ASTM D2513-20

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:D2513 −20 An American National Standard
Standard Specification for
Polyethylene (PE) Gas Pressure Pipe, Tubing, and Fittings
This standard is issued under the fixed designation D2513; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* if any, associated with its use. It is the responsibility of the user
of this standard to establish appropriate safety, health, and
1.1 This specification covers requirements and test methods
environmental practices and determine the applicability of
for material dimensions and tolerances, hydrostatic burst
regulatory limitations prior to use.
strength, chemical resistance, and rapid crack resistance of
1.6 This international standard was developed in accor-
polyethylene pipe, tubing, and fittings for use in fuel gas
dance with internationally recognized principles on standard-
pipelines for direct burial and reliner applications. The pipe
ization established in the Decision on Principles for the
andfittingscoveredbythisspecificationareintendedforusein
Development of International Standards, Guides and Recom-
the transmission and distribution of natural gas. Requirements
mendations issued by the World Trade Organization Technical
for the qualifying of polyethylene systems for use with
Barriers to Trade (TBT) Committee.
liquefied petroleum gas are also covered.
1.1.1 This specification does not cover threaded pipe. De-
2. Referenced Documents
sign considerations are discussed in Appendix X1. In-plant
2.1 ASTM Standards:
qualitycontrolprogramsarespecifiedinAnnexA1andAnnex
2.1.1 Terminology:
A2.
D1600TerminologyforAbbreviatedTermsRelatingtoPlas-
1.1.2 See Specification F2619/F2619M for polyethylene
tics
piping for pressure or non-pressure oil and gas producing
F412Terminology Relating to Plastic Piping Systems
applications to convey fluids such as oil, dry or wet gas,
2.1.2 Test Methods for:
multiphase fluids, and non-potable oilfield water.
D638Test Method for Tensile Properties of Plastics
1.2 Thetextofthisspecificationreferencesnotes,footnotes,
D1238Test Method for Melt Flow Rates of Thermoplastics
and appendixes which provide explanatory material. These
by Extrusion Plastometer
notesandfootnotes(excludingthoseintablesandfigures)shall
D1598Test Method for Time-to-Failure of Plastic Pipe
not be considered as requirements of the specification.
Under Constant Internal Pressure
1.3 Thevaluesstatedininch-poundunitsaretoberegarded
D1599Test Method for Resistance to Short-Time Hydraulic
as standard. The values given in parentheses are mathematical
Pressure of Plastic Pipe, Tubing, and Fittings
conversions to SI units that are provided for information only
D2122Test Method for Determining Dimensions of Ther-
and are not considered standard.
moplastic Pipe and Fittings
D2290Test Method for Apparent Hoop Tensile Strength of
1.4 The following is an index of the annexes and appendix
Plastic or Reinforced Plastic Pipe
in this specification:
D2837Test Method for Obtaining Hydrostatic Design Basis
Annex Subject
forThermoplasticPipeMaterialsorPressureDesignBasis
Annex A1 In-Plant Quality Control for all materials up to 12 in.
Annex A2 In-Plant Quality Control for PE materials 14 in. and larger.
for Thermoplastic Pipe Products
F1473Test Method for Notch Tensile Test to Measure the
Appendixes Subject
Resistance to Slow Crack Growth of Polyethylene Pipes
Appendix Design Consideration
X1
and Resins
1.5 The following precautionary caveat pertains only to the
2.1.3 Practices for:
test method portion, Section 6, of this specification. This
D543Practices for Evaluating the Resistance of Plastics to
standard does not purport to address all of the safety concerns,
Chemical Reagents
D618Practice for Conditioning Plastics for Testing
This specification is under the jurisdiction ofASTM Committee F17 on Plastic
Piping Systems and is the direct responsibility of Subcommittee F17.60 on Gas. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Dec. 1, 2020. Published December 2020. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1966. Last previous edition approved in 2019 as D2513–19. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/D2513-20. the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D2513−20
D1435Practice for Outdoor Weathering of Plastics Rupture Data to Determine Long-Term Hydrostatic
D1898Practice for Sampling of Plastics (Withdrawn 1998) Strength of Thermoplastic Pipe Materials
D2774PracticeforUndergroundInstallationofThermoplas- ISO 12162Thermoplastic Materials for Pipes and Fittings
tic Pressure Piping for Pressure Applications—Classification and
D2565Practice for Xenon-Arc Exposure of Plastics In- Designation—Overall Service (Design) Coefficient
tended for Outdoor Applications ISO 13477Thermoplastics pipes for the conveyance of
F2620PracticeforHeatFusionJoiningofPolyethylenePipe fluids – Determination of resistance to rapid crack propa-
and Fittings gation (RCP) – Small scale steady-state test (S4 test)
G155Practice for Operating XenonArc LightApparatus for ISO 13478Thermoplastics pipe for the conveyance of fluids
Exposure of Non-Metallic Materials – Determination of resistance to rapid crack propagation
2.1.4 Specification for: (RCP) – Full-scale test (FST)
D2683Specification for Socket-Type Polyethylene Fittings
2.6 Plastic Pipe Institute
for Outside Diameter-Controlled Polyethylene Pipe and
PPI TR-3HDB/HDS /PDB/ SDB/MRS Policies
Tubing
PPI TR-4HDB/HDS/SDB/PDB/MRS Listed Materials
D3261SpecificationforButtHeatFusionPolyethylene(PE)
PPI TR-33Generic Butt Fusion Joining for Polyethylene
Plastic Fittings for Polyethylene (PE) Plastic Pipe and
Gas Pipe
Tubing
PPI TR-41Generic Saddle Fusion Joining Procedure for
D3350Specification for Polyethylene Plastics Pipe and Fit-
Polyethylene Gas Piping
tings Materials
PPI TN-30/2006Requirements for the Use of Rework Ma-
F1055Specification for Electrofusion Type Polyethylene
terials in Polyethylene Gas Pipe
Fittings for Outside Diameter Controlled Polyethylene
PPITR-9 Recommended Design Factors and Design Coef-
and Crosslinked Polyethylene (PEX) Pipe and Tubing
ficients for Thermoplastic Pressure pipe
F1563Specification for Tools to Squeeze-off Polyethylene
2.7 Other Documents:
(PE) Gas Pipe or Tubing
National Fire Protection Association: NFPA 58Storage and
F2138Specification for Excess FlowValves for Natural Gas
Handling Liquefied Petroleum Gases
Service
F2619/F2619MSpecificationforHigh-DensityPolyethylene 3. Terminology
(PE) Line Pipe
3.1 Definitions—Definitions are in accordance with Termi-
F2897Specification for Tracking and Traceability Encoding
nology F412, and abbreviations are in accordance with Termi-
System of Natural Gas Distribution Components (Pipe,
nology D1600, unless otherwise specified.
