ASTM F512-19(2024)

Standard Specification for Smooth-Wall Poly(Vinyl Chloride) (PVC) Conduit and Fittings for Underground Installation

ABSTRACT
This specification covers the dimensional, design, and performance requirements for five types (Types EB-20, EB-35, DB-60, DB-100, and DB-120) of smooth-wall poly(vinyl chloride) (PVC) conduits and fittings for underground communication and electrical power wires and cables. Conduits and fittings shall be evaluated on impact resistance and strength, joint tightness, pipe stiffness, and extrusion quality.
SCOPE
1.1 This specification covers the requirements for single wall and coextruded cellular core smooth-wall poly(vinyl chloride) conduit and fittings for underground communication and electrical power wire and cables. Plastics which does not meet the material requirements specified in Section 5 is excluded from single layer and all coextruded layers.  
1.2 The values given in parentheses are for information only.  
1.3 The following safety hazards caveat pertains only to the test method portion, Section 8, 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.  
1.4 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: 14-Jan-2024
• ICS: 23.040.20 - Plastics pipes
• ICS: 23.040.45 - Plastics fittings
• Technical Committee: F17 - Plastic Piping Systems
• Drafting Committee: F17.25 - Vinyl Based Pipe

Relations

• Replaces: ASTM F512-19 - Standard Specification for Smooth-Wall Poly(Vinyl Chloride) (PVC) Conduit and Fittings for Underground Installation
• Effective Date: 15-Jan-2024
• Referred By: ASTM F891-23 - Standard Specification for Coextruded Poly(Vinyl Chloride) (PVC) Plastic Pipe With a Cellular Core
• Effective Date: 15-Jan-2024
• Referred By: ASTM D2672-20e1 - Standard Specification for Joints for IPS PVC Pipe Using Solvent Cement
• Effective Date: 15-Jan-2024
• Referred By: ASTM F1760-16(2020) - Standard Specification for Coextruded Poly(Vinyl Chloride) (PVC) Non-Pressure Plastic Pipe Having Reprocessed-Recycled Content
• Effective Date: 15-Jan-2024
• Referred By: ASTM F1365-91(2023) - Standard Test Method for Water Infiltration Resistance of Plastic Underground Conduit Joints Which Use Flexible Elastomeric Seals
• Effective Date: 15-Jan-2024
• Referred By: ASTM F1488-14(2019) - Standard Specification for Coextruded Composite Pipe
• Effective Date: 15-Jan-2024
• Referred By: 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: 15-Jan-2024

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: F512 − 19 (Reapproved 2024) An American National Standard
Standard Specification for
Smooth-Wall Poly(Vinyl Chloride) (PVC) Conduit and
Fittings for Underground Installation
This standard is issued under the fixed designation F512; the number immediately following the designation indicates the year of original
adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* D2122 Test Method for Determining Dimensions of Ther-
moplastic Pipe and Fittings
1.1 This specification covers the requirements for single
D2152 Test Method for Adequacy of Fusion of Extruded
wall and coextruded cellular core smooth-wall poly(vinyl
Poly(Vinyl Chloride) (PVC) Pipe and Molded Fittings by
chloride) conduit and fittings for underground communication
Acetone Immersion
and electrical power wire and cables. Plastics which does not
D2412 Test Method for Determination of External Loading
meet the material requirements specified in Section 5 is
Characteristics of Plastic Pipe by Parallel-Plate Loading
excluded from single layer and all coextruded layers.
D2444 Practice for Determination of the Impact Resistance
1.2 The values given in parentheses are for information
of Thermoplastic Pipe and Fittings by Means of a Tup
only.
(Falling Weight)
1.3 The following safety hazards caveat pertains only to the
D2564 Specification for Solvent Cements for Poly(Vinyl
test method portion, Section 8, of this specification: This Chloride) (PVC) Plastic Piping Systems
standard does not purport to address all of the safety concerns,
D2855 Practice for the Two-Step (Primer and Solvent Ce-
if any, associated with its use. It is the responsibility of the user ment) Method of Joining Poly (Vinyl Chloride) (PVC) or
of this standard to establish appropriate safety, health, and
Chlorinated Poly (Vinyl Chloride) (CPVC) Pipe and
environmental practices and determine the applicability of Piping Components with Tapered Sockets
regulatory limitations prior to use.
F412 Terminology Relating to Plastic Piping Systems
1.4 This international standard was developed in accor-
dance with internationally recognized principles on standard-
3. Terminology
ization established in the Decision on Principles for the
3.1 Definitions are in accordance with Terminology F412
Development of International Standards, Guides and Recom-
and abbreviations are in accordance with Terminology D1600,
mendations issued by the World Trade Organization Technical
unless otherwise specified. The abbreviation for poly(vinyl
Barriers to Trade (TBT) Committee.
chloride) is PVC.
