship, dimensions,sustained pressure, burst pressure, and environmental stresscracking. Methods of marking are also given.

1.2 The values stated in SI units are to be regarded as thestandard. The values given in parentheses are for informationonly.

1.3 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 specification.

1.4 The following safety hazards caveat pertains only to thetest methods portion, Section 7, 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 appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.

2. Referenced Documents2.1 ASTM Standards:D 618 Practice for Conditioning Plastics for Testing2D 792 Test Methods for Density and Specific Gravity (Rela-

tive Density) of Plastics by Displacement2D 1238 Test Method for Flow Rates of Thermoplastics by

Extrusion Plastometer2D 1248 Specification for Polyethylene Plastics Molding and

Extrusion Materials2D 1505 Test Method for Density of Plastics by the Density-

Gradient Technique2D 1598 Test Method for Time-to-Failure of Plastic Pipe

Under Constant Internal Pressure3D 1599 Test Method for Short-Time Hydraulic Failure Pres-

sure of Plastic Pipe, Tubing, and Fittings3D 1600 Terminology for Abbreviated Terms Relating to

Plastics2D 1603 Test Method for Carbon Black in Olefin Plastics2D 2122 Test Method for Determining Dimensions of Ther-

moplastic Pipe and Fittings3D 2837 Test Method for Obtaining Hydrostatic Design

Basis for Thermoplastic Pipe Materials3D 3350 Specification for Polyethylene Plastics Pipe and

Fittings Materials4F 412 Terminology Relating to Plastic Piping Systems32.2 NSF Standards:Standard No. 14 for Plastic Piping Components and Related

Materials5Standard No. 61 for Drinking Water Systems

ComponentsHealth Effects5

3. Terminology3.1 DefinitionsDefinitions are in accordance with Termi-

nology F 412, and abbreviations are in accordance with Ter-minology D 1600, unless otherwise specified. The abbreviationfor polyethylene plastic is PE.

3.2 Definitions of Terms Specific to This Standard:3.2.1 hydrostatic design stressthe estimated maximum

tensile stress the material is capable of withstanding continu-ously with a high degree of certainty that failure of the pipewill not occur. This stress is circumferential when internalhydrostatic water pressure is applied.

3.2.2 pressure rating (PR)the estimated maximum waterpressure the pipe is capable of withstanding continuously witha high degree of certainty that failure of the pipe will not occur.

3.2.3 relation between standard dimension ratio, hydro-static design stress, and pressure ratingthe following expres-sion, commonly known as the ISO equation,6 is used in this

1 This specification is under the jurisdiction of ASTM Committee F-17 on PlasticPiping Systems and is the direct responsibility of Subcommittee F17.26 on OlefinBased Pipe.

Current edition approved April 10, 1999. Published July 1999. Originallypublished as D 2239 64. Last previous edition D 2239 96a.

2 Annual Book of ASTM Standards, Vol 08.01.

3 Annual Book of ASTM Standards, Vol 08.04.4 Annual Book of ASTM Standards, Vol 08.02.5 Available from the National Sanitation Foundation, P.O. Box 1468, Ann Arbor,

MI 48106.6 ISO R 1611960, Pipes of Plastics Materials for the Transport of Fluids

(Outside Diameters and Nominal Pressures) Part 1, Metric Series.

1

AMERICAN SOCIETY FOR TESTING AND MATERIALS100 Barr Harbor Dr., West Conshohocken, PA 19428

Reprinted from the Annual Book of ASTM Standards. Copyright ASTM

specification to relate standard dimension ratio, hydrostaticdesign stress, and pressure rating:

2S/P 5 R 1 1 or 2S/P 5 ~Di /t! 1 1 (1)

where:S 5 hydrostatic design stress, MPa (or psi),P 5 pressure rating, MPa (or psi),Di 5 average inside diameter, mm (or in.),t 5 minimum wall thickness, mm (or in.), andR 5 standard thermoplastic pipe dimension ratio (Di/t for

PE pipe), also known as SIDR.3.2.4 standard thermoplastic pipe dimension ratio (SIDR)

the ratio of pipe diameter to wall thickness. For PE pipe it iscalculated by dividing the average inside diameter of the pipein millimetres or in inches by the minimum wall thickness inmillimetres or in inches. If the wall thickness calculated by thisformula is less than 1.52 mm (0.060 in.), it shall be arbitrarilyincreased to 1.52 mm. The SIDR values shall be rounded to thenearest 0.1.