Tubing, Fittings, Valves, and Appurtenances)
3.2 The gas industry terminology used in this specification
2.2 ANSI Standards:
is in accordance with ANSIB31.8 or OPS 49 CFR Part 192,
B16.40 Manually Operated Thermoplastic Gas Shutoffs
unless otherwise indicated.
and Valves in Gas Distribution Systems
3.3 Theterm pipeusedhereinreferstobothpipeandtubing
B 31.8Gas Transmission and Distribution Piping Systems
unless specifically stated otherwise.
2.3 Federal Specifications:
3.4 re-rounding equipment—equipment used to reform the
Fed. Std. No. 123Marking for Shipment (Civil Agencies)
pipe and permanently reduce ovality to 5% or less.
OPS 49 CFR Part 192Title 49, Code of Federal Regula-
tions
3.5 rounding equipment—equipment, devices, clamps, and
so forth, used to temporarily hold the pipe round while
2.4 Military Standards:
out-of-roundness measurements are made, or a joining proce-
MIL-STD-129 Marking for Shipment and Storage
dure (heat fusion, electrofusion, or mechanical) is performed.
MIL-STD-1235(ORD) Single- and Multi-Level Continuous
Sampling Procedures and Tables for Inspection by Attri-
3.6 pipe material designated code—the pipe material des-
butes
ignation code shall consist of the abbreviation for the type of
2.5 ISO Standards :
plastic (PE) followed by Arabic numerals which describe the
ISO 4437 Buried polyethylene (PE) pipes for the supply of
short term properties in accordance with applicable Specifica-
gaseous fuels-Metric series-Specifications
tion D3350, the hydrostatic design stress for water at 73.4°F
ISO 9080 Thermoplastics Pipes for the Transport of
(23°C) in units of 100 psi with any decimal figures dropped.
Fluids—Methods of Extrapolation of Hydrostatic Stress
Wherethehydrostaticdesignstresscodecontainslessthantwo
figures, a zero is used before the number. Thus, a complete
material designation code shall consist of PE and four figures
The last approved version of this historical standard is referenced on
for PE materials. For example, PE2708 is a grade PE27
www.astm.org.
polyethylene with an 800psi design stress for water at 73.4°F
Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
4th Floor, New York, NY 10036, http://www.ansi.org.
Available from DLA Document Services, Building 4/D, 700 Robbins Ave.,
Philadelphia, PA 19111-5094, http://quicksearch.dla.mil. Available from Plastics Pipe Institute (PPI), 105 Decker Court, Suite 825,
Available from International Organization for Standardization (ISO), 1, ch. de Irving, TX 75062, http://www.plasticpipe.org.
la Voie-Creuse, Case postale 56, CH-1211, Geneva 20, Switzerland, http:// Available from National Fire Protection Association (NFPA), 1 Batterymarch
www.iso.ch. Park, Quincy, MA 02169-7471, http://www.nfpa.org.
D2513−20
(23°C).The hydrostatic design stresses for gas are not used in 4.4 Classification—Polyethylene materials suitable for use
this designation code. in the manufacture of pipe and fittings under this specification
shall meet Table 1 requirements for the applicable pipe
3.7 dimension ratio (DR)—theratioofpipediametertowall
material designation code.
thickness. It is calculated by dividing the specified outside
diameterofthepipe,ininches(mm),bytheminimumspecified
NOTE 3—References and material descriptions for PE 2306, PE 2406,
wall thickness, in inches (mm). The standard dimension ratio PE 2606, PE 3306, PE 3406, PE 3408, PE 3608, PE 3710, and PE 4608
have been removed from D2513. Elimination of these materials does not
(SDR) is a common numbering system which is derived from
affect the pipelines that are in service. They can still be used for gas
the ANSI preferred number series R10.
transmissionordistribution.Themainreasonforremovingthesematerials
3.8 toe-in—a small reduction of the outside diameter at the from this standard is to reflect the current state of the art in PE piping
specified for applications within the scope of this specification.
cut end of a length of thermoplastic pipe.
4.5 Resistance to Slow Crack Growth (SCG)—Use Test
4. Materials
Method F1473 on compression molded plaques at a stress of
2.4MPabasedontheunnotchedareaandatesttemperatureof
4.1 General—ThePEusedtomakepipeandfittingsshallbe
80°C. Notch depth shall be in accordance with Table1 in Test
PE or reworked PE (see 4.2 and 4.4) and shall have a Plastics
Method F1473. Materials shall meet the Slow Crack Growth
Pipe Institute (PPI) long-term hydrostatic design stress and
Resistance requirements in Table 1.
hydrostatic design basis rating.
4.2 Rework Material—Clean rework material of the same 4.6 Additive Classes—Polyethylene material compounds
commercial designation, generated from the manufacturer’s shall meet Specification D3350 code C or E. Code C material
own pipe and fitting production shall not be used unless the compounds shall have 2 to 3 percent carbon black. Code E
pipe and fitting produced meet all the requirements of this material compounds shall be yellow with UV stabilizer.
specification. The use of these rework materials shall be
4.7 Thermal Stability—The PE material shall contain suffi-
governed by the requirements of 4.3 and PPI TN-30/2006. In
cient antioxidant so that the minimum induction temperature
pipe, rework materials shall be limited to a maximum of 30%
shall be 428°F (220°C) when tested in accordance with
by weight.
