ASTM F512-95(2001)
(Specification)Standard Specification for Smooth-Wall Poly(Vinyl Chloride) (PVC) Conduit and Fittings for Underground Installation
Standard Specification for Smooth-Wall Poly(Vinyl Chloride) (PVC) Conduit and Fittings for Underground Installation
SCOPE
1.1 This specification covers the requirements for smooth-wall poly(vinyl chloride) conduit and fittings for underground communication and electrical power wire and cables.
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 and health practices and determine the applicability of regulatory limitations prior to use.
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Designation: F 512 – 95 (Reapproved 2001) 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 F 512; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope Poly(Vinyl Chloride) (PVC) Pipe and Fittings
F 412 Terminology Relating to Plastic Piping Systems
1.1 This specification covers the requirements for smooth-
wall poly(vinyl chloride) conduit and fittings for underground
3. Terminology
communication and electrical power wire and cables.
3.1 Definitions are in accordance with Terminology F 412
1.2 The values given in parentheses are for information
and abbreviations are in accordance with Terminology D 1600,
only.
unless otherwise specified. The abbreviation for poly(vinyl
1.3 The following safety hazards caveat pertains only to the
chloride) is PVC.
test method portion, Section 8, of this specification: This
standard does not purport to address all of the safety concerns,
4. Classification
if any, associated with its use. It is the responsibility of the user
4.1 This specification covers four types of underground
of this standard to establish appropriate safety and health
conduit. There are two having lesser pipe stiffness values,
practices and determine the applicability of regulatory limita-
designed primarily for concrete encased burial (EB), and two
tions prior to use.
with greater pipe stiffness values, designed primarily for direct
burial (DB). The complete designations follow:
2. Referenced Documents
Type EB-20 — Designed to be encased in concrete.
2.1 ASTM Standards:
Type EB-35 — Designed to be encased in concrete.
D 618 Practice for Conditioning Plastics for Testing
Type DB-60 — Designed for direct burial without encasement in concrete.
D 1600 Terminology for Abbreviated Terms Relating to Type DB-100 — Designed for direct burial without encasement in concrete.
,
2 3
Type DB-120 — Designed for direct burial without encasement in concrete.
Plastics
D 1784 Specification for Rigid Poly(Vinyl Chloride) (PVC)
4.2 This specification covers conduit with integral bells, or
Compounds and Chlorinated Poly(Vinyl Chloride)
with either separate or attached couplings.
4,3
(CPVC) Compounds
4.3 This specification covers molded and fabricated fittings
D 2122 Test Method for Determining Dimensions of Ther-
intended for use with all types of conduit.
moplastic Pipe and Fittings
5. Materials
D 2152 Test Method for Adequacy of Fusion of Extruded
Poly(Vinyl Chloride) (PVC) Pipe and Molded Fittings by
5.1 Basic Materials—The conduit shall be made of virgin
Acetone Immersion
homopolymer PVC compound having a cell classification of
D 2412 Test Method for Determination of External Loading
12254-A or B, 12164-B (with a minimum tensile strength of
Characteristics of Plastic Pipe by Parallel-Plate Loading
4000 psi (28 MPa)), or 12264-A or B (with a minimum tensile
D 2444 Test Method for Determination of the Impact Re-
modulus of 500 000 psi) as defined in Specification D 1784.
sistance of Thermoplastic Pipe and Fittings by Means of a
Molded fittings shall be made from PVC compound having a
Tup (Falling Weight)
cell classification of 12234-B, 12234-C, or 13343-C as defined
D 2466 Specification for Poly(Vinyl Chloride) (PVC) Plas-
in Specification D 1784. Homopolymer PVC compounds must
tic Pipe Fittings, Schedule 40
equal or exceed the requirements of the listed cell classification
D 2564 Specification for Solvent Cements for Poly(Vinyl
numbers.
Chloride) (PVC) Plastic Piping Systems
5.2 Rework Materials—Rework material from the manufac-
D 2855 Practice for Making Solvent-Cemented Joints With
turer’s own conduit or fittings production may be used by the
same manufacturer, provided that the conduit or fittings pro-
duced meet all of the requirements of this specification.
This specification is under the jurisdiction of ASTM Committee F17 on Plastic
5.3 Solvent Cement—The solvent cement shall meet the
Piping and is the direct responsibility of Subcommittee F17.25 on Vinyl Based Pipe.
requirements of Specification D 2564.
Current edition approved Sept. 10, 1995. Published November 1995. Originally
published as F 512 – 77. Last previous edition F 512 – 93.
Annual Book of ASTM Standards, Vol 08.01.
Annual Book of ASTM Standards, Vol 08.02.