2. Referenced Documents
3.2 Definitions of Terms Specific to This Standard:
3.2.1 cellular plastic—a plastic containing numerous cells,
2.1 ASTM Standards:
intentionally introduced, interconnecting or not, distributed
D618 Practice for Conditioning Plastics for Testing
throughout the mass.
D1600 Terminology for Abbreviated Terms Relating to Plas-
tics (Withdrawn 2024)
3.2.2 coextruded pipe—pipe consisting of two or more
D1784 Classification System and Basis for Specification for
concentric layers of material bonded together in processing by
Rigid Poly(Vinyl Chloride) (PVC) Compounds and Chlo-
any combination of temperature, pressure, grafting, cross-
rinated Poly(Vinyl Chloride) (CPVC) Compounds
linking or adhesion.
3.2.3 coextrusion—a process whereby two or more heated
This specification is under the jurisdiction of ASTM Committee F17 on Plastic or unheated plastic material streams, forced through one or
Piping Systems and is the direct responsibility of Subcommittee F17.25 on Vinyl
more shaping orifice(s), become one continuously formed
Based Pipe.
piece.
Current edition approved Jan. 15, 2024. Published January 2024. Originally
approved in 1977. Last previous edition approved in 2019 as F512–19. DOI:
3.2.4 external recycled material—industrial rework gener-
10.1520/F0512-19R24.
ated by a different company manufacturing to this specifica-
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
tion. Composition is known by the industrial source of the
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
material.
the ASTM website.
3.2.5 post-consumer recycled material—finished goods that
The last approved version of this historical standard is referenced on
www.astm.org. have been purchased by the public, then returned to industry
*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
F512 − 19 (2024)
and reprocessed into raw materials. Identity of finished goods blowing agent. The pipe produced shall meet all of the
is known by the reprocessing company. requirements of this specification.
3.2.6 certificate of composition—a certificate describing the
5.3 Recycled PVC Materials—Recycled PVC materials con-
certain properties of an external recycled material of a post
forming to the cell classification of this specification may be
consumer recycled material.
used provided they are clean and free from foreign materials
and provided that the conduit or fittings produced meet all
3.2.7 composition disclosure—a document describing the
requirements of this specification.
formulation of an external recycled material.
5.4 Solvent Cement—The solvent cement shall meet the
4. Classification
requirements of Specification D2564.
4.1 This specification covers five types of underground
conduit. There are two having lesser pipe stiffness values,
6. Requirements
designed primarily for concrete encased burial (EB), and three
6.1 Workmanship—The conduit and fittings shall be homo-
with greater pipe stiffness values, designed primarily for direct
geneous throughout, and free from visible cracks, holes,
burial (DB). The complete designations follow:
foreign inclusions, or other injurious defects. The conduit and
Type EB-20 — Designed to be encased in concrete.
fittings shall be as uniform as is commercially practical in
Type EB-35 — Designed to be encased in concrete.
color, opacity, density, and other physical properties.
Type DB-60 — Designed for direct burial without encasement in concrete.
Type DB-100 — Designed for direct burial without encasement in concrete.
6.2 Dimensions:
Type DB-120 — Designed for direct burial without encasement in concrete.
6.2.1 Dimensions shall be determined in accordance with
4.2 This specification covers conduit with integral bells, or
Test Method D2122.
with either separate or attached couplings.
6.2.2 The dimensions and tolerances of the conduit shall be
4.3 This specification covers molded and fabricated fittings
as specified in Table 1.
intended for use with all types of conduit.
6.2.3 Lengths—Conduit shall be supplied in lengths of 20 ft
or 25 ft, or as otherwise agreed upon between the purchaser
5. Materials
and the seller. A length shall be considered to be the overall
5.1 Basic Materials—The conduit shall be made of virgin
length of the conduit, including integral bell, or coupling if
homopolymer PVC compound having a cell classification of
attached, unless otherwise specified. Tolerance on length shall
12254, 12164 (with a minimum tensile strength of 4000 psi
be 61 in. (625 mm).