Specification D3350.The sample shall be representative of the
NOTE 1—The requirements for rework materials herein are intended to cross section of the pipe or fittings.
incorporateprudentspecificationstoensurethatthepotentialforcontami-
4.8 Hydrostatic Design Basis (HDB) Substantiation —The
nationingaspipingproducts,thatmeetthisspecification,isreducedtothe
extent possible. It is imperative to emphasize that rework materials have HDBforPEmaterialsat73°F(23°C)shallbesubstantiatedto
not been identified as the cause of any field failures.The requirements for
be linear to 50 years as per Test Method D2837, Section 5.7.
rework materials were developed by the consensus of interested parties
including product manufacturers, gas utility companies, and regulatory
NOTE 4—The long-term hydrostatic strength at 50 years in accordance
agencies. with Test Method D2837 is not to be used for any pressure rating
NOTE 2—Regulatory requirements may prohibit the use of rework
calculations. The MAOP is still calculated using the HDB obtained from
materials. When regulatory requirements prohibit the use of rework, Test Method D2837 long-term hydrostatic strength at 100 000 h. PE
rework material cannot be used in the production of PE pipe intended for
compounds with a thermoplastic pipe material designation code of PE
use in natural gas distribution and transmission systems. 2708 and PE 4710 as well as those compounds denoted in PPI TR-4 with
anasterisk(*)meetthesubstantiationrequirementofTestMethodD2837.
4.3 Documentation—A documentation system to allow for
traceability of raw materials including percentage and material 4.9 Resistance to Rapid Crack Propagation (RCP) for
classification(ordesignation,ifapplicable)ofreworkmaterials Material—ThePEmaterialclassification(formulation)usedin
used in the manufacture of the pipe product meeting the the manufacture of pipe and fittings under this specification
requirementsofthisspecificationshallexistandbesuppliedto shall be tested for resistance to failure by RCP in accordance
the purchaser, if requested. with the procedures set forth in ISO 13477 (S4 Test) or ISO
TABLE 1 Polyethylene Compound Requirements
Pipe Material Designation Code
PE 2708 PE 4710
Density Cell Classification per Specification 24
D3350
SCG Resistance Cell Classification per 77
Specification D3350
HDS for water at 73 °F (23 °C) per Test 800 (5.5) 1000 (6.9)
Method D2837 and PPI TR-3, psi (MPa)
Color and UV Stabilizer Code per Speciif- CorE CorE
cation D3350
Melt flow rate per Test Method D1238, g/10 #0.40 Cond. 190/2.16 or #0.15 Cond. 190/2.16 or
min #20 Cond. 190/21.6 #20 Cond. 190/21.6
HDB at 73ºF (23ºC) per Test Method 1250 (8.6) 1600 (11.0)
D2837 and PPI TR-3, psi (MPa)
Minimum HDB at 140ºF (60ºC) per Test 800 (5.5) 800 (5.5)
Method D2837 and PPI TR-3, psi (MPa)
D2513−20
measuringtheductilitypropertiesofthepipematerialexposedtoartificial
13478(FullScaleTest(FST)).Thedataobtainedshallbemade
weathering. These requirements and test methods are based on expected
available upon request without limitations on disclosure, and
UV exposure levels in North America. Alternate requirements and
shallnotsubsequentlybesubjecttodisclosurelimitationswhen
alternatedeterminationmethodsmaybeappropriateinotherregionsofthe
used by others. The values obtained are applicable to all pipes
world. As an example ISO 4437 standard requires a minimum resistance
with the wall thickness of the pipe tested and all thinner wall
to an accumulation of 3.6GJ for non-black polyethylene materials.
pipes. In case of conflict, the RCP results of ISO 13478 shall
4.11 Qualification for LPG Service—Materials that qualify
apply.
for natural gas service and that carry a recommended HDB for
140°F in accordance with 5.6, also qualify for LPG service
NOTE 5—While S4 or FST testing of any combination of outside
diameterandSDRispermittedinfulfillmentoftherequirementfortesting without the need for further testing.
PE material resistance to RCP, S4 testing of SDR 9 or SDR 11 PE pipe
NOTE10—ThetermsLPGandLPGgasaresynonymousandonlyapply
specimens is currently the most common industry practice.
to a particular kind of fuel gas. For compositions and properties of LPG
NOTE 6—Caution should be exercised in applying the RCP test results
gases see NFPA 58, Appendix B.
obtainedononeSDRorDRofpipeacrossaseriesofpipeSDR’sorDR’s
produced from the same PE material classification (formulation). Indus-
trial research to clarify the relationships between FST and S4 testing is
5. Requirements
ongoing at this time, particularly as it relates to the applicability of RCP
5.1 General—Pipe shall be supplied in either coils or
testresultsobtainedononeSDRorDRofpipetootherSDR’sorDR’sof
straightlengths.Anypipesuppliedincoilsmustmeetthesame
pipe produced from the same PE material classification (formulation).
Consult the resin manufacturer regarding the applicability of RCP test
requirements before and after coiling.
results across diameters or SDR’s, or both. Additional information
5.2 Workmanship—The pipe and fittings shall be homoge-
regarding the use of RCP data is presented in ISO 4437.
neous throughout and free of visible cracks, holes, foreign
4.10 UV Resistance—PE materials shall be Code C or E as
inclusion, blisters, and dents, or other injurious defects. The
defined in Specification D3350. Code C material shall contain
pipe and fittings shall be as uniform as commercially practi-
2 to 3 percent well dispersed carbon black, and due to the
cable in color, opacity, density, and other physical properties.
absorptive properties of the carbon black, is considered to be
5.3 Pipe and Tubing Dimensions and Tolerances:
stabilized against deterioration from unprotected exposure to
5.3.1 Dimension—The dimensions shall be specified by
UV for not less than 10 years. Code E material shall be
stabilized and protected against deterioration from unprotected wall thickness and outside diameter.
5.3.1.1 Diameters—The outside diameter shall meet the
UV exposure for not less than 3 years.
requirements given in Table 2 or Table 3 when measured in
4.10.1 PE compounds designated as Code C containing 2 to
accordance with 6.5.
3% carbon black shall be considered stabilized against dete-
5.3.1.2 Toe-In—Whenmeasuredinaccordancewith6.5.1.1,
rioration for not less than 10 years without the need for
additional testing. Black PE pipe coextruded with yellow theoutsidediameteratthecutendofthepipeshallnotbemore
than 1.5% smaller than the undistorted outside diameter.
stripe(s) shall be considered stabilized against deterioration
from unprotected exposure to UV for not less than 10 years. Measurementoftheundistortedoutsidediametershallbemade
no closer than 1.5 pipe diameters or 11.8 in. (300 mm),
NOTE 7—Consult with pipe manufacturer on UV Resistance of black
whichever distance is less, from the cut end of the pipe.
pipes with yellow stripe(s) for conformance to the performance require-
Undistorted outside diameter shall meet the requirements of
ments of code “C” material.
