ASTM F480-14(2022)

Standard Specification for Thermoplastic Well Casing Pipe and Couplings Made in Standard Dimension Ratios (SDR), SCH 40 and SCH 80

ABSTRACT
This specification covers water well casing pipe and couplings made from thermoplastic materials in standard dimension ratios (SDR), SCH 40 and SCH 80. Well casing is produced in either plain end, belled end, or threaded, and is used for water wells, ground water monitoring, leak detection, recovery systems, dewatering systems, and waste disposal. The well casing pipes, well casing pipe couplings, pipe stiffness and flattening, impact resistance, tup puncture resistance, thread, threaded joints, joint strength, and well screens shall be tested to meet the requirements prescribed.
SCOPE
1.1 This specification covers water well casing pipe and couplings made from thermoplastic materials in standard dimension ratios (SDR), SCH 40 and SCH 80.  
1.2 Specifications are provided for the application of these materials to water well and ground water monitoring applications. Flush threaded joint systems are included for screen and casing used primarily in the construction of ground water monitoring wells (see Practice D5092/D5092M).  
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. (See IEEE/ASTM SI 10.)  
Note 1: Certain field conditions may require alternative materials to ensure safe long-term use. The user should consult federal, state, and local codes governing the use of thermoplastic materials for well casing or monitor pipe.
Note 2: This standard specifies dimensional, performance and test requirements for plumbing and fluid handling applications, but does not address venting of combustion gases.  
1.4 Although the pipe sizes and SDR values listed in this specification are generally available, numerous other plastic pipes in Schedule 40 and 80 wall, other SDR values and various outside diameters have been used for well casing. Such products are often selected because they fulfill certain needs and Annex A1 includes a list of these Plastic Pipe Well Casing Specials.  
1.5 The following safety hazards caveat pertains only to the test method portion, Section 6, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.6 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.

General Information

• Status: Published
• Publication Date: 31-Jan-2022
• ICS: 23.040.20 - Plastics pipes
• Technical Committee: F17 - Plastic Piping Systems
• Drafting Committee: F17.61 - Water

Relations

• Refers: ASTM D2241-24 - Standard Specification for Poly(Vinyl Chloride) (PVC) Pressure-Rated Pipe (SDR Series)
• Effective Date: 01-Apr-2024
• Refers: ASTM D1898-68(1989) - Standard Practice for Sampling of Plastics (Withdrawn 1998)
• Effective Date: 29-Sep-2023
• Refers: ASTM D2564-20 - Standard Specification for Solvent Cements for Poly(Vinyl Chloride) (PVC) Plastic Piping Systems
• Effective Date: 01-Aug-2020
• Refers: ASTM D2241-20 - Standard Specification for Poly(Vinyl Chloride) (PVC) Pressure-Rated Pipe (SDR Series)
• Effective Date: 01-Aug-2020
• Refers: ASTM D2855-20 - Standard Practice for the Two-Step (Primer and Solvent Cement) Method of Joining Poly (Vinyl Chloride) (PVC) or Chlorinated Poly (Vinyl Chloride) (CPVC) Pipe and Piping Components with Tapered Sockets
• Effective Date: 01-Aug-2020
• Refers: ASTM F412-20 - Standard Terminology Relating to Plastic Piping Systems
• Effective Date: 01-Apr-2020
• Refers: ASTM D1784-20 - Standard Classification System and Basis for Specification for Rigid Poly(Vinyl Chloride) (PVC) Compounds and Chlorinated Poly(Vinyl Chloride) (CPVC) Compounds
• Effective Date: 15-Jan-2020
• Refers: ASTM F412-19 - Standard Terminology Relating to Plastic Piping Systems
• Effective Date: 01-Jan-2019
• Refers: ASTM D2564-12(2018) - Standard Specification for Solvent Cements for Poly(Vinyl Chloride) (PVC) Plastic Piping Systems
• Effective Date: 01-Aug-2018
• Refers: ASTM D1600-18 - Standard Terminology for Abbreviated Terms Relating to Plastics (Withdrawn 2024)
• Effective Date: 01-Jan-2018
• Refers: ASTM D2444-17 - Standard Practice for Determination of the Impact Resistance of Thermoplastic Pipe and Fittings by Means of a Tup (Falling Weight)
• Effective Date: 15-Nov-2017
• Refers: ASTM F412-17a - Standard Terminology Relating to Plastic Piping Systems
• Effective Date: 01-Aug-2017
• Refers: ASTM F412-17 - Standard Terminology Relating to Plastic Piping Systems
• Effective Date: 01-Feb-2017
• Refers: ASTM D5092/D5092M-16 - Standard Practice for Design and Installation of Groundwater Monitoring Wells
• Effective Date: 15-Nov-2016
• Refers: ASTM F412-16a - Standard Terminology Relating to Plastic Piping Systems
• Effective Date: 15-Nov-2016

Overview

ASTM F480-14(2022) is the standard specification developed by ASTM International for thermoplastic well casing pipe and couplings. This specification applies to water well casing pipes and couplings manufactured from thermoplastic materials, specifically in Standard Dimension Ratios (SDR), Schedule 40 (SCH 40), and Schedule 80 (SCH 80). The standard outlines requirements for dimensions, performance, and testing, ensuring that well casing systems used in water wells, groundwater monitoring, waste disposal, leak detection, and recovery systems meet consistent quality and safety criteria.

Key Topics

• Materials Covered: The standard addresses thermoplastic materials suitable for water well casing including ABS (acrylonitrile-butadiene-styrene), PVC (poly(vinyl chloride)), and styrene-rubber (SR) compounds.
• Product Types: Includes plain end, belled end, and threaded well casing pipes and appropriate couplings.
• Dimension and Tolerances: Defines minimum wall thickness, pipe sizes, and tolerances for SDR, SCH 40, and SCH 80 products.
• Performance Requirements:
  • Pipe stiffness and flattening tests
  • Impact resistance and tup puncture resistance
  • Thread and joint strength
  • Well screen uniformity and dimensions
• Testing Methods: Adopts ASTM and ANSI referenced testing methods to validate dimensional accuracy, material strength, and joint integrity.
• Marking and Certification: Specifies product marking, manufacturer identification, and, when relevant, compliance with potable water requirements (NSF/ANSI Standard 61).
• Safety and Regulatory Notes: Recommends users consult relevant federal, state, and local codes for thermoplastic well casing applications.

Applications

ASTM F480-14(2022) is crucial for:

• Water Wells: Providing durable, corrosion-resistant casing and coupling systems for potable water extraction and delivery.
• Groundwater Monitoring Wells: Enabling the construction of wells that require precise materials and threaded joint systems for environmental sampling, leak detection, and well performance monitoring.
• Dewatering and Recovery Systems: Ensuring the structural integrity and chemical compatibility of casing in temporary or permanent dewatering operations at construction and mining sites.
• Waste Disposal and Environmental Remediation: Supporting well casings and screens used for injection, extraction, and environmental remediation processes.
• Regulatory Compliance: Assisting engineers, well drillers, and contractors to meet local and federal standards for well construction and safe potable water delivery.