3.2.5 standard thermoplastic pipe materials designationcodethe pipe materials designation code shall consist of theabbreviation PE for the type of plastic, followed by the ASTMgrade in Arabic numerals and the hydrostatic design stress inunits of 100 psi with any decimal figures dropped. Where thehydrostatic design stress code contains less than two figures, acipher shall be used before the number. Thus a completematerial code shall consist of two letters and four figures for PEplastic pipe materials (see Section 5).4. Pipe Classification

4.1 GeneralThis specification covers PE pipe made fromfour PE plastic pipe materials in six standard dimension ratiosand six water pressure ratings.

4.2 Standard Thermoplastic Pipe Dimension Ratios(SIDR)This specification covers PE pipe in six standard

dimension ratios, namely, 5.3, 7, 9, 11.5, 15, and 19. These arereferred to as SIDR 5.3, SIDR 7, SIDR 9, SIDR 11.5, SIDR 15,and SIDR 19, respectively. The pressure rating is uniform forall nominal pipe sizes for a given PE pipe material and SIDR(see Table X1.1, appendix).

5. Materials5.1 GeneralPolyethylene plastics used to make pipe

meeting the requirements of this specification are categorizedby means of two criteria, namely, (1) short-term strength tests,and (2) long-term strength tests.

5.2 Basic MaterialsThis specification covers PE pipemade from four PE plastics as defined in Specification D 1248,in which the requirements are based on short-term tests. Theseare Grade P 14, Grade P 23, Grade P 24, Grade P 33, andGrade P 34. The PE plastics can also be described in accor-dance with the appropriate cell classification as defined inSpecification D 3350. The 80C sustained pressure perfor-mance requirements of 6.9 (pipe test category in Table 1) arenot currently in PE material Specifications D 1248 or D 3350.To identify the correct pipe test category (C1 to C7), the PEmaterial base resin density and melt index must be obtainedfrom the PE material supplier.

NOTE 1Committee F-17 has requested that Committee D-20 add the80C sustained pressure performance requirements to SpecificationsD 1248 and D 3350.

5.3 Hydrostatic DesignStressesThis specification coversPE pipe made from PE plastics as defined by four hydrostaticdesign stresses developed on the basis of long-term tests(Appendix X1).

5.4 CompoundThe PE plastic extrusion compound shallmeet the requirements of either Grade P 14, Class B or C;Grade P 23, Class B or C; Grade P 24, Class B or C; GradeP 33, Class B or C; or Grade P 34, Class B or C material as

TABLE 1 176F (80C) Sustained Pressure Requirements for Water PipeA,B

Pipe Test CategoryCBase Resin Melt Index, D 1238

(g/10 min)Base Resin Density,D D 1505

(g/cm3)Minimum Average Hours to Failure

S 5 725 psi (5 MPa) S 5 580 psi (4 MPa) S 5 435 psi (3 MPa)C1 0.25 0.9350.940 45 100 . . .C7 >0.50 0.9260.940 . . . 80 150

A For inside diameter controlled pipe, calculate internal pressure in accordance with the following formula:

P 52S

Dit 1 1

B For outside diameter controlled pipe, calculate internal pressure in accordance with the following formula:

P 52S

Dot 2 1

where:P 5 pressure, psig (MPa),S 5 hoop stress, psi (MPa),Di 5 average inside diameter, in. (mm),Do 5 average outside diameter, in. (mm), andt 5 minimum wall thickness, in. (mm).

C Supplier to determine pipe test category appropriate for his product.D Pipe categories for water pipe with resin density below 0.926 g/cm3 or above 0.948 g/cm3 will be added to this table when the data are available.

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described in Specification D 1248. The PE plastics can also bedescribed in accordance with the appropriate cell classificationas defined in Specification D 3350.