Table 2 or Table 3.
4.10.2 PE compounds designated as Code E shall be con-
5.3.1.3 Wall Thickness—The wall thickness shall be as
sidered stabilized against deterioration from unprotected expo-
specified in Table 3 or Table 4 when measured in accordance
sure to UV for not less than 3 years when meeting the
with 6.5.1.2. The minimum wall thickness at any point of
followingcriteriafollowingexposuretoactualoutdoor(natural
measurementshallbenotlessthantheminimumwallthickness
sunlight) weathering for up to 3 years in accordance with
specified in Table 3 or Table 4.
Practice D1435 or accelerated weathering in accordance with
5.3.1.4 Wall Thickness Eccentricity Range—The wall thick-
PracticeD2565andPracticeG155fortheequivalentofatleast
ness eccentricity range shall be within 12% when measured in
3 years natural sunlight: (a) all tensile bar specimens tested in
accordance with 6.5.1.3.
accordancewithTestMethodD638shallhaveanelongationat
5.3.1.5 Ovality—The ovality (cross section) of 3 in. IPS
break value greater than 400% indicating the equivalency of
(88.9 mm) and smaller pipe shall not exceed 5% when
the PE material before and after UV exposure against the
measured in accordance with 6.5.3. Measurements of coiled
elongation at break requirement in Specification D3350; and
pipe shall be made on a sample cut from the coil, and in case
(b) all tensile bar specimens tested in accordance with Test
of disagreement, conditioned per 6.3.
Method D638 shall retain a minimum of 50% of their original
elongation at break values. Test data shall be made available
NOTE 11—Other factors, that is, installation compaction, static soil
loading, and dynamic vehicular loads may increase the ovality; therefore,
from the manufacturer upon request.
5%waschosenasthelimitfortheamountcontributedbymanufacturing,
NOTE8—StudieshaveshownHDPEexposedtoXenonArcviaPractice packing, in-plant storage, and shipping. For further information, see (1) .
G155-ACycle 1 give approximately 4.4 times the acceleration to outdoor
Florida exposure.Therefore approximately 2000 hours XenonArc testing
would equal about 1-year outdoor exposure in Florida or 2-years in
southern Canada.
The boldface numbers in parentheses refer to a list of references at the end of
NOTE 9—The determination for UV resistance is often based on this standard.
D2513−20
TABLE 2 Outside Diameters and Tolerances for Plastic Pipe, in. (mm)
Nominal Maximum Out-of-Roundness
Pipe Outside Diameter Tolerance
SDR 17
Size
SDR 32.5 SDR 26 SDR 21 SDR 13.5
SDR 11
⁄2 0.840 (21.3) ±0.004 (±0.102) . . 0.03(0.762) 0.016(0.406)
⁄4 1.050 (26.7) ±0.004 (±0.102) . . 0.03(0.762) 0.02(0.508)
1 1.315 (33.4) ±0.005 (±0.127) . . 0.03(0.762) 0.02(0.508)
1 ⁄4 1.660 (42.1) ±0.005 (±0.127) . . 0.03(0.762) 0.024(0.61)
1 ⁄2 1.900 (48.3) ±0.006 (±0.152) . . 0.06(1.524) 0.024(0.61)
2 2.375 (60.3) ±0.006 (±0.152) . . 0.06(1.524) 0.024(0.61)
2 ⁄2 2.875 (73.0) ±0.007 (±0.179) . . 0.06(1.524) 0.03(0.762)
3 3.500 (88.9) ±0.008 (±0.203) . . 0.06(1.524) 0.03(0.762)
3 ⁄2 4.000 (101.6) ±0.008 (±0.203) . . 0.1(2.5) 0.03(0.762)
4 4.500 (114.3) ±0.009 (±0.229) . . 0.1(2.5) 0.03(0.762)
5 5.563 (141.3) ±0.010 (±0.254) . . 0.1(2.5) 0.06(1.524)
6 6.625 (168.3) ±0.011 (±0.279) 0.12(3) 0.11(2.74) 0.1(2.5) 0.07(1.778)
8 8.625 (219.1) ±0.013 (±0.330) 0.24(6.1) 0.16(4.06) 0.12(3) 0.08(2.04)
10 10.750 (273.0) ±0.015 (±0.381) 0.24(6.1) 0.2(5.08) 0.14(3.58) 0.1(2.5)
12 12.750 (323.8) ±0.017 (±0.432) 0.28(7.12) 0.2(5.08) 0.14(3.58) 0.1(2.5)
14 14.000 (355.6) ±0.063 (±1.60) 0.308(7.82) 0.224(5.68) 0.154(3.91) 0.112(2.84)
16 16.000 (406.4) ±0.072 (±1.83) 0.352(8.94) 0.256(6.50) 0.176(4.47) 0.128(3.25)
18 18.000 (457.2) ±0.081 (±2.06) 0.396(10.05) 0.288(7.31) 0.198(5.02) 0.144(3.65)
20 20.000 (508.0) ±0.090 (±2.29) 0.44(11.1) 0.32(8.12) 0.22(5.58) 0.16(4.06)
22 22.000 (558.8) ±0.099 (±2.51) 0.484(12.29) 0.352(8.94) 0.242(6.14) 0.176(4.47)
24 24.000 (609.6) ±0.108 (±2.74) 0.528(13.41) 0.384(9.75) 0.264(6.70) 0.192(4.87)
TABLE 3 PE Tubing-Diameters, Wall Thicknesses, and
5.4 Minimum Hydrostatic Burst Pressure/Apparent Tensile
Tolerances, in. (mm)
Strength (Quick Burst)—The pipe or system shall fail in a
Nominal Minimum Wall
ductile manner when tested in accordance with Test Method
Outside
Tubing Tolerance Wall Thickness
Diameter
D1599.Forpipesizesabove4-in.nominaldiameter,thetesting
Size (CTS) Thickness Tolerance
1 lab shall be allowed to replace the quick burst test (Test
⁄4 0.375 (9.52) ±0.004 (±0.10) 0.062 (1.58) +0.006 (+0.15)
⁄8 0.500 (12.7) ±0.004 (±0.10) 0.062 (1.58) +0.006 (+0.15) Method D1599) by the apparent ring tensile strength test (Test
⁄2 0.625 (15.9) ±0.004 (±0.10) 0.062 (1.58) +0.006 (+0.15)
Method D2290). The minimum apparent tensile strength at
⁄2 0.625 (15.9) ±0.004 (±0.10) 0.090 (2.27) +0.009 (+0.23)
yieldwhendeterminedinaccordancewith6.8shallbe2520psi
⁄2 0.625 (15.9) ±0.004 (±0.10) 0.104 (2.64) +0.010 (+0.25)
⁄4 0.875 (22.2) ±0.004 (±0.10) 0.062 (1.58) +0.006 (+0.15)
(17.4 MPa) for PE 2708 pipe or 2900 psi (20.0 MPa) for PE
⁄4 0.875 (22.2) ±0.004 (±0.10) 0.077 (1.95) +0.008 (+0.20)
4710 pipe.