(28 MPa)), or 12264 (with a minimum tensile modulus of
6.2.4 Integral Bell Dimensions:
500 000 psi) as defined in Specification D1784. Molded fittings
6.2.4.1 Two systems of fit for integral bells are in common
shall be made from PVC compound having a cell classification
use. Unless otherwise specified, the manufacturer may employ
of 12234 or 13343 as defined in Specification D1784. Ho-
either of them.
mopolymer PVC compounds must equal or exceed the require-
6.2.4.2 Interference Fit System—The dimensions and toler-
ments of the listed cell classification numbers.
ances listed in Table 2 provide a satisfactory interference fit
5.2 Rework Materials—Rework material from the manufac-
system between pipe and socket.
turer’s own conduit or fittings production may be used by the
6.2.4.3 Clearance Fit System—The dimensions and toler-
same manufacturer, provided that the conduit or fittings pro-
ances listed in Table 3 of this specification provide a satisfac-
duced meet all of the requirements of this specification.
tory clearance fit system.
Rework material from the manufacture’s coextruded cellular
6.2.5 The wall thickness of integral bells and sweeps shall
core conduit shall be used in the core if it contains any residual
be considered satisfactory if formed from conduit which meets
the minimum requirements of this specification.
6.2.6 Socket depths for integral bells shall conform to the
Supporting data have been filed at ASTM International Headquarters and may
requirements listed in Table 2 or Table 3.
be obtained by requesting Research Report RR:F17-1002.
TABLE 1 Conduit Dimensions and Tolerances, in.
A
Tolerance on Minimum Wall Thickness
Average
Nominal
Outside Minimum Modulus 400 000 psi Minimum Modulus 500 000 psi
Out-of
Size
Average
B
Diameter
Round
EB-20 EB-35 DB-60 DB-100 DB-120 EB-20 EB-35 DB-60 DB-100 DB-120
1 1.315 ±0.005 0.060 — — — — 0.060 — — — — 0.060
1 ⁄2 1.900 ±0.006 0.060 — — 0.060 — 0.065 — — — — 0.060
2 2.375 ±0.006 0.060 — 0.060 0.065 — 0.083 0.060 — 0.060 — 0.077
3 3.500 ±0.008 0.060 0.067 0.082 0.100 0.121 0.127 0.061 0.076 0.092 0.112 0.118
3 ⁄2 4.000 ±0.008 0.100 0.078 0.095 0.115 0.138 0.147 0.072 0.088 0.107 0.128 0.136
4 4.500 ±0.009 0.100 0.089 0.109 0.131 0.155 0.166 0.082 0.100 0.121 0.145 0.154
5 5.563 ±0.010 0.100 0.112 0.136 0.164 0.192 0.205 0.103 0.126 0.152 0.179 0.191
6 6.625 ±0.011 0.100 0.135 0.164 0.196 0.229 0.244 0.125 0.152 0.182 0.213 0.227
A
Tolerance on wall thickness is +12, −0 % or +0.030, −0.000 in. whichever is greater.
B
“Out-of-round” is defined as maximum diameter minus minimum diameter.
F512 − 19 (2024)
TABLE 2 Belled End Dimensions (Interference Fit System), in. TABLE 4 Types of Conduit Fittings
Nominal Average Average Tolerance Out-of Socket 1. Couplings
Size Entrance Bottom on Round Depth 2. Domed caps
A
Diameter Diameter Diameters Tolerance min 3. Flat caps
4. Fittings plugs
1 1.330 1.310 ±0.005 0.020 0.875
5. Tapered plugs
1 ⁄2 1.918 1.894 ±0.006 0.024 1.062
6. Bends (5, 22 ⁄2, 30, 45, and 90°)
2 2.393 2.369 ±0.006 0.024 1.125
7. Sweeps (5, 22 ⁄2, 30, 45, and 90°)
3 3.515 3.492 ±0.008 0.030 1.594
8. Angle Couplings (5°)
3 ⁄2 4.015 3.992 ±0.008 0.030 1.687
9. Fiber conduit adapters
4 4.515 4.491 ±0.009 0.030 1.750
10. Cement-asbestos conduit adapters
5 5.593 5.553 ±0.010 0.060 1.937
11. Water-tight expansion couplings
6 6.658 6.614 ±0.011 0.060 2.125
12. Spigot-ended reducers
A
“Out-of-round” is defined as maximum diameter minus minimum diameter.
13. Socket end-bells
TABLE 3 Belled End Dimensions (Clearance Fit System), in.
TABLE 5 Fittings Socket Dimensions, in.
Average Average Tolerance Out-of Socket Depth
Nominal NOTE 1—Thermoformed fittings may employ the dimensions listed in
Entrance Bottom on Round
min max
Size
A Table 5, or the dimensions listed in Table 3 for integral bell ends.