5.4.1 Class B compounds shall have sufficient UV stabilizerto protect pipe from deleterious effects due to continuousoutdoor exposure during storage and shipping. Pipe producedfrom Class B compounds are not suitable for exposed outdoorapplication. Class B and C compounds shall have sufficientantioxidants to meet the requirements in Specification D 3350.

5.4.2 Class C compounds use carbon black for UV stabili-zation. There is evidence that indicates the type, particle size,and dispersion quality of the carbon black affect the weather-ability of the pipe.

5.4.3 Pipe users should consult with the pipe manufacturerabout the outdoor exposure life of the product under consid-eration.

5.5 Rework MaterialThe manufacturers shall use onlytheir own clean rework pipe material and the pipe producedshall meet all the requirements of this specification.

6. Requirements6.1 WorkmanshipThe pipe shall be homogeneous

throughout and free of visible cracks, holes, foreign inclusions,or other defects. The pipe shall be as uniform as commerciallypracticable in color, opacity, density, and other physical prop-erties.

6.2 Dimensions and Tolerances:6.2.1 Inside DiametersThe inside diameters and toler-

ances shall be as shown in Table 2 when measured inaccordance with Test Method D 2122.

6.2.2 Wall ThicknessesThe wall thicknesses and toler-ances shall be as shown in Table 3 when measured inaccordance with Test Method D 2122.

6.2.3 Wall Thickness RangeThe wall thickness range shallbe within 12 % when measured in accordance with TestMethod D 2122.

6.2.4 Thickness of Outer LayerFor pipe produced bysimultaneous multiple extrusion, that is, pipe containing two or

more concentric layers, the outer layer shall be at least0.50-mm (0.020-in.) thick.

6.3 BondFor pipe produced by simultaneous multipleextrusion, the bond between the layers shall be strong anduniform. It shall not be possible to separate any two layers witha probe or point of a knife blade so that the layers separatecleanly at any point.

6.4 Carbon BlackClass C polyethylene pipe extrusioncompound shall contain at least 2 % carbon black when testedin accordance with 7.4. For pipe produced by simultaneousmultiple extrusion, this requirement shall apply to the outerlayer.

NOTE 2The amount of pigment in Class B polyethylene is notestablished by this specification other than the compound shall meet allother requirements and the tubing shall meet all long- and short-termrequirements of this specification.

6.5 DensityThe polyethylene base resin (uncolored PE) inthe pipe compound shall have a density in the range from 0.910to 0.925 g/cm3 for pipe made from Grade P 14 of SpecificationD 1248, 0.926 to 0.940 g/cm3 for pipe made from Grade P 23and Grade P 24 of Specification D 1248, 0.941 to 0.965 g/cm3for pipe made from Grade P 33 of Specification D 1248, and0.941 to 0.965 g/cm 3 for pipe made from Grade P 34 ofSpecification D 1248 when determined in accordance with 7.5.

6.6 Sustained PressureThe pipe shall not fail, balloon,burst, or weep as defined in Test Method D 1598, at the testpressures given in Table 4 when tested in accordance with 7.7.

6.7 Burst PressureThe minimum burst pressure for PEplastic pipe shall be as given in Table 5, when determined inaccordance with 7.10.

6.8 Environmental Stress Cracking There shall be no lossof pressure in the pipe when tested in accordance with 7.8.

6.9 Elevated Temperature Sustained PressureThe averagefailure time must meet or exceed the specified minimumaverage failure time in Table 1 for both hoop stresses of a givenpipe test category when tested in accordance with 7.9.7. Test Methods

7.1 ConditioningCondition the test specimens at 23 62C (73.4 6 3.6F) prior to test in accordance with ProcedureA of Practice D 618, for those tests where conditioning isrequired.

7.2 Test ConditionsConduct the tests in the standardlaboratory atmosphere of 23 6 2C (73.4 6 3.6F), unlessotherwise specified in the test methods or in this specification.

7.3 SamplingThe selection of the sample or samples ofpipe shall be as agreed upon by the purchaser and the seller. Incase of no prior agreement, any sample selected by the testinglaboratory shall be deemed adequate.