⁄4 0.875 (22.2) ±0.004 (±0.10) 0.090 (2.27) +0.009 (+0.23)
1 1.125 (28.6) ±0.005 (±0.13) 0.062 (1.58) +0.007 (+0.18)
NOTE 13—The requirements in 5.3.1.1 and 5.3.1.3 are for laboratory
1 1.125 (28.6) ±0.005 (±0.13) 0.090 (2.27) +0.011 (+0.28)
proof testing only and should not be interpreted as applicable to on-site
1 1.125 (28.6) ±0.005 (±0.13) 0.099 (2.51) +0.012 (+0.31)
1 1.125 (28.6) ±0.005 (±0.13) 0.101 (2.56) +0.012 (+0.31)
testing for acceptance of installed systems larger than 12 in. See
1 1.125 (28.6) ±0.005 (±0.13) 0.121 (3.07) +0.015 (+0.38)
appropriate installation standards or manufacturer’s recommendations for
1 ⁄4 1.375 (34.9) ±0.005 (±0.13) 0.062 (1.58) +0.007 (+0.18)
field test procedures.
1 ⁄4 1.375 (34.9) ±0.005 (±0.13) 0.090 (2.27) +0.011 (+0.28)
1 ⁄4 1.375 (34.9) ±0.005 (±0.13) 0.121 (3.07) +0.015 (+0.38)
5.5 Chemical Resistance—The pipe and fittings shall not
1 ⁄4 1.875 (47.6) ±0.006 (±0.15) 0.062 (1.58) +0.007 (+0.18)
increase in weight more than 0.5% (1.0% for toluene in
methanol).Where the test specimen is a pipe ring, the material
shall not change more than 612% in apparent tensile yield
(1)Before or during installation, coiled pipe larger than 3
strengthwhenmeasuredinaccordancewith6.9.Wherethetest
in. IPS (88.9 mm) shall be processed by the installer through
specimen is a plaque, the material shall not change more than
re-rounding equipment that corrects ovality to 5% or less.
612% in tensile strength at yield when measured in accor-
NOTE12—Ovalityisapackagingconditionthatoccurswhenroundable
dance with Test Method D638.
pipe is wound into a coil—the pipe flattens out as it is coiled. Ovality is
correctedwhenjoiningequipmentisappliedtoroundablepipe,orbyfield
NOTE 14—This pipe test is only an indication of what will happen as a
processing roundable pipe through re-rounding and straightening equip-
result of short term exposure to these chemicals. For longterm results,
ment during installation.
additional testing is required.
5.3.1.6 Length—The pipe shall be supplied in straight
5.6 Melt Index—Melt index is the flow rate of PE material
lengths or coils as agreed upon between the manufacturer and
when measured in accordance with Test Method D1238,
the purchaser. The length shall not be less than the minimum
condition 190/2.16 (formerly Condition E). Materials that
length agreed upon when corrected to 73°F (23°C).
recordzeroflowundercondition190/2.16shallbemeasuredin
5.3.1.7 When sizes other than those listed in Table 2, Table
3 or Table 4 are used, tolerances shall be: for outside diameter, accordance with condition 190/21.6 (formerly condition F).
The melt index of pipe/fitting shall meet the designated
use same tolerance of next smaller size; for wall thickness, use
same tolerance percentage as shown in the tables. category in Table 5. The sample shall be representative of the
D2513−20
A,B
TABLE 4 Wall Thicknesses and Tolerances for Plastic Pipe, in (mm)
Nominal Pipe Size
C
DR Minimum Tolerance
(IPS)
D
⁄2 0.062 (1.58) +0.007 (+0.178)
11.0 0.076 (1.93) +0.009 (+0.229)
9.33 0.090 (2.29) +0.011 (+0.279)
D
⁄4 0.090 (2.29) +0.011 (+0.279)
11.0 0.095 (2.41) +0.011 (+0.279)
Sch 40 0.113 (2.87) +0.014 (+0.356)
D
1 0.090 (2.29) +0.011 (+0.279)
13.5 0.097 (2.46) +0.012 (+0.305)
11.0 0.120 (3.05) +0.014 (+0.356)
9.9 0.133 (3.38) +0.016 (+0.406)
9.33 0.140 (3.56) +0.017 (+0.432)
D
1 ⁄4 0.090 (2.29) +0.011 (+0.279)
17.0 0.098 (2.49) +0.012 (+0.305)
13.5 0.123 (3.12) +0.015 (+0.381)
Sch 40 0.140 (3.56) +0.017 (+0.432)
11.0 0.151 (3.84) +0.018 (+0.457)
10.0 0.166 (4.22) +0.020 (+0.508)
9.33 0.178 (4.52) +0.021 (+0.533)
6.0 0.277 (7.04) +0.033 (+0.838)
D
1 ⁄2 0.090 (2.29) +0.011 (+0.279)
17 0.112 (2.85) +0.013 (+0.330)
13.5 0.141 (3.58) +0.017 (+0.432)
Sch 40 0.145 (3.68) +0.017 (+0.432)
11 0.173 (4.39) +0.021 (+0.533)