Related Standards

Complying with ASTM F480-14(2022) often involves reference to additional standards, including:

• ASTM D1784: PVC compounds used in pipe production.
• ASTM D1785: PVC plastic pipe, Schedules 40, 80, and 120.
• ASTM D5092/D5092M: Practices for design and installation of groundwater monitoring wells.
• ASTM D2444: Impact resistance testing for thermoplastic pipe and fittings.
• NSF/ANSI Standard 61: Certification for pipes and fittings in contact with drinking water.
• ANSI B1.5/B1.8/B1.9: Screw thread standards for threaded pipe joints.
• IEEE/ASTM SI 10: Use of SI units in product specifications.

Practical Value

Specifying and installing thermoplastic well casing pipe and couplings in accordance with ASTM F480-14(2022):

• Promotes long-term durability and reliability of water well systems.
• Ensures standardized quality, facilitating procurement and construction across multiple projects and jurisdictions.
• Supports environmental and drinking water safety with requirements for potable water approval, mechanical integrity, and correct product marking.
• Assists with code compliance, reducing risk of failed inspections or system failures.

By adhering to this ASTM standard, stakeholders in water resource management, environmental monitoring, and infrastructure construction benefit from the consistent performance, safety, and traceability of thermoplastic well casing materials.

Standards Content (Sample)