7.3.1 Test SpecimensNot less than 50 % of the test speci-mens required for any pressure test shall have at least a part ofthe marking in their central sections. The central section is thatportion of pipe which is at least one pipe diameter away froman end closure.

7.4 Carbon BlackFor all pipe manufactured with Class Cextrusion compound, or the outer layer of pipe produced bysimultaneous multiple extrusion, determine in duplicate thecarbon black content in accordance with Test Method D 1603.

7.5 DensityDetermine the density of the pipe compound

TABLE 2 Inside Diameters and Tolerances for SIDR-PR PEPlastic Pipe, in.

Nominal PipeSize

Average InsideDiameter Tolerances

12 0.622 +0.0100.010

34 0.824 +0.0100.015

1 1.049 +0.0100.020

114 1.380 +0.0100.020

112 1.610 +0.0150.020

2 2.067 +0.0150.020

212 2.469 +0.0150.025

3 3.068 +0.0150.030

4 4.026 +0.0150.035

6 6.065 +0.0200.035

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in accordance with Test Method D 1505, or Test MethodsD 792, using three specimens.

7.6 Base Density:7.6.1 Class C CompoundsDetermine the percentage of

carbon black by weight in accordance with 7.4. Calculate thedensity of the PE base resin (uncolored PE) in the pipecompound as follows:

DR 5 D P 2 0.0044 C (2)

where:DR 5 density of resin, g/cm3,DP 5 density of pipe compound, g/cm 3, andC 5 percentage by weight of carbon black.

7.6.2 Class B CompoundThe methods for determiningpercent pigment in Class B compounds and their effect ondensity varies with the type pigment. Consult with pipecompound manufacturer for procedure to determine basedensity for specific compounds.

7.7 Sustained Pressure TestSelect the test specimens atrandom. Test individually with water at two controlled tem-peratures under the pressures given in Table 4, twelve speci-mens of pipe, each specimen at least ten times the nominaldiameter in length, but not less than 250 mm (10 in.) or morethan 1000 mm (3 ft) between end closures and containing thepermanent marking on the pipe. Test six specimens at eachtemperature. Maintain the specimens at the pressures indicated

TABLE 3 Wall Thicknesses and Tolerances for SIDR-PR PE Plastic Pipe, in.

NominalPipeSize

Wall ThicknessA

SIDR 19 SIDR 15 SIDR 11.5B SIDR 9 SIDR 7 SIDR 5.3Minimum Tolerance Minimum Tolerance Minimum Tolerance Minimum Tolerance Minimum Tolerance Minimum Tolerance

12 0.060 +0.020 0.060 +0.020 0.060 +0.020 0.069 +0.020 0.089 +0.020 0.117 +0.02034 0.060 +0.020 0.060 +0.020 0.072 +0.020 0.092 +0.020 0.118 +0.020 0.155 +0.0201 0.060 +0.020 0.070 +0.020 0.091 +0.020 0.117 +0.020 0.150 +0.020 0.198 +0.024114 0.073 +0.020 0.092 +0.020 0.120 +0.020 0.153 +0.020 0.197 +0.024 0.260 +0.031112 0.085 +0.020 0.107 +0.020 0.140 +0.020 0.179 +0.020 0.230 +0.028 0.304 +0.0362 0.109 +0.020 0.138 +0.020 0.180 +0.022 0.230 +0.028 0.295 +0.035 0.390 +0.047212 0.130 +0.020 0.165 +0.020 0.215 +0.025 ...B ... ... ... ... ...3 0.161 +0.020 0.205 +0.020 0.267 +0.032 ... ... ... ... ... ...4 0.212 +0.025 0.268 +0.032 0.350 +0.042 ... ... ... ... ... ...6 0.319 +0.038 0.404 +0.048 0.527 +0.063 ... ... ... ... ... ...

...

A The minimum is the lowest wall thickness of the pipe at any cross section. The maximum permitted wall thickness, at any cross section, is the minimum wall thicknessplus the stated tolerance. All tolerances are on the plus side of the minimum requirement.

B The 212to 6-in. pipe with a pressure rating of 0.70 MPa (100 psi) is not included.