2 21 0.113 (2.87) +0.014 (+0.356)
17 0.140 (3.56) +0.017 (+0.432)
Sch 40 0.154 (3.91) +0.018 (+0.457)
13.5 0.176 (4.47) +0.021 (+0.533)
11 0.216 (5.49) +0.026 (+0.660)
9.33 0.255 (6.48) +0.031 (+0.787)
2 ⁄2 21 0.137 (3.48) +0.016 (+0.406)
17 0.169 (4.29) +0.020 (+0.508)
13.5 0.213 (5.41) +0.026 (+0.660)
11 0.261 (6.63) +0.031 (+0.787)
3 21 0.167 (4.24) +0.020 (+0.508)
17 0.206 (5.23) +0.025 (+0.635)
Sch 40 0.216 (5.49) +0.026 (+0.660)
13.5 0.259 (6.58) +0.031 (+0.787)
11.5 0.304 (7.72) +0.036 (+0.914)
11 0.318 (8.08) +0.038 (+0.965)
9.33 0.375 (9.53) +0.045 (+1.143)
3 ⁄2 21 0.190 (4.83) +0.023 (+0.584)
17 0.236 (5.99) +0.028 (+0.711)
13.5 0.296 (7.52) +0.036 (+0.914)
11 0.363 (9.22) +0.044 (+1.118)
4 21 0.214 (5.44) +0.026 (+0.660)
19 0.237 (6.02) +0.028 (+0.711)
17 0.265 (6.73) +0.032 (+0.813)
13.5 0.333 (8.46) +0.040 (+1.016)
11.5 0.391 (9.93) +0.047 (+1.194)
11.0 0.409 (10.39) +0.049 (+1.246)
9.33 0.482 (12.24) +0.058 (+1.473)
5 21.6 0.258 (6.55) +0.031 (+0.787)
21 0.265 (6.73) +0.032 (+0.813)
17 0.327 (8.31) +0.039 (+0.991)
13.5 0.412 (10.46) +0.050 (+1.270)
11 0.506 (12.85) +0.061 (+1.549)
6 32.5 0.204 (5.18) +0.024 (+0.610)
26 0.255 (6.48) +0.031 (+0.787)
23.7 0.280 (7.11) +0.034 (+0.864)
21 0.315 (8.00) +0.038 (+0.965)
17 0.390 (9.91) +0.047 (+1.194)
13.5 0.491 (12.47) +0.059 (+1.499)
D2513−20
TABLE4 Continued
Nominal Pipe Size
C
DR Minimum Tolerance
(IPS)
11.5 0.576 (14.63) +0.069 (+1.753)
11.0 0.602 (15.29) +0.072 (+1.829)
8 32.5 0.265 (6.73) +0.032 (+0.813)
26 0.332 (8.43) +0.040 (+1.016)
21 0.411 (10.44) +0.049 (+1.245)
17 0.507 (12.90) +0.061 (+1.549)
13.5 0.639 (16.23) +0.077 (+1.956)
11.5 0.750 (19.05) +0.090 (+2.286)
11 0.784 (19.91) +0.094 (+2.388)
10 32.5 0.331 (8.41) +0.040 (+1.016)
26 0.413 (10.49) +0.050 (+1.270)
21 0.512 (13.00) +0.061 (+1.549)
17 0.632 (16.05) +0.076 (+1.930)
13.5 0.796 (20.22) +0.096 (+2.438)
11.5 0.935 (23.75) +0.112 (+2.845)
11 0.977 (24.82) +0.117 (+2.972)
12 32.5 0.392 (9.96) +0.047 (+1.194)
26 0.490 (12.45) +0.059 (+1.499)
21 0.607 (15.42) +0.073 (+1.854)
17 0.750 (19.05) +0.090 (+2.286)
13.5 0.944 (23.98) +0.113 (+2.870)
11.5 1.109 (28.17) +0.133 (+3.378)
11 1.159 (29.44) +0.139 (+3.531)
14 32.5 0.431 (10.942) +0.052 (+1.313)
26 0.538 (13.677) +0.065 (+1.641)
21 0.667 (16.933) +0.080 (+2.032)
17 0.824 (20.918) +0.099 (+2.510)
13.5 1.037 (26.341) +0.124 (+3.161)
11.5 1.217 (30.922) +0.146 (+3.711)
11 1.273 (32.327) +0.153 (+3.879)
16 32.5 0.492 (12.505) +0.059 (+1.501)
26 0.615 (15.631) +0.074 (+1.876)
21 0.762 (19.352) +0.091 (+2.322)
17 0.941 (23.906) +0.113 (+2.869)
13.5 1.185 (30.104) +0.142 (+3.612)
11.5 1.391 (35.339) +0.167 (+4.241)
11 1.455 (36.945) +0.175 (+4.433)
18 32.5 0.554 (14.068) +0.066 (+1.688)
26 0.692 (17.585) +0.083 (+2.110)
21 0.857 (21.771) +0.103 (+2.613)
17 1.059 (26.894) +0.127 (+3.227)
13.5 1.333 (33.867) +0.160 (+4.064)
11.5 1.565 (39.757) +0.188 (+4.771)
11 1.636 (41.564) +0.196 (+4.988)
20 32.5 0.615 (15.631) +0.074 (+1.876)
26 0.769 (19.538) +0.092 (+2.345)
21 0.952 (24.190) +0.114 (+2.903)
17 1.176 (29.882) +0.141 (+3.586)
13.5 1.481 (37.630) +0.178 (+4.516)
11.5 1.739 (44.174) +0.209 (+5.301)
11 1.818 (46.182) +0.218 (+5.542)
22 32.5 0.677 (17.194) +0.081 (+2.063)
26 0.846 (21.492) +0.102 (+2.579)
21 1.048 (26.610) +0.126 (+3.193)
17 1.294 (32.871) +0.155 (+3.944)
13.5 1.630 (41.393) +0.196 (+4.967)
11.5 1.913 (48.591) +0.230 (+5.831)
11 2.000 (50.800) +0.240 (+6.096)
24 32.5 0.738 (18.757) +0.089 (+2.251)
26 0.923 (23.446) +0.111 (+2.814)
21 1.143 (29.029) +0.137 (+3.483)
D2513−20
TABLE4 Continued
Nominal Pipe Size
C
DR Minimum Tolerance
(IPS)
17 1.412 (35.859) +0.169 (+4.303)
13.5 1.778 (45.156) +0.213 (+5.419)
11.5 2.087 (53.009) +0.250 (+6.361)
11 2.182 (55.418) +0.262 (+6.650)
A
The sizes listed in Table 4 are those commercially available sizes used by the gas industry.