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:F480 −14 (Reapproved 2022) An American National Standard
Standard Specification for
Thermoplastic Well Casing Pipe and Couplings Made in
Standard Dimension Ratios (SDR), SCH 40 and SCH 80
ThisstandardisissuedunderthefixeddesignationF480;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
1.1 This specification covers water well casing pipe and
mendations issued by the World Trade Organization Technical
couplings made from thermoplastic materials in standard
Barriers to Trade (TBT) Committee.
dimension ratios (SDR), SCH 40 and SCH 80.
2. Referenced Documents
1.2 Specifications are provided for the application of these
materials to water well and ground water monitoring applica-
2.1 ASTM Standards:
tions. Flush threaded joint systems are included for screen and
D618Practice for Conditioning Plastics for Testing
casing used primarily in the construction of ground water
D638Test Method for Tensile Properties of Plastics
monitoring wells (see Practice D5092/D5092M).
D653Terminology Relating to Soil, Rock, and Contained
Fluids
1.3 Thevaluesstatedininch-poundunitsaretoberegarded
D1527 Specification for Acrylonitrile-Butadiene-Styrene
as standard. The values given in parentheses are mathematical
(ABS) Plastic Pipe, Schedules 40 and 80 (Withdrawn
conversions to SI units that are provided for information only
2013)
and are not considered standard. (See IEEE/ASTM SI 10.)
D1600TerminologyforAbbreviatedTermsRelatingtoPlas-
NOTE 1—Certain field conditions may require alternative materials to
tics
ensuresafelong-termuse.Theusershouldconsultfederal,state,andlocal
D1784Classification System and Basis for Specification for
codes governing the use of thermoplastic materials for well casing or
monitor pipe. Rigid Poly(Vinyl Chloride) (PVC) Compounds and Chlo-
NOTE 2—This standard specifies dimensional, performance and test
rinated Poly(Vinyl Chloride) (CPVC) Compounds
requirements for plumbing and fluid handling applications, but does not
D1785Specification for Poly(Vinyl Chloride) (PVC) Plastic
address venting of combustion gases.
Pipe, Schedules 40, 80, and 120
1.4 Although the pipe sizes and SDR values listed in this
D1892Specification for Styrene-Butadiene Molding and
specification are generally available, numerous other plastic
Extrusion Materials (Withdrawn 1987)
pipes in Schedule 40 and 80 wall, other SDR values and
D1898Practice for Sampling of Plastics (Withdrawn 1998)
variousoutsidediametershavebeenusedforwellcasing.Such
D2122Test Method for Determining Dimensions of Ther-
products are often selected because they fulfill certain needs
moplastic Pipe and Fittings
and AnnexA1 includes a list of these Plastic PipeWell Casing
D2235Specification for Solvent Cement for Acrylonitrile-
Specials.
Butadiene-Styrene (ABS) Plastic Pipe and Fittings
1.5 The following safety hazards caveat pertains only to the D2241 Specification for Poly(Vinyl Chloride) (PVC)
test method portion, Section 6, of this specification: This Pressure-Rated Pipe (SDR Series)
standard does not purport to address all of the safety concerns, D2282 Specification for Acrylonitrile-Butadiene-Styrene
if any, associated with its use. It is the responsibility of the user (ABS) Plastic Pipe (Withdrawn 2006)
of this standard to establish appropriate safety, health, and D2412Test Method for Determination of External Loading
environmental practices and determine the applicability of Characteristics of Plastic Pipe by Parallel-Plate Loading
regulatory limitations prior to use. D2444Practice for Determination of the Impact Resistance
1.6 This international standard was developed in accor- of Thermoplastic Pipe and Fittings by Means of a Tup
dance with internationally recognized principles on standard- (Falling Weight)
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
This specification is under the jurisdiction ofASTM Committee F17 on Plastic contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Piping Systems and is the direct responsibility of Subcommittee F17.61 on Water. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved Feb. 1, 2022. Published March 2022. Originally the ASTM website.
approved in 1976. Last previous edition approved in 2014 as F480–14. DOI: The last approved version of this historical standard is referenced on
10.1520/F0480-14R22. www.astm.org.
*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
F480−14 (2022)
D2564Specification for Solvent Cements for Poly(Vinyl 5. Materials and Manufacture
Chloride) (PVC) Plastic Piping Systems
5.1 Specification—The material described shall meet or
D2855Practice for the Two-Step (Primer and Solvent Ce-
exceed the requirements of (1) Specification D3965 for ABS
ment) Method of Joining Poly (Vinyl Chloride) (PVC) or
with a cell classification of 44322 or 33333, (2) Specification
Chlorinated Poly (Vinyl Chloride) (CPVC) Pipe and
D1784forPVCwithacellclassificationof12454or14333,or
Piping Components with Tapered Sockets
(3) Specification D1892 for SR with a cell classification of
D3122 Specification for Solvent Cements for Styrene-
4434A.Thematerialsodescribedshallbeapprovedforpotable
Rubber (SR) Plastic Pipe and Fittings
water.
D3965ClassificationSystemandBasisforSpecificationsfor
Rigid Acrylonitrile-Butadiene-Styrene (ABS) Materials NOTE 3—Caution should be exercised to control heat of hydration
duringgroutingasthermoplasticmaterialsareheatsensitive.Accelerators
for Pipe and Fittings
tend to increase the heat of hydration and are not recommended.
D5092/D5092MPractice for Design and Installation of
Groundwater Monitoring Wells
5.2 Acrylonitrile-butadiene-styrene (ABS) well casing pipe
F402 Practice for Safe Handling of Solvent Cements,
and couplings plastic shall be virgin plastic produced by the
Primers, and Cleaners Used for Joining Thermoplastic
originalcompounder(seeSpecificationD1527).Theminimum
Pipe and Fittings
butadiene content is 6%; the minimum acrylonitrile content is
F412Terminology Relating to Plastic Piping Systems
15%; the minimum styrene or substituted styrene content, or
IEEE/ASTM SI 10American National Standard for Use of
both, is 15%; and the maximum content of other monomers is
theInternationalSystemofUnits(SI):TheModernMetric
5% and lubricants, stabilizers, and colorants.
System
4 5.3 Poly(vinyl chloride) (PVC) well casing pipe and cou-
2.2 ANSI Standards:
plings plastic shall be made of virgin plastic produced by the
B1.5ACME Screw Threads
original compounder. It shall contain poly(vinyl chloride)
B1.8Stub ACME Screw Threads
homopolymer, and such additives—stabilizers, lubricants, pro-
B1.9Buttress Inch Screw Threads
cessing aids, impact improvers, and colorants—as needed to
2.3 Federal Standard:
provide the required processing and toughness characteristics
FED-STD-123Marking for Shipment (Civil Agencies)
(see Test Method D638).
2.4 Military Standard:
MIL-STD-129Marking for Shipment and Storage 5.4 The SR plastics compound shall contain at least 50%
styrene plastics, combined with rubbers to a minimum rubber
2.5 Other Standards:
content of 5%, and compounding materials such as antioxi-
Screw-Threads Standards for Federal Services 1957,Hand-
dants and lubricants, and may contain up to 15% acrylonitrile
book H28, Part III