TABLE 4 Sustained Pressure Test Conditions for Water forSIDR-PR PE Plastic Pipe

SIDR

PE2306PE2406PE3306PE3406

PE2305 PE1404 PE3408

MPa psi MPa psi MPa psi MPa psiTest Pressures at 38C (100F)A

5.3 2.48 360 1.86 270 1.24 180 2.90 4207 1.86 270 1.45 210 0.93 135 2.28 3309 1.48 215 1.17 170 0.76 110 1.83 26511.5 1.17 170 0.93 135 . . . . . . 1.45 21015 0.93 135 . . . . . . . . . . . . 1.14 16519 . . . . . . . . . . . . . . . . . . 0.90 132

Test Pressures at 23C (73F)A5.3 2.86 415 2.28 330 1.83 265 3.51 5087 2.28 330 1.83 265 1.45 210 2.76 4009 1.83 265 1.45 210 1.14 165 2.20 32011.5 1.45 210 1.14 165 . . . . . . 1.76 25615 1.14 165 . . . . . . . . . . . . 1.38 20019 . . . . . . . . . . . . . . . . . . 1.10 160

A The fiber stresses used to derive these test pressures are:

At 38C(100F)

At 23C(73F)

MPa psi MPa psiPE3408 9.10 1320 11.2 1600PE2306, PE2406, PE3306,

PE3406 7.38 1070 9.10 1320PE2305 5.86 850 7.24 1050PE1404 3.93 570 5.65 820

TABLE 5 Burst Pressure Requirements for Water at 23C (73F)for SIDR-PR PE Plastic Pipe

SIDR

Minimum Burst Pressure

PE2306PE2406PE3306PE3406PE3408

PE2305 PE1404

MPa psi MPa psi MPa psi5.3 5.52 800 4.34 630 2.76 4007 4.34 630 3.45 500 2.21 3209 3.45 500 2.76 400 1.72 25011.5 2.76 400 2.21 320 . . . . . .15 2.21 320 . . . . . . . . . . . .19 1.73 252 . . . . . . . . . . . .

A The fiber stresses used to derive these test pressures are:

MPa psiPE2306, PE2406, PE3306, PE3406, PE3408 17.37 2520PE2305 13.79 2000PE1404 8.62 1250

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for the appropriate temperature for a period of 1000 h. Hold thepressure as closely as possible, but within6 70 kPa (610 psi).Condition the specimens for at least 2 h to within 62C of thespecified test temperatures. Maintain the test temperaturewithin 62C of the specified temperature. Test in accordancewith Test Method D 1598, except maintain the pressure at thevalues given in Table 4 for 1000 h. Failure of two of the sixspecimens tested at either temperature constitutes failure in thetest. Failure of one of six specimens tested at either tempera-ture is cause for retest of six additional specimens at thattemperature. Failure of one of six specimens tested at eithertemperature in retest constitutes failure in the test. Failure ofthe pipe shall be as defined in Test Method D 1598, namely:

7.7.1 FailureAny continuous loss of pressure resultingfrom the transmission of the test liquid through the body of thespecimen under test.

7.7.2 BallooningAny abnormal localized expansion of apipe specimen while under internal hydraulic pressure.

7.7.3 BurstingFailure by a break in the pipe with imme-diate loss of test liquid and continued loss at essentially nopressure.

7.7.4 Seepage or WeepingFailure that occurs throughessentially microscopic breaks in the pipe wall, frequently onlyat or near the test pressure.

NOTE 3At lower pressures, the pipe may carry liquids withoutevidence of loss of liquids.