B
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 thickness
plus the stated tolerance. All tolerances are on the plus side of the minimum requirement.
C
The DR shown are designations commonly accepted by the gas industry and do not calculate exactly.
D
These wall thicknesses are minimum and are not a function of the dimension ratios.
TABLE 5 Pipe Category
Category
Property Test Method
AB C D E F G H
Temperature, . . . 100 (38) 120 (49) 140 (60) 160 (71) 180 (82) 200 (93) . . . .
°F (°C)
Hydrostatic D2837 400 (2.8) 500 (3.4) 630 (4.3) 800 (5.5) 1000 (6.9) 1250 (8.6) 1600 (11.0) 2000 (13.8)
Design
Basis, psi
(MPa)
A BC
Melt Index D1238 >0.5 0.2–0.5 0.01–0.3 <0.01 . . .
Examples: CDB - At 140ºF (60ºC) the HDB is 800 psi (5.5 MPa). The approximate melt index range is 0.2 to 0.5 g/10 min for this PE pipe.
A
DF - At 160ºF (71ºC) the HDB is 1250 psi (8.6 MPa) .
A
The Melt Index information in this table is intended to provide guidance relating to heat fusion joining of PE materials, not for classification of materials. This property
is not applicable to non-PE materials or to mechanical fittings. See 7.5.
B
Typically melt flow measured under condition 190/21.6 is less than 4.01 g/10 min.
C
WhenaPEpipeorfittingismarkedper7.2or7.5withtheletter“E,”itaffirmsthatthemanufacturerhasverifiedtheapplicabilityofgenericfusionjoiningwiththeirproducts
in accordance with PPI TR-33 and PPI TR-41 by joining to itself and to other “E” materials and testing the joints in accordance with applicable regulations. However,
qualification of joining procedures by operators in accordance with applicable regulations may still be required. Information about manufacturers who have verified PPI
TR-33 and PPI TR-41 generic fusion joining with their products is found in PPI TR-33 and PPI TR-41. Consult PPI and the manufacturer for additional information.
cross section of the pipe or fitting and diced to an appropriate when the wall thickness of the pipe being produced in
size by a method not producing heat. accordance with this standard exceeds that of the pipe used to
establish the resistance to RCP for the PE compound. In these
5.7 Sustained Pressure 73 °F (23 °C)—Fittingsshallnotfail
circumstances, additional testing for resistance to failure by
in less than 1000 h when tested in accordance with Test
RCPin accordance with the procedures set forth in ISO 13477
MethodD1598.ForPE2708materials,thestressshallbe1320
(S4 Test) or ISO 13478 (Full Scale Test (FST)) shall be
psi, for PE 4710 materials, the stress shall be 1600 psi.
conducted. In cases of conflict, the RCP results of ISO 13478
5.8 Elevated Temperature Service—piping materials in-
shall apply. The data obtained shall be made available upon
tendedforuseattemperaturesabove100°F(38°C)shallhave
request without limitations on disclosure, and shall not subse-
the PPI hydrostatic design basis (HDB) determined at the
quently be subject to disclosure limitations when used by
specific temperature in accordance with Test Method D2837.
others.
The 100 000-h intercept (long-term strength) shall be catego-
NOTE17—TherequirementsandtestingforresistancetoRCPspecified
rized in accordance with Table 5 and be listed as the “hydro-
in this specification do not provide information for all possible conditions
static design basis of XXX psi at XXX °F (°C) for (compound
of use. The user should consult with the manufacturer and other
name).”
appropriate sources such as resin suppliers, research, academia, etc., to
determine that the RCP resistance provided by the pipe producer is
NOTE15—Manydesignfactorsforelevatedtemperatureservicecannot
sufficient for the intended use.
be covered in this specification. Users should consult applicable codes for
limitations on pertinent maximum temperatures. 5.11 Inside Surface Ductility for Pipe—The inside surface
NOTE 16—In the absence of an HDB established at the specified
of pipe shall be ductile as shown by testing in accordance with
temperature,theHDBofahighertemperaturemaybeusedindetermining
5.11.1, 5.11.2, and 5.11.3. Before testing, specimens shall be
a design pressure rating at the specified temperature by arithmetic
conditioned in accordance with Practice D618 for 40 h at 73.4
interpolation.
6 3.6°F (23 6 2°C) and 50% relative humidity.
5.9 HDB Validation for PE Pipe—The 73°F (23°C) Hy-
NOTE18—IDductilitytestingmayalsobeconductedforqualitycontrol
drostatic Design Basis (HDB) of PE pipe shall be validated by
purposes, however, there is no known data that identifies one test as
thepipeproducerusingthePEvalidationprocedureasoutlined
inferior, equal, or superior to the others, therefore, results from one test
inTestMethodD2837.ForMDPEmaterials,theHDBof1250
should not be evaluated against the results from either of the other two
psi shall be validated; for HDPE materials, the HDB of 1600
tests.
psi shall be validated.
5.11.1 Bend-back Test Method:
5.10 Resistance to Rapid Crack Propagation (RCP) for 5.11.1.1 From the pipe, squarely cut a ring of pipe with a
Pipe—Additional testing for resistance to RCP is required minimumwidthof1 ⁄4(32mm).Theentirewallthicknessmay
D2513−20
be tested, or material may be removed from the OD surface of 5.13 Joints:
the pipe, while maintaining an undisturbed ID surface, to 5.13.1 Heat Fusion:
produce a ring with ⁄8-in. (9.5-mm) wall thickness. 5.13.1.1 Heatfusionjointsofthermoplasticpipeandfittings
shallbemadeinaccordancewithPracticeF2620andtheuser’s
NOTE 19—The ring may be tested in its entirety, or may be cut into
written procedure.
representative sectors to produce bend-back test specimens.