Diameter Diameter Diameters Tolerance
1 1.331 1.320 ±0.005 0.060 1.000 1.750
1 ⁄2 1.921 1.906 ±0.006 0.060 1.375 2.125
2 2.400 2.381 ±0.006 0.060 1.750 2.500
3 3.538 3.508 ±0.008 0.060 2.875 3.625
3 ⁄2 4.041 4.008 ±0.008 0.100 3.125 3.875
4 4.544 4.509 ±0.009 0.100 3.375 4.125
5 5.614 5.573 ±0.010 0.100 4.000 4.750
6 6.687 6.636 ±0.011 0.100 5.000 5.750
A
“Out-of-round” is defined as maximum diameter minus minimum diameter.
Dimension A Dimension B Dimension C
6.2.7 Integral belled ends shall be centered to provide a
Tolerance Out-of-
Nominal Average Average Minimum
visible shoulder around the entire circumference. on Round
Size Entrance Bottom Socket
Diameters Tolerance
6.2.8 The inside diameters of spigot ends shall be chamfered
Diameter Diameter Depth
as shown in Fig. 1.
2 2.393 2.369 ±0.006 0.012 1.125
3 3.515 3.492 ±0.008 0.015 1.594
6.2.9 Fittings and Sweep Dimensions:
3 ⁄2 4.015 3.992 ±0.008 0.015 1.687
6.2.9.1 The dimensions and types of conduit fittings shall be
4 4.515 4.491 ±0.009 0.015 1.750
as specified in Tables 4-18.
5 5.593 5.553 ±0.010 0.030 1.937
6 6.658 6.614 ±0.011 0.030 2.125
6.2.9.2 Conduit fittings shall be capable of passing a ball
⁄4 in. (6 mm) less in diameter than the nominal size of the
conduit.
6.2.9.3 The dimensions of sweeps and bends shall be as
6.3.1 The minimum pipe stiffness ( F/Δy) values for conduit
specified in Table 18. Sweeps and bends shall be made from
shall be in conformance with Table 19, when tested in
DB-60 or DB-120 conduit. Sweeps made from DB-60 conduit
accordance with 8.3. Three specimens shall be tested, all shall
are intended for use with EB-20 and DB-60 conduit. Sweeps
meet the requirements.
made from DB-120 conduit are intended for use with EB-35
6.3.2 Referee Test—The minimum pipe stiffness (F/Δy)
and DB-120 conduit.
values shall be in accordance with Table 19 when tested in
6.3 Minimum Pipe Stiffness:
accordance with Test Method D2412 at 5 % deflection.
6.4 Impact Strength—The minimum drop weight impact
strength values for conduit shall be as listed in Table 20, when
tested in accordance with 8.1.
6.4.1 The impact test is a quality control test, to be per-
formed at the time of manufacture.
6.5 Joint Tightness (Referee Test)—The joints shall not leak
when tested in accordance with 8.2.
6.6 Extrusion Quality—The conduit shall not flake or dis-
integrate when tested in accordance with Test Method D2152.
6.7 Bond—For pipe produced by the coextrusion process,
that is , pipe containing two or more concentric layers, the bond
between the layers shall be strong and uniform. It shall not be
FIG. 1 Chamfer Detail possible to separate any two layers with a probe or point of a
F512 − 19 (2024)
TABLE 6 Coupling Dimensions, in. TABLE 8 Domed Cap Dimensions, in.
Nominal Size M, max SH, max N, min
Nominal Size W, max M, max
13 1
1 1 ⁄64 0.070 ⁄16
3 13
2 2 ⁄32 2 ⁄16
1 9 1
1 ⁄2 2 ⁄32 0.070 ⁄16
3 3 4 ⁄32
47 3
2 2 ⁄64 0.075 ⁄32
1 1 5
3 ⁄2 3 ⁄8 4 ⁄8
31 7
3 3 ⁄32 0.076 ⁄64
31 13
4 3 ⁄64 5 ⁄64
1 1 7
3 ⁄2 4 ⁄2 0.087 ⁄64
27 1
5 4 ⁄64 6 ⁄4
1 7
4 5 ⁄32 0.097 ⁄64
7 25
6 5 ⁄32 7 ⁄64
1 9
5 6 ⁄4 0.118 ⁄64
1 9
6 7 ⁄2 0.140 ⁄64
TABLE 9 Flat Cap Dimensions, in.
TABLE 7 5° Angle Couplings, in.
Nominal Size F, min M, max
19 35
2 ⁄32 2 ⁄64
1 45
3 ⁄16 3 ⁄64
1 5 7
3 ⁄2 ⁄64 4 ⁄32
3 3
4 ⁄32 4 ⁄4
...