combined in the styrene plastics or rubbers, or both. The
NSF 14Plastic Piping System Components and Related
rubbers shall be of the poly-butadiene or butadiene-styrene
Materials
type, or both, with a maximum styrene content of 25% or
NSF 61Drinking Water System Components
nitrile type, or both. The combined styrene plastics and rubber
3. Terminology
content shall be not less than 90%.
3.1 Definitions are in accordance with Terminology F412
5.5 Rework Material—Clean rework material generated
and abbreviations are in accordance with Terminology D1600,
from the manufacturer’s own well casing pipe and couplings
unless otherwise specified. The abbreviation for acrylonitrile-
production may be used by the same manufacturer, provided
butadiene-styrene plastic is ABS. The abbreviation for poly-
the well casing pipe and couplings produced meet all the
(vinyl chloride) is PVC.The abbreviation for styrene-rubber is
requirements of this specification.
SR.
5.6 Solvent Cement:
3.2 Groundwaterinvestigationtermsareinaccordancewith
5.6.1 Specification—The solvent cement shall meet the
Terminology D653.
requirements of Specification D2235 for ABS, Specification
D2564 for PVC, or Specification D3122 for SR (see Supple-
4. Classification
mentary Requirements S3).
4.1 Well casing is produced in either plain end, belled end,
or threaded, and is used for water wells, ground water
6. Requirements
monitoring, leak detection, recovery systems, dewatering
systems, and waste disposal. 6.1 Workmanship—The pipe shall be homogeneous
throughout and essentially uniform in color, opacity, density,
and other properties. The inside and outside surfaces shall be
Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
semi-matte or glossy in appearance (depending on the type of
4th Floor, New York, NY 10036, http://www.ansi.org.
plastic) and free of chalking, sticky, or tacky material. The
DLA Document Services Building 4/D 700 Robbins Avenue Philadelphia, PA
19111-5094 http://quicksearch.dla.mil/.
surfaces shall be free of excessive bloom, that is, slight bloom
U.S. Government Bookstore 710 North Capitol Street N.W. Washington, DC
is acceptable. The pipe walls shall be free of cracks, holes,
http://bookstore.gpo.gov/.
blisters, voids, foreign inclusion, or other defects that are
Available from NSF International, P.O. Box 130140, 789 N. Dixboro Rd.,Ann
Arbor, MI 48113-0140, http://www.nsf.org. visible to the naked eye and that may affect the wall integrity.
F480−14 (2022)
Machined slots or holes deliberately placed in pipe are accept- 6.3.2 Bell Socket Dimensions—The socket dimensions of
able.Bloomorchalkingmaydevelopinpipeexposedtodirect well casing pipe bell couplings shall be as shown in Table 5
rays of the sun (ultraviolet radiant energy) for extended when measured in accordance with Test Method D2122.
periods, and consequently these requirements do not apply to
6.3.3 Bell Socket Wall Thickness—The wall thickness of an
pipe after extended exposure to direct rays of the sun.
integral bell shall be considered satisfactory if formed from
6.1.1 Ground Water Investigations—Pipemanufacturedinto
pipe that meets the requirements of this specification.
products used in ground water investigations should have
6.3.4 Laying Length Dimensions—Thelayinglengthdimen-
surfaces that are visually free of oils, grease, dust, and marks
sions of well casing pipe couplings shall conform to the
imparted as a result of the manufacturing process.
requirements given in Table 3, Table 4, and Table 5 when
measured in accordance with Test Method D2122.
6.2 Well Casing Pipe:
6.3.5 Socket Concentricity or Alignment—The maximum
6.2.1 Dimensions—The outside diameter and wall thickness
misalignment of axis of couplings with the pipe measured in
of the well casing pipe shall meet the requirements given in
the plane of the coupling face shall not exceed ⁄4 in./20 ft (3
Table 1 or Table 2 when measured in accordance with Test
mm/1 m) of projected axis when measured in accordance with
Method D2122. (See Specification D2282.)
7.4.
6.2.2 Wall Thickness Eccentricity—The wall thickness ec-
centricity of the pipe shall be within 12%.
6.4 Pipe Stiffness and Flattening:
6.2.3 Length—The well casing pipe shall be in either 10ft
6.4.1 Well Casing Pipe—The well casing pipe shall have a
or 20ft (3.05m or 6.10m) lengths, unless otherwise specified.
pipe stiffness at 5% deflection equal to that shown in Table 6
Theallowabletoleranceonlengthshallbe+ ⁄2,−0in.(+13,−0
and Table 7 and shall deflect 60% of the original diameter
mm) when measured in accordance with Test Method D2122.
(flattening)withoutcracking,rupture,orothervisibleevidence
6.2.4 Flush Joint Threaded Length—If specified by the
of failure when tested in accordance withTest Method D2412.
manufacturer or purchaser, the assembled length of flush
Three specimens shall be tested and all shall pass.
threadedcasingorscreenshallbeanominallengthsuchas5ft,
NOTE 5—This test is intended for use as a quality control test, not as a
10ft, or 20ft.Any given laying length the purchaser specifies
simulated service test.
will constitute an assembled length. The allowable tolerance
1 1
shall be + ⁄2,− ⁄8 in. (+13, −3 mm) on the components of the
6.4.2 Couplings and Bells shall meet all the designated
assembled laying length. The overall length of all flush dimensional requirements of Table 3, Table 4,or Table 5.
threaded screen and casing shall be the nominal or specified
Molded couplings shall have a pipe stiffness at 5% deflection
laying length plus the length of the exposed male thread (pin). equal to that shown in Table 6 and Table 7 and shall deflect
15% without cracking, rupture, or other visible evidence of
NOTE 4—The purchaser should specify whether the length is to be the
failure when tested in accordance with Test Method D2412.
laying length or the overall length. The term “laying length” refers to the
overall length less the length required to complete the assembly. Three specimens shall be tested and all shall pass.
6.3 Well Casing Pipe Couplings:
6.5 Impact Resistance Classification—The impact resis-
6.3.1 Socket Dimensions—The socket dimensions of cou-
tance classification (IC) value for well casing pipe shall be
plings shall conform to the requirements given in Table 3 and
selected from Table 8 by the manufacturer based on the
Table 4 when measured in accordance with Test Method
measured average impact values determined in accordance
D2122.
with 7.5.
6.6 Tup Puncture Resistance—The well casing pipe and
well casing couplings shall deflect 30% (puncture resistance)
without cracking, rupture, or other visible evidence of failure
TABLE 1 Outside Diameters and Tolerance for Thermoplastic
when tested in accordance with 7.6 (Note 7). Three specimens
Well Casing Pipe, in.
shall be tested and all shall pass.
Out-of-Roundness Maximum Diameter
Outside Diameter
Minus Minimum Diameter
6.7 Threads—Well casing, screens, and couplings having
Nominal
Tolerance SDR41 SDR21
threads shall have eitherAmerican StandardACME 2G screw
Pipe Size
SCH40 and
Average on SDR32.5 SDR17
A
SCH80
threads,American Standard StubACME 2G screw threads, or
Average SDR26 SDR13.5
Buttress screw threads, Class 2, or square form flush joint
2 2.375 ±0.006 0.060 0.024 0.024