5.13.1.2 PE butt fusion joining shall be between compo-
5.11.1.2 In a well-lit area at 73.4 6 3.6°F (23 6 2°C)
nents (pipes, fittings, or valves) having the same SDR or DR.
perform the following procedure within 5 min: (a) Bend the
Butt fusion between unlike SDR or DR components shall be
specimen inside-out (reverse-bend so that the pipe ID surface
allowed only if it has been demonstrated that long term
is on the outside surface of the bent specimen). (b) Using an
performance is not adversely affected. The minimum require-
apparatus such as a vise or other suitable bending equipment,
ment to demonstrate long term performance shall be the
close the legs of the specimen together. When the specimen
validation procedure for PE in Test Method D2837. The
legs are closed together, the top of the bend-back specimen
Hydrostatic Design Basis (HDB) of the PE material shall be
shall protrude 1 to 1 ⁄4 in. (25 to 32 mm) or two wall
validated using specimens containing butt fusion joints result-
thicknesses, whichever is greater, above the point of closure
ing from different SDRs or DRs. Pipe/pipe joints of the given
(jaws). (c) With the unaided (naked) eye, visually examine the
PE material that pass shall validate pipe/pipe, pipe/fitting, or
protruding reverse-bent pipe ID surface for signs of brittle
fitting/fitting joints of the same SDR ratio for that PE material.
cracking or crazing.
5.13.2 Mechanical—Mechanicalfittingsshallbeinstalledin
5.11.1.3 Any indication of brittle cracking or crazing indi-
accordance with the user’s written procedures and the fitting
cates failure.
manufacturer’s installation instructions. The joint shall be
5.11.2 Elongation-at-Break Test Method :
tested in accordance with the specific design category as
5.11.2.1 Five Test Method D638 Type IV specimens cut in
outlined in 6.10.
thelongitudinaldirectionfromlocationsequallyspacedaround
5.13.3 Electrofusion—Electrofusion joints shall be made in
thecircumferenceofthepipeshallbetestedinaccordancewith
accordance to user’s written procedures and the fitting manu-
Test Method D638 at a cross-head separation speed of 2 in.
facturer’s installation instructions.
(50.8 mm) min, and at 73.4 6 3.6°F (23 6 2°C). If the
5.14 Fittings:
specimenthicknessmustbereducedbymachining,thepipeID
5.14.1 Socket-type fusion fittings shall meet the require-
surface shall be left unaltered.
ments of Specification D2683.
NOTE 20—If the specimen thickness is reduced, the machined side of 5.14.2 Butt-type fusion fittings shall meet the requirements
the specimen must be smooth and the thickness of the specimen in the
of Specification D3261.
gage length must be uniform. Surface cuts or scratches and nonuniform
5.14.3 Electrofusion fittings should meet the requirements
thicknessinthespecimengagelengthcandetrimentallyaffecttestresults.
of Specification F1055.
5.11.2.2 The percent elongation at break for each test
5.15 PE Valves—All PE gas valves shall meet the require-
specimen shall exceed 400%.
ments of ANSI Standard B16.40.
5.11.3 Thermal Stability Test Method—Specimens of the
5.16 Excess Flow Valves—Allexcessflowvalvesshallmeet
pipe inside wall surface not more than 0.005 in. (0.13 mm)
the requirements of Specification F2138.
thick shall demonstrate a minimum induction temperature of
428°F (220°C) when tested in accordance with the Test
6. Test Methods
Method for Thermal Stability in Specification D3350.
6.1 General—The test methods in this specification cover
5.12 Squeeze-Off—Thisrequirementislimitedtopipesizes,
plastic pipe and fittings to be used for gas transmission and
wall thicknesses, squeeze procedures, and conditions deemed
distribution. Test methods that are applicable from other
suitable for squeeze-off in service by the pipe manufacturer.
specifications will be referenced in the paragraph pertaining to
There shall be no leakage or visual evidence of splitting,
that particular test.
cracking, breaking or reduction in 1000-h sustained pressure
6.2 Sampling—Takearepresentativesampleofthepipeand
category when pipe is tested as follows:
fittings sufficient to determine conformance with this specifi-
5.12.1 Prepare six randomly selected pipe specimens in
cation.About40ft(12m)ofpipeisrequiredtoperformallthe
accordance with Test Method D1598 except they shall be
tests prescribed. The number of fittings required varies, de-
unfilled.
pendinguponthesizeandtypeoffitting.Asamplingplanshall
5.12.2 The squeeze-off shall be effected at the mid-point of
be agreed upon by the purchaser and the manufacturer (see
the test specimen, 90° to the point of the measured minimum
Practice D1898).
wall thickness. Close the squeeze bars to the gap stop in
6.2.1 Pipe Test Specimens—Not less than 50% of the test
Specification F1563 and hold in constraint for 4 h. Remove
specimens required for any pressure test shall have at least a
squeeze bars and reround pipe by closing squeeze bars at a
partofthemarkingintheircentralsections.Thecentralsection
point 90° from the squeeze area.
is that portion of pipe which is at least one pipe diameter away
5.12.3 Immediately upon removal of the squeeze-off tool,
from an end closure.
fillthespecimenswithambienttemperaturewater,thatis,67 6
10°F (19.4 6 5.6°C), condition, and test in accordance with 6.3 Conditioning—For those tests where conditioning is
6.6. requiredorunlessotherwisespecified,conditionthespecimens
D2513−20
priortotestingforaminimumof1hinwateror4hinairat73.4 and the applicable fiber stress, whichever is greater. The test
6 3.6°F (23 6 2°C). fiber stress shall be 90% of the hydrostatic design basis
(HDB).
6.4 Test Conditions—Conduct the test in the standard labo-
ratory atmosphere of 73.4 6 3.6°F (23 6 2°C) and 50 65%
NOTE22—Air,methane,ornitrogenmaybesubstitutedforwaterasthe
test medium.
relative humidity, unless otherwise specified.
6.6.2 Maintainthespecimensatthepressuresrequired,held
6.5 Dimensions and Tolerances:
to 610 psi (0.07 MPa), for a period of 1000 h at the test
6.5.1 Pipe—Any length of pipe is used to determine the
temperature 63.6°F (62°C) as specified in 6.6.1.
dimensions. Coiled pipe shall be measured in the natural
6.6.3 Failure of two of the six specimens tested shall
springback condition, unless specified otherwise.
constitutefailureinthetes
...