7.8 Environmental Stress Cracking Test Use six randomlyselected 250-mm (10-in.) long specimens containing the per-manent marking for this test. Connect one end of eachspecimen to a 400-psi pressure gage and the other end to an airor nitrogen supply through a suitable valve. Subject thespecimens to the pressures listed in Table 4 for 23C, close thevalve, and disconnect in such a manner that the pressure isretained in the specimen. Apply enough pressure in excess ofthe listed value to compensate for the pressure lost duringdisconnection of the pressure source. Test the assembly forleaks by immersion in water. Eliminate leaks or substitutenonleaking specimens for those that leak. Take care to dry thetest specimen completely after immersion. Apply a coating ofIgepal CO-6307 to the pipe surface with a brush. Take care tokeep the wetting agent at least 12 mm (12 in.) away from theclamps used on each end of the pipe. Use fresh reagent for eachtest and take care to store the reagent in closed containersbecause it is hygroscopic. Keep the coated pipe assembly atroom temperature for 3 h and then examine. There shall be noloss of pressure in at least four of the six specimens. Discardspecimens that leak at a connection and retest. Loss of pressurecaused by expansion of the pipe shall not be cause forrejection.

7.9 Elevated Temperature TestDetermine pipe test cat-egory in Table 1 for a given piping material. Base resin melt

index is determined in accordance with Test Method D 1238and base resin density is determined in accordance with TestMethod D 1505. Prepare at least three test specimens as in 7.7.Test at 176F (80C) and the hoop stress (S) specified in Table1 for the given pipe category in accordance with Test MethodD 1598. Use water as the internal test medium. Two of threespecimens must meet or exceed the specified minimum averagefailure time.

7.10 Burst PressureThe test equipment, procedures andfailure definitions shall be as specified in Test Method D 1599.In addition, the failure must be ductile.

8. Retest and Rejection8.1 If the results of any test(s) do not meet the requirements

of this specification, the test(s) shall be conducted again onlyby agreement between the purchaser and the seller. Under suchagreement, minimum requirements shall not be lowered,changed, or modified, nor shall specification limits be changed.If upon retest, failure occurs, the quantity of product repre-sented by the test(s) does not meet the requirements of thisspecification.

9. Marking9.1 Marking on the pipe shall include the following, spaced

at intervals of not more than 1.5 m (5 ft):9.1.1 Nominal pipe size (for example, 2 in.).9.1.2 Type of plastic pipe material in accordance with the

designation code given in 3.2.5 (for example, PE2305).9.1.3 Standard thermoplastic pipe dimension ratio in accor-

dance with the designation code given in 5.2 (for example,SIDR9), or the pressure rating in pounds per square inch forwater at 23C (73.4F) shown as the number followed by psi(for example, 100 psi), except that when intended for pressureapplication the pressure rating shall be shown (for example,100 psi). When the indicated pressure rating is lower than thatcalculated in accordance with 3.2.5 (see Appendix X1), theSIDR shall also be included in the marking code.

9.1.4 This designation, D 2239, with which the pipe com-plies.

9.1.5 Manufacturers name (or trademark) and code (Note1).

9.1.6 Pipe intended for the transport of potable water shallalso include the seal or mark of the laboratory making theevaluation for this purpose, spaced at intervals specified by thelaboratory.

NOTE 4Manufacturers using the seal or mark of a laboratory mustobtain prior authorization from the laboratory concerned.

9.1.7 Pipe test category in accordance with Table 1.

10. Quality Assurance10.1 When the product is marked with this designation,

D 2239, the manufacturer affirms that the product was manu-factured, inspected, sampled, and tested in accordance with thisspecification and has been found to meet the requirements ofthis specification.

7 This method is based on the use of Igepal CO-630, a trademark for anonylphenoxy poly(ethyleneoxy)ethanol, which may be obtained from GAF Corp.,Dyestuff and Chemical Div., 140 W. 51st St., New York, NY 10020.

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SUPPLEMENTARY REQUIREMENTS

This requirement applies whenever a Regulatory Authority or user calls for product to be used toconvey or to be in contact with potable water.

S1. Potable Water RequirementProducts intended forcontact with potable water shall be evaluated, tested, andcertified for conformance with ANSI/NSF Standard No. 61 or

the health effects portion of NSF Standard No. 14 by anacceptable certifying organization when required by the regu-latory authority having jurisdiction.