threads, in accordance with ANSI B1.5 for ACME 2G screw
2 ⁄2 2.875 ±0.007 0.060 0.030 0.030
3 3.500 ±0.008 0.060 0.030 0.030
threads, ANSI B1.8 for Stub ACME 2G screw threads, and
3 ⁄2 4.000 ±0.008 0.100 0.030 0.030
ANSIB1.9forButtressscrewthreads.Examplesofacceptable
4 4.500 ±0.009 0.100 0.030 0.030
square form flush joint thread patterns for monitoring well
5 5.563 ±0.010 0.100 0.060 0.060
6 6.625 ±0.011 0.100 0.070 0.070
construction are included in the annex.
8 8.625 ±0.015 0.150 0.090 0.090
6.7.1 All ACME, Stub ACME, and Buttress screw threads
10 10.750 ±0.015 0.150 0.100 0.100
12 12.750 ±0.015 0.150 0.120 0.120 shall be gaged in accordance with 7.7.
14 14.000 ±0.020 0.150 0.150 0.150
6.7.2 Machining flush joint square threads directly into the
15 15.300 ±0.020 0.150 0.150
wall of the pipe may cause difficulty in measuring the thread
16 16.000 ±0.020 0.150 0.150 0.150
A dimensions when the pipe is removed from the threading
Reference D1527 for ABS and D1785 for PVC.
device. The inherent out-of-round condition of the pipe will
F480−14 (2022)
A
TABLE 2 Minimum Wall Thickness for Thermoplastic Well Casing Pipe, in.
B B
SDR41 SDR32.5 SDR26 SDR21 SDR17 SDR13.5 SCH40 SCH80
Nominal Pipe
Size
Min Min Min Min Min Min Min Min
2 . . . . . . 0.113 0.140 0.176 0.154 0.218
2 ⁄2 . . . . . . 0.137 0.169 0.213 0.203 0.276
3 . . . . . . 0.167 0.206 0.259 0.216 0.300
3 ⁄2 . . . . . . 0.190 0.235 0.296 0.226 0.318
4 0.110 0.138 0.173 0.214 0.265 0.333 0.237 0.337
5 0.136 0.171 0.214 0.265 0.327 0.412 0.258 0.375
6 0.162 0.204 0.255 0.316 0.390 0.491 0.280 0.432
8 0.210 0.265 0.332 0.410 0.508 . . 0.322 0.500
10 0.262 0.331 0.413 0.511 0.632 . . 0.365 0.593
12 0.311 0.392 0.490 0.606 0.750 . . 0.406 0.687
14 0.342 0.430 0.539 0.667 . . . . 0.437 0.750
15 0.373 0.471 . . . . . . . . . . . .
16 0.390 0.493 0.616 0.762 . . . . 0.500 0.843
A
The minimum is the lowest wall thickness of the well casing pipe at any cross section.
B
Reference: D1527 for SCH40 and 80 ABS
D1785 for SCH40 and 80 PVC
D2241 for SDR PVC
cause the thread dimensions to conform to the irregularities of 50% 6 10% relative humidity for not less than 40 h in
the pipe. Measurements must be taken at many points and accordance with ProcedureAof Practice D618. The manufac-
averaged. Alternatively gages of metal or other rigid material turer may use shorter conditioning time, but in case of
may be used when gage dimensions or methods are available. disagreement Procedure A of Practice D618 shall be used.
6.7.3 Thread Out-of-Roundness—Out of roundness for
7.3 Test Conditions—Conduct tests in the standard labora-
threaded dimensions on Schedule 40 and Schedule 80 threads,
tory atmosphere 73.4°F 6 3.6°F (23°C 6 2°C) and 50 6
describedintheannexmustconformtothe“Out-of-Roundness
5% relative humidity, unless otherwise specified in the test
MaximumDiameterMinusMinimumDiameter”figuresfound
methods or in this specification.
in Table 1.
6.7.4 Thread Eccentricity—The wall thickness eccentricity
7.4 Socket Concentricity or Alignment (see Practice
as well as the flush joint threads found in the annex shall be D2855)—Selectthreebellsocketcouplingswithsufficientpipe
within 12%.
so that concentricity and alignment tests for bell socket
couplings may be made. Select three well casing pipe
NOTE 6—Ground water monitoring wells are usually constructed with
specimens, each specimen 12in. 6 ⁄8 in. (300mm 6 3 mm)
flush joints to prevent bridging of materials placed in the well annulus
during well installation. Interior surfaces are a flush finish to prevent in length. Cut the ends square, free of burrs and jagged edges.
equipment from becoming lodged at points where the inside diameter
Solvent cement the bell socket coupling and well casing pipe
might constrict. Externally coupled pipe may be used, but the special
together following recommended procedures. Center the cou-
needs of wells constructed for ground water monitoring, for example, no
pling onto a test mandrel that has been accurately centered on
gravel or grout bridging, hollow stem auger inside diameter, solvent-free
a lathe or lathe-type spindle. While the assembly is being
couplings, should be addressed.
rotated, eccentricity in the plane of the bell socket coupling
6.8 Threaded Joints—Threaded joints including flush
face may be determined by means of a dial gage bearing
threaded joints made with well casing pipe and well casing
radially against the bell socket coupling. The extent of the
couplings shall not leak. For ACME, Stub ACME, Buttress
angular misalignment may be determined by means of a dial
thread, and Flush Thread joints the test shall be an internal
gage bearing radially against the well casing pipe approxi-
pressure of 25 psi (170 kPa) for1hin accordance with 7.8.
mately1ft(0.30m)fromthebellsocketcouplingfaceoradial
6.9 Joint Strength—Joint tensile strength requirements will
gage parallel to the axis against the bell socket coupling face.
be added when test method and test results are available.
Othertestmethodsmaybeusedwhenagreeduponbetweenthe
purchaser and the seller.
6.10 Well Screens—Screens manufactured from pipe or
casing shall have uniform slots placed perpendicular to the
7.5 Impact Classification (see Test Methods D2444)—
long axis of the pipe. Slot width, length, interslot spacing,
Determine the impact classification in accordance with Test
number of rows around the screen circumference and overall
Method D2444, using Tup B weighing 30 lb and Holder B.
screen length shall comprise the product specification.
Select ten well casing pipe specimens of each size with each
specimen6in. 6 ⁄8in.(150mm 63mm)inlength.Condition
7. Test Methods
the test specimens in a low-temperature environmental cham-
7.1 Sampling—A sample of the well casing pipe and cou-
ber maintaining a test temperature of 32°F to 35.6°F (0.0°C
pling sufficient to determine conformance with this specifica-
to 2.0°C) a minimum of2horina mixture of ice and water at
tion shall be taken at random from each lot in accordance with
32°F to 35.6°F for 1 h before testing and test immediately on
Section 9 of Practice D1898.
removal. Test ten specimens in accordance with Test Method
7.2 Conditioning—Unlessotherwisespecified,conditionthe D2444;nineofthetenspecimensshallbeabovethelowerlimit
specimens prior to test at 72.4°F 6 3.6°F (23°C 6 2°C) and of the IC cell. Examine the results for conformance with 6.5.
F480−14 (2022)
TABLE 3 Thermoplastic Water Well Casing Pipe Couplings Socket Dimensions and Laying Length Dimensions, in. (see Specification
D2672)
NOTE 1—See 6.7 for thread dimensions other than ACME 2G screw threads.
1 1
S2 2 ⁄2 33 ⁄2 4 5 6 8 10 12
A 2.386 2.887 3.514 4.015 4.517 5.584 6.648 8.649 10.796 12.778
A ±0.006 ±0.007 ±0.008 ±0.008 ±0.009 ±0.010 ±0.011 ±0.015 ±0.015 ±0.015
B 2.370 2.869 3.493 3.992 4.491 5.553 6.614 8.613 12.737 12.736
B ±0.006 ±0.007 ±0.008 ±0.008 ±0.009 ±0.010 ±0.011 ±0.015 ±0.015 ±0.015
C 1.500 1.750 2.000 2.250 2.500 3.000 3.500 4.500 5.000 6.000
C 1.000 1.250 1.500 1.750 2.000 2.500 3.000 4.000 4.500 5.500
ID 2.149 2.601 3.166 3.620 4.072 5.033 5.993 7.805 9.728 11.538
T 0.113 0.137 0.167 0.190 0.214 0.265 0.316 0.410 0.511 0.606
T +0.020 +0.020 +0.020 +0.023 +0.026 +0.032 +0.038 +0.049 +0.061 +0.073
h 0.083 0.100 0.100 0.125 0.125 0.166 0.200 0.250 0.333 0.375