APPENDIX

(Nonmandatory Information)

X1. SOURCE OF HYDROSTATIC DESIGN STRESSES

X1.1 The hydrostatic design stresses recommended by thePlastics Pipe Institute are used to pressure rate PE plastic pipe.These hydrostatic design stresses are 2.76 MPa (400 psi), 3.45MPa (500 psi), 4.34 MPa (630 psi), and 5.25 MPa (800 psi) forwater at 23C (73F). These hydrostatic design stresses applyonly to the pipe meeting all the requirements of this specifi-cation.

X1.2 Seven PE pipe materials are included, based on therequirements of Specification D 1248 and the PPI-recommended hydrostatic design stresses, as follows:

X1.2.1 Grade P 14 with a hydrostatic design stress of 2.76MPa (400 psi) for water at 23C (73F), designated as PE1404.

X1.2.2 Grade P 23 with a hydrostatic design stress of 3.45MPa (500 psi) for water at 23C (73F), designated as PE2305.

X1.2.3 Grade P 23, with a hydrostatic design stress of 4.34MPa (630 psi) for water at 23C (73F), designated as PE2306.




X1.2.7 Grade P 34 with hydrostatic design stress of 5.25MPa (800 psi) for water at 23C (73F), designated PE3408.

X1.3 Information regarding criteria used in developingthese hydrostatic design stresses may be obtained from thePlastics Pipe Institute, a division of The Society of the PlasticsIndustry, 355 Lexington Ave., New York, NY 10017 (NoteX1.1). These hydrostatic design stresses may not be suitablefor materials that show a wide departure from a straight-lineplot of log stress versus log time to failure. All the dataavailable to date on PE pipe materials made in the UnitedStates exhibit a straight-line plot under these plotting condi-tions.

NOTE X1.1Refer also to Test Method D 2837.

X1.4 The pipe is rated for use with water at 23C (73F) atthe maximum internal pressures shown in Table X1.1. Lower

pressure ratings than those calculated in accordance with 3.2.3may be recommended, at the option of the pipe manufacturer,in which case the SIDR shall be included in the marking.Experience of the industry indicates that PE plastic pipemeeting the requirements of this specification gives satisfac-tory service under normal conditions for a long period at thesepressure ratings. The sustained pressure requirements (6.6) arerelated to these ratings through the slopes of the strength-timeplots of these materials in pipe form.

X1.5 The hydrostatic design stresses recommended by thePlastic Pipe Institute are based on tests made on pipe rangingin size from 12to 2 in.

TABLE X1.1 Standard Thermoplastic Pipe DimensionRatios (SIDR) and Water Pressure Ratings (PR) at 23C

(73F) or SIDR-PR PE Plastic Pipe

StandardDimension

Ratio

PE Pipe MaterialsA

PE3408 PE3306PE3406

PE2306PE2406

PE2305 PE1404

Pressure Rating, MPa (psi)5.3 1.73 1.38 1.38 1.10 0.86

(250) (200) (200) (160) (125)7 1.38 1.10 1.10 0.86 0.69

(200) (160) (160) (125) (100)9 1.10 0.86 0.86 0.69 0.55

(160) (125) (125) (100) (80)11.5 0.86 0.69 0.69 0.55 . . .

(125) (100) (100) (80) . . .15 0.69 0.55 0.55 . . . . . .

(100) (80) (80) . . . . . .19 0.55 . . . . . . . . . . . .

(80) . . . . . . . . . . . .Pressure Rating, MPa (psi)

1.73 (250) 5.3 . . . . . . . .1.38 (200) 7 5.3 . . . . .1.10 (160) 9 7 5.3 . .0.86 (125) 11.5 9 7 5.30.69 (100) 15 11.5 9 70.55 (80) 19 15 11.5 9

A See 3.2.5 and 5.4 for code designation.

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The American Society for Testing and Materials takes no position respecting the validity of any patent rights asserted in connectionwith any item mentioned in this standard. Users of this standard are expressly advised that determination of the validity of any suchpatent rights, and the risk of infringement of such rights, are entirely their own responsibility.

This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM Headquarters. Your comments will receive careful consideration at a meeting of the responsibletechnical committee, which you may attend. If you feel that your comments have not received a fair hearing you should make yourviews known to the ASTM Committee on Standards, 100 Barr Harbor Drive, West Conshohocken, PA 19428.

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