M 2.465 2.982 3.606 4.131 4.630 5.735 6.830 8.878 11.086 13.127
m 2.289 2.772 3.396 3.871 4.370 5.393 6.420 8.368 10.410 12.367
L 1.500 1.750 2.000 2.250 2.500 3.000 3.500 4.500 5.000 6.000
OD 2.612 3.161 3.848 4.395 4.945 6.114 7.280 9.469 11.818 13.900
S = nominal pipe size
A = socket entrance diameter
A = tolerance on diameter
B = socket bottom diameter
B = tolerance on diameter
C = socket depth
C = thread length
ID = bore diameter
T = minimum wall thickness
T = tolerance on wall thickness
h = thread height—for ACME 2G screw thread (Note)
M = major diameter of internal thread—for ACME 2G screw thread (Note)
m = minor diameter of external thread—for ACME 2G screw thread (Note)
L = lay length
OD = outside diameter at entry of hub
7.6 Tup Puncture Resistance Test: D2444.The test method uses a constant-load rate instead of an
7.6.1 Procedure—Select three pipe specimens and three impact load. The Vee-block base has been enlarged to accom-
couplings. Determine whether the specimens are resistant to modatelargerspecimensasseeninFig.1.Machinethebaseso
tuppunctureat30%deflectionbyusingtheapparatusrequired that the two sides of the Vee form an angle of 90° 6 0.01°.
for Test Method D2412 and Tup A as defined in Test Method Mount TupAof Test Method D2444 on a square steel plate as
F480−14 (2022)
TABLE 4 Metric Equivalents for Table 3,mm
1 1 1
S2 2 ⁄2 33 ⁄2 4 5 6 8 10 12 ⁄2
A 60.60 73.32 89.26 101.98 114.74 141.84 168.86 219.68 273.71 324.56
A ±0.16 ±0.18 ±0.20 ±0.20 ±0.22 ±0.26 ±0.28 ±0.38 ±0.38 ±0.38
B 60.20 72.88 88.72 101.40 114.08 141.04 168.00 218.78 272.72 323.50
B ±0.16 ±0.18 ±0.20 ±0.20 ±0.22 ±0.26 ±0.28 ±0.38 ±0.38 ±0.38
C 38 44 51 57 64 76 89 114 127 152
C 25 32 38 44 51 64 76 102 114 140
ID 54.58 66.06 80.42 91.94 103.42 127.84 152.22 198.24 247.10 293.06
T 2.88 3.48 4.24 4.82 5.44 6.74 8.02 10.42 12.98 15.40
T +0.50 +0.50 +0.50 +0.58 +0.66 +0.82 +0.96 +1.24 +1.54 +1.86
h 2.10 2.54 2.54 3.18 3.18 4.22 5.08 6.34 8.46 9.52
M 62.62 75.74 91.60 104.92 117.60 145.66 173.48 225.50 281.58 333.42
m 58.14 70.40 86.26 98.32 111.00 136.98 163.06 212.54 264.40 314.12
L 38 44 51 57 64 76 89 114 127 152
OD 66.34 80.28 97.74 111.64 125.60 155.30 184.92 240.52 300.18 355.34
A
TABLE 5 Tapered Sockets for Bell-End Pipe, in.
A Socket Entrance Diameter B Socket Bottom Diameter
C Socket Length,
Nominal Pipe Size
Tolerance on Max Out-of- Tolerance on Max Out-of-
min
Diameter Diameter
Diameter Round Diameter Round
2 2.386 ±0.006 ±0.012 2.363 ±0.006 ±0.012 3.000
2 ⁄2 2.887 ±0.007 ±0.015 2.861 ±0.007 ±0.015 3.500
3 3.514 ±0.008 ±0.015 3.484 ±0.008 ±0.015 4.000
3 ⁄2 4.015 ±0.008 ±0.015 3.984 ±0.008 ±0.015 4.500
4 4.517 ±0.009 ±0.015 4.482 ±0.009 ±0.015 5.000
4 ⁄2 4.968 ±0.009 ±0.030 4.932 ±0.009 ±0.030 5.500
5 5.584 ±0.010 ±0.030 5.543 ±0.010 ±0.030 6.000
6 6.648 ±0.011 ±0.030 6.603 ±0.011 ±0.030 6.500
6 ⁄4 6.922 ±0.011 ±0.030 6.878 ±0.011 ±0.030 7.000
8 8.649 ±0.015 ±0.045 8.598 ±0.015 ±0.045 7.000
10 10.776 ±0.015 ±0.050 10.722 ±0.015 ±0.050 7.500
12 12.778 ±0.015 ±0.060 12.721 ±0.015 ±0.060 8.000
14 14.035 ±0.015 ±0.060 13.970 ±0.015 ±0.060 8.000
16 16.045 ±0.015 ±0.060 15.970 ±0.015 ±0.060 8.000
A
Minimum dimensions have zero negative tolerance. The sketches and designs of fittings are illustrative only.
TABLE 6 Minimum Pipe Stiffness at 5% Deflection, lbf/(in.·in.) (kN/(m·m))
NOTE 1—The PS values are computed on the basis of minimum pipe wall thickness with the following material moduli: SR, 300000 psi (2.07 GPa);
ABS, 250000 psi and 350000 psi (1.72 GPa to 2.41 GPa); and PVC, 400000 psi (2.76 GPa).
SDR 13.5 SDR 17 SDR 21 SDR 26 SDR 32.5 SDR 41
SR 684 (4720) 339 (2340) 168 (1160) 84 (580) . . . . . .
ABS 250 000 570 (3935) 273 (1942) 140 (964) 70 (485) . . . . . .
ABS 350 000 798 (5510) 395 (2720) 196 (1350) 98 (677) . . . . . .
PVC 912 (6290) 452 (3120) 224 (1550) 112 (774) 56 28
shown in Fig. 2. Attach two Federal D01S dial gages to the versus load can be measured. The speed of testing shall be
square steel plate 180° apart as seen in Fig. 3 and Fig. 4. 0.5in. 6 0.02 in. (12.5mm 6 0.5 mm)/min. Continue the test
Measure the specimens to determine the point of minimum until the diameter is deflected 30% of its original diameter
wall thickness. Place the pipe or coupling specimen of 6in. 6 (puncture resistance). Examine the test results for each speci-
⁄8 in. (150mm 6 3 mm) in length in the universal load men of pipe and coupling for conformance to Section 6.
machine with the minimum wall of the specimen positioned
NOTE 7—The tup puncture test for point load is derived from Test
directly under the nose of the tup. Place spacers between the
Methods D2412 and D2444, combined to achieve a meaningful design
dial gage stems and the base so that the deflection of the tup parameter for well casing pipe used in water well construction. There are
F480−14 (2022)
2 A
TABLE 7 Minimum Pipe Stiffness for SCH 40 and SCH 80 Well Casing Pipe, PSi (kN/(m ))
SCH40 SCH80 SCH40 SCH80 SCH40 SCH80
Nominal Pipe Size, in.
ABS 250 000 ABS 250 000 ABS 350 000 ABS 350 000 PVC PVC
2 373 (2571) 1155 (7963) 543 (3743) 1680 (11582) 600 (4136) 1920 (13236)
2 ⁄2 490 (3378) 1340 (9238) 630 (4343) 1960 (13512) 800 (5515) 2240 (15443)
3 318 (2192) 921 (6349) 464 (3199) 1330 (9169) 510 (3516) 1520 (10479)
3 ⁄2 240 (1655) 720 (4964) 350 (2413) 1033 (7122) 400 (2758) 1180 (8135)
4 192 (1324) 593 (4088) 284 (1958) 823 (5674) 310 (2137) 940 (6480)
5 128 (882) 422 (2909) 182 (1255) 613 (4226) 208 (1434) 702 (4840)
6 96 (662) 329 (2268) 137 (944) 553 (3812) 150 (1034) 632 (4357)
8 65 (448) 260 (1792) 91 (627) 378 (2606) 100 (689) 432 (2978)
10 48 (331) 222 (1530) 68 (469) 326 (2247) 78 (538) 372 (2565)
12 49 (338) 206 (1420) 58 (400) 301 (2075) 63 (434) 344 (2372)
14 . . . . . . . . . . . . 59 (407) 336 (2316)
16 . . . . . . . . . . . . 59 (407) 324 (2234)
A
Reference D1527 for ABS and D1785 for PVC.
TABLE 8 Impact Classification (IC) Cell Classification (see Test Methods D2444)
Nominal Pipe Size, in. IC-0 IC-1, m·kg(ft·lb) IC-2, m·kg(ft·lb) IC-3, min, m·kg(ft·lb)
A
2Ns 9.7–12.4(70–90) 12.4–15.2(90–110) >15.2(110)
2 ⁄2 Ns 11.0–13.8(80–100) 13.8–18.0(100–130) >18.0(130)
3 Ns 16.6–19.4(120–140) 19.4–24.9(140–180) >24.9(180)
3 ⁄2 Ns 18.0–22.1(130–160) 22.1–27.7(160–200) >27.7(200)
4 Ns 22.1–27.7(160–200) 27.7–33.2(200–240) >33.2(240)
5 Ns 24.9–30.4(180–220) 30.4–36.0(220–260) >36.0(260)
6 Ns 27.7–36.0(200–260) 36.0–41.5(260–300) >41.5(300)
8 Ns 36.0–41.5(260–300) >41.5(300) >41.5(300)
10 Ns >41.5(300) >41.5(300) >41.5(300)
12, 14, 16 Ns >41.5(300) >41.5(300) >41.5(300)
A
Ns—Not specified.
many possibilities for a point load to be exerted on the well casing pipe.
7.8 Threaded Joints—Assemble two specimens of well
Perhaps the most significant of these is the stringing of a well casing pipe 1
casing pipe, 6in. 6 ⁄8 in. (150mm 6 3 mm), together with a
through a boulder field. The sides of the well hole are seldom smooth
maleandfemaletwo-piecethreadedwellcasingpipecoupling.
surfaces, but rather pieces of rock are embedded in the surrounding soil
Solvent cement the male and female well casing pipe coupling
layers. When these rock particles come in contact with the well casing
to each specimen of well casing pipe and allow to stand for 24
pipe, a point loading situation can develop. Natural earth movements can
impose high stresses over a small area of well casing pipe surface. This
h at room temperature. Apply an approved thread lubricant,
typeoflocalizedloadisanentirelydifferentsituationfromauniformload.
specifically intended for use with the designated plastic
7.7 Threads—Gage the threads using gages specified in
material, to the threads of the male and female two-piece well
accordance with recommended gages and gaging practice for casingpipecouplingandassemble.Subjectthespecimentoan
external and internal threads as specified in the following
internal pressure of 25 psi (170 kPa) with water as a medium,
standards: for1h.Shouldthethreadsbeanintegralpartofthecasing,the
ANSI B1.5 1973 assembling of the coupling to the pipe shall be omitted.
ANSI B1.8 1973
Examine the well casing pipe coupling joint for leakage to
ANSI B1.9 1973 determine conformance to the requirements of 6.8.
(Not Flush Threaded)
7.8.1 Flush Threaded Joints—Assemble the specimens of
Screw-Threads, Standards for Federal Service 1957 Part III, well casing, one threaded female and one threaded male with
Handbook H28
an “O” ring. No adhesives, solvents, or sealants may be used.
7.7.1 Machining flush joint threads directly into the wall of Water only may be used, if necessary, to ensure a smooth
the pipe may cause difficulty in measuring the thread dimen-
closure. The joint should then be torqued to the maximum
sionswhenthepipeisremovedfromthethreadingdevice.The value to be specified for that joint pattern. Allow the joint to
inherent out-of-round condition of the pipe will cause the
standfor24hatroomtemperature.Subjectthespecimentoan
thread dimensions to conform to the irregularities of the pipe. internal pressure of 25 psi (170 kPa) with water as a medium,
Measurements must be taken at many points and averaged.
for 1 h. Examine the well casing pipe joint for leakage to
Alternatively gages of metal or other rigid material may be determine conformance to the requirements of 6.8.
used when gage dimensions or methods are available. Gages
8. Retest and Rejection
should be polished and free of all lubricants when used. The
male gage should be fitted with an“ O” ring of the same 8.1 If the results of any test(s) do not meet the requirements
material, durometer, and dimensions as that specified for the of this specification, the test(s) may be conducted again in
manufactured product. accordance with an agreement between the purchaser and the
F480−14 (2022)
FIG. 1V-Block Support (No Scale)
Configuration of Tup A Impact Resistance of Thermoplastic Pipe (Test Method D2444)
FIG. 2Tup Test Apparatus (No Scale)
seller. In retesting, the product requirements of this specifica- 9. Product Marking
tion shall be met, and the test methods designated in the
9.1 Quality of Product Marking—Theproductmarkingshall
specification shall be followed. If, upon retest, failure occurs,
be applied to the pipe in such a manner that it remains legible
thequantityofproductrepresentedbythetest(s)doesnotmeet
(easily read) after installation and inspection.
the requirements of this specification.
F480−14 (2022)
FIG. 3Tup Test Apparatus
FIG. 4Example of Specimen During Tup Test
9.2 Content of Product Marking: 9.2.1.2 Well casing pipe standard dimension ratio, in accor-
9.2.1 Well Casing Pipe—The well casing pipe shall be dance with designation code given in 3.2 (for example, SDR
marked at least every 5 ft (1.5 m) in letters not less than ⁄16 in. 17),
(5 mm) high in a contrasting color with the following infor- 9.2.1.3 Type of plastic well casing pipe material (for
mation: example, ABS250, ABS350, PVC, or SR),
9.2.1.1 Nominal well casing pipe size (for example, 2 in. 9.2.1.4 The wording—well casing—followed by the impact
(50 mm)), classification (for example, IC-3),
F480−14 (2022)
9.2.1.5 Designation ASTM F480, with which the well 9.3.2 Typeofplasticwellcasingpipecouplingmaterial(for
casing pipe complies, example, ABS250, ABS350, PVC, or SR),
9.2.1.6 Manufacturer’s name (or trademark), and 9.3.3 ASTM Designation F480, with which the well casing
9.2.1.7 Manufacturer’s code for resin manufacture, lot pipe coupling complies, and
number, and date of manufacture. 9.3.4 Manufacturer’s name (or trademark).
9.2.1.8 Well casing pipe intended for potable water shall 9.3.5 Well casing pipe couplings intended for potable water
also include the seal or mark of the laboratory making the shallalsoincludethesealormarkofthelaboratorymakingthe
evaluation for this purpose spaced at intervals specified by the evaluation for this purpose spaced at intervals specified by the
laboratory (see Supplementary Requirements S3). laboratory (see Supplementary Requirements S3).
9.2.1.9 Well casing pipe intended for manufacture into
10. Quality Assurance
screen or casing for ground water monitoring use shall not be
marked with any foreign material, for example, ink, unless it
10.1 When the product is marked with this designation,
canbeindependentlyproventhatthemarkingmaterialwillnot
F480, the manufacturer affirms that the product was
contaminate the ground water sample or affect the subsequent
manufactured, inspected, sampled, and tested in accordance
analysis of the water sample for pollutants.
with this specification and has been found to meet the
requirements of this specification.
9.3 Well Casing Pipe Coupling—Wellcasingpipecouplings
shallbemarkedinlettersnotlessthan ⁄16in.(5mm)high,with
11. Keywords
the following information:
9.3.1 Nominal well casing pipe coupling size (for example, 11.1 couplings; flush thread; ground water; poly(vinyl chlo-
2 in.), ride); PVC; thermoplastic; well-casing; well screen
SUPPLEMENTARY REQUIREMENTS
GOVERNMENT ⁄ MILITARY PROCUREMENT
These requirements apply only to Federal ⁄Military procurement, not domestic sales or transfers.
S1. Responsibility for Inspection—Unless otherwise speci- S2. Packaging and Marking for U.S. Government Procure-
fied in the contract or purchase order, the producer is respon- ment:
sible for the performance of all inspection and test require-
S2.1 Packaging—Unless otherwise specified in the
ments specified herein. The producer may use his own or any
contract, the materials shall be packaged in accordance with
other suitable facilities for the performance of the inspection
the supplier’s standard practice in a manner ensuring arrival at
and test requirements specified herein, unless the purchaser
destination in satisfactory condition and which will be accept-
disapproves.The purchaser shall have the right to perform any
able to the carrier at lowest rates. Containers and packing shall
of the inspections and tests set forth in this specification where comply with Uniform Freight Classification rules or National
such inspections are deemed necessary to ensure that material Motor Freight Classification rules.
conforms to prescribed requirements.
S2.2 Marking—Marking for shipment shall be in accor-
NOTE S1.1—In U.S. Federal contracts, the contractor is responsible for
dancewithFed.Std.No.123forcivilagenciesandMIL-STD-
inspection.
129 for military agencies.
NOTE S2.1— The inclusion of U.S. Government procurement require-
ments should not be construed as an indication that the U.S. Government
uses or endorses the products described in this specification.
POTABLE WATER REQUIREMENT
This requirement applies whenever a Regulatory Authority or user calls for product to be used to convey or to be in contact with
potable water.
S3. Products intended for contact with potable water shall StandardNo.14byanacceptablecertifyingorganizationwhen
be evaluated, tested and certified for conformance withANSI/
required by the regulatory authority having jurisdiction.
NSF Standard No. 61 or the health effects portion of NSF
F480−14 (2022)
ANNEXES
(Mandatory Information)
A1. PLASTIC PIPE WELL CASING SPECIALS
A1.1 Tofilltheneedsofthewaterwellindustry,plasticpipe that they meet the quality requirements in this specification by
having a variety of sizes and wall thicknesses have been used
using the minimum Pipe Stiffness (PS) values in these tables
as well casing over the past 20 years. Some of these casings and the other quality control tests in the specification.
were standard products, for example, Schedule 40 and 80 Iron
A1.2 Other special sizes are allowed within this
Pipe Size (IPS) OD pipe and Plastic Irrigation Pipe (PIP) OD
specification,howeverthematerialmustmeettherequirements
SDR pipe. Other products were made to special outside
of 5. The pipe, couplings, bell-ends, or combination thereof,
diameters and wall thicknesses expressly to fill the needs of
shall comply with the manufacturer’s dimensional specifica-
various well drillers. Because the tables in this specification
include only IPS-OD SDR pipe and because many of these tions and shall meet the calculated minimum pipe stiffness for
the design/material used. For those sizes designated with an
other products have a long service history and fulfill special
needs, this listing of Well Casing specials is offered in Table impact class, the product shall meet the requirements for the
A1.1andTableA1.2.Thesewellcasingscanbetestedtoverify nearest sized product/material given in this specification.
TABLE A1.1 PVC Well Casing Specials Referencing Specifications, in.
SDR 41 SDR 32.5
Reference Standard Nominal Size Outside Diameter
Minimum Wall Minimum PS Minimum Wall Minimum PS
ASAE 6 6.140 0.150 28 0.189 56
S376 8 8.160 0.199 28 0.251 56
and 10 10.200 0.249 28 0.314 56
SCS 12 12.240 0.299 28 0.377 56
430-DD 15 15.300 0.373 28 0.471 56
Impact Class, m·kg (ft·lb)
Maxi-
Tolerance
mum
Nominal Outside on Out- Minimum Minimum Schedu-
A A
Out-of- SDR DR IC-1 IC-2 IC-3
A
Size Diameter side Di- Wall PS le
Round-
ameter
ness
B
Miscella 4 ⁄2 4.950 ±0.010 0.100 0.190 112 26 . . . . . . 23.5–29.0 (170–210) 29.1–34.6 (211–250) >34.6 (>250)
neous
B
. . . 4.950 ±0.010 0.045 0.236 224 21 . . . . . . 23.5–29.0 (170–210) 29.1–34.6 (211–250) >34.6 (>250)
B
. . . 4.950 ±0.010 0.045 0.248 268 . . . . . . 40 23.5–29.0 (170–210) 29.1–34.6 (211–250) >34.6 (>250)
B
. . . 4.950 ±0.010 0.045 0.291 452 17 . . . . . . 23.5–29.0 (170–210) 29.1–34.6 (211–250) >34.6 (>250)
B
5 5.563 ±0.010 0.100 0.190 78 . . . 29 . . . 24.9–30.4 (180–220) 30.4–36.0 (220–260) >36.0 (>260)
B
6 6.625 ±0.011 0.100 0.190 60 . . . 35 . . . 27.7–36.0 (200–260) 36.0–41.5 (260–300) >41.5 (>300)
B
6 ⁄4 6.900 ±0.011 0.100 0.250 95 . . . 27.6 . . . 28.8–36.6 (208–265) 36.6–41.5 (265–300) >41.5 (>300)
B
. . . 6.900 ±0.011 0.075 0.329 224 21 . . . . . . 28.8–36.6 (208–265) 36.6–41.5 (265–300) >41.5 (>300)
B
. . . 6.900 ±0.011 0.075 0.406 452 17 . . . . . . 28.8–36.6 (208–265) 36.6–41.5 (265–300) >41.5 (>300)
B
7 7.000 ±0.013 0.080 0.300 164 . . . 23 . . . 31.4–39.3 (227–284) 39.6–41.5 (268–300) >41.5 (>300)
C
15 15.300 ±0.020 0.150 0.410 38 . . . 37 . . . NA NA NA
16 16.000 ±0.020 0.150 0.429 38 . . . 37 . . . NA NA NA
A
Dimension ratios meeting the definition given in 6.2.1 are designated SDR, others as DR or Schedule 40.
B
The test value for confirming this IC shall be at least 0.1 mg·kg (1 ft·lb) greater than the value indicated.
C
Not applicable.
F480−14 (2022)
TABLE A1.2 SR Well Casing Specials, in.
Nominal Size Outside Diameter Minimum Wall Minimum PS
4 4.500 0.175 87
4.500 0.200 138
4.500 0.250 285
4 ⁄2 4.886 0.200 105
4.886 0.230 165
5 5.300 0.175 53
5.300 0.200 79
5.300 0.250 162
5.300 0.320 366
5 ⁄2 5.563 0.225 99
6 6.275 0.175 32
6.275 0.200 47
6.275 0.250 96
6.275 0.320 216
6 ⁄8 6.625 0.250 80
6.625 0.320 177
7 7.000 0.250 68
8 ⁄8 8.625 0.250 36
A2. FLUSH THREAD DESIGN DATA FOR GROUND WATER MONITORING CASING AND SCREEN
A2.1 Rationale—The publication of the major revision of A2.1.3 A new standard is being written to specifically
this specification in 1988 resulted in approaches to the respon- address the needs of the ground water monitoring industry for
sibleSubcommitteeF17.61,frommanufacturersofwellscreen
the application of thermoplastic well casing pipe. This new
and casing used primarily for ground water monitoring. The
standard will define design and testing criteria in performance
resulting task group has proposed several changes to the
terms for the application of thermoplastic well casing pipe in
specification that address the needs of the ground water
ground water monitoring.
monitoringwellconstructionindustry.Theneedsoftheground
water monitoring industry were surveyed through Subcommit- A2.2 Tables A2.1-A2.12 provide basic dimensional infor-
tee D18.21. This survey concluded that there was need for mationforflushthreadforms,(singleentrywith“O”ring).The
alternate thread patterns and more extensive testing than was
performance of these designs will equal or better that specified
originally included in F480–88. The basic specification is
in Section 6 of this specification. Pipe sizes larger than 12 in.
modified to more closely reflect the needs of the industry
have been eliminated from the tables as they are not used for
defined by the task group and the industry survey as follows:
ground water monitoring wells. Tolerances are included and
data in SI units are added.
A2.1.1 Bias,bytheprovisionofasingleflushthreaddesign,
is removed.
A2.1.2 All flush thread design data is now included in the
annex (Fig. A2.1).
FIG. A2.1Square Flush Thread Design
F480−14 (2022)
A
TABLE A2.1 Flush Thread Design Data (Nominal 2 Threads/in.) (continued in Table A2.2)
NOTE 1— For TablesA2.1-A2.4, designs incorporating alternate “O” rings and compensating dimensional changes are currently available as follows,
tolerances as in the main tables:
ALTERNATE “O” RING FLUSH THREAD DESIGN DATA (Nominal 2 threads/in.)
Schedule Size “O” Ring “F” “O” Ring I “O” Number
40 4 0.075 4.207 045
40 4 ⁄2 0.075 4.467 047
40 5 0.075 5.248 049
40 6 0.075 6.302 050
80 4 0.075 4.133 045
80 5 0.075 5.073 047
80 6 0.075 6.155 050
Thread Pin Pin Box Box
Size Toler- Toler- Toler- Toler- Toler- Thread Toler- Thread Toler-
TPI Groove Major Minor Major Minor
S40 ance ance ance ance ance “A” ance “B” ance
Width“ T” Diameter Diameter Diameter Diameter
2 2 0.255 ±0.003 2.239 ±0.003 2.155 ±0.003 2.249 ±0.003 2.165 ±0.003 1.500 ±0.003 1.535 ±0.003
2 ⁄2 2 0.255 ±0.003 2.729 ±0.003 2.645 ±0.003 2.739 ±0.003 2.655 ±0.003 2.375 ±0.003 2.415 ±0.003
3 2 0.255 ±0.003 3.320 ±0.003 3.236 ±0.003 3.330 ±0.003 3.246 ±0.003 2.375 ±0.003 2.420 ±0.003
4 2 0.255 ±0.003 4.300 ±0.003 4.216 ±0.003 4.310 ±0.003 4.226 ±0.003 2.500 ±0.003 2.555 ±0.003
4 ⁄2 2 0.255 ±0.003 4.739
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