4 5
Annual Book of ASTM Standards, Vol 08.04. Supporting data are available at ASTM Headquarters. Request RR:F17-1002.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
F 512
6. Requirements are intended for use with EB-20 and DB-60 conduit. Sweeps
made from DB-120 conduit are intended for use with EB-35
6.1 Workmanship—The conduit and fittings shall be homo-
and DB-120 conduit.
geneous throughout, and free from visible cracks, holes,
6.3 Minimum Pipe Stiffness:
foreign inclusions, or other injurious defects. The conduit and
6.3.1 The minimum pipe stiffness (F/Dy) values for conduit
fittings shall be as uniform as is commercially practical in
shall be in conformance with Table 18, when tested in
color, opacity, density, and other physical properties.
accordance with 8.3. Three specimens shall be tested, all shall
6.2 Dimensions:
meet the requirements.
6.2.1 Dimensions shall be determined in accordance with
6.3.2 Referee Test—The minimum pipe stiffness (F/Dy)
Test Method D 2122.
values shall be in accordance with Table 18 when tested in
6.2.2 The dimensions and tolerances of the conduit shall be
accordance with Test Method D 2412 at 5 % deflection.
as specified in Table 1.
6.4 Impact Strength—The minimum drop weight impact
6.2.3 Lengths—Conduit shall be supplied in lengths of 20 or
strength values for conduit shall be as listed in Table 19, when
25 ft, or as otherwise agreed upon between the purchaser and
tested in accordance with 8.1.
the seller. A length shall be considered to be the overall length
6.4.1 The impact test is a quality control test, to be per-
of the conduit, including integral bell, or coupling if attached,
formed at the time of manufacture.
unless otherwise specified. Tolerance on length shall be 61 in.
6.5 Joint Tightness (Referee Test)—The joints shall not leak
(625 mm).
when tested in accordance with 8.2.
6.2.4 Integral Bell Dimensions:
6.6 Extrusion Quality—The conduit shall not flake or dis-
6.2.4.1 Two systems of fit for integral bells are in common
integrate when tested in accordance with Test Method D 2152.
use. Unless otherwise specified, the manufacturer may employ
either of them.
7. Conditioning
6.2.4.2 Interference Fit System—The dimensions and toler-
7.1 Referee Testing—When conditioning is required for
ances listed in Columns A and B of Table 1 in Specification
referee tests, condition the specimens in accordance with
D 2466 provide a satisfactory interference fit system between
Procedure A in Methods D 618 at 23 6 2°C and 50 6 5%
pipe and socket.
relative humidity for not less than 40 h prior to test. Conduct
6.2.4.3 Clearance Fit System—The dimensions and toler-
tests under the same conditions of temperature and humidity,
ances listed in Table 2 of this specification provide a satisfac-
unless otherwise specified.
tory clearance fit system.
7.2 Quality Control:
6.2.5 The wall thickness of integral bells and sweeps shall
7.2.1 For quality control tests, condition specimens for a
be considered satisfactory if formed from conduit which meets
minimum of3hinair,or1hin liquid at 23 6 2°C (70 to
the minimum requirements of this specification.
77°F). Test the specimens at 23 6 2°C without regard to
6.2.6 Socket depths for integral bells shall conform to the
relative humidity.
requirements listed in Table 2.
7.2.2 For the impact test, condition specimens for at least 30
6.2.7 Integral belled ends shall be centered to provide a
min at 0 to 1.6°C (32 to 35°F).
visible shoulder around the entire circumference.
6.2.8 The inside diameters of spigot ends shall be chamfered
8. Test Methods
as shown in Fig. 1.
8.1 Impact Resistance—Test and evaluate five specimens,
6.2.9 Fittings and Sweep Dimensions:
each 6 6 ⁄16 in. (150 6 2 mm) long, in accordance with Test
6.2.9.1 The dimensions and types of conduit fittings shall be
Method D 2444, using a 20-lb Tup B, and the flat plate (Holder
as specified in Tables 3-17.
B). When testing is performed at temperatures above 0°C, no
6.2.9.2 Conduit fittings shall be capable of passing a ball
more than 15 s shall elapse from the time of removal of the
⁄4 in. (6 mm) less in diameter than the nominal size of the
specimen from the conditioning medium until completion of
conduit.
that test. Specimens may be positioned with a random surface
6.2.9.3 The dimensions of sweeps and bends shall be as
uppermost, but must be located so that the contact point is
specified in Table 17. Sweeps and bends shall be made from
centered. All five specimens shall pass. If one specimen fails,
DB-60 or DB-120 conduit. Sweeps made from DB-60 conduit
test another five specimens: nine out of ten specimens passing
shall be acceptable.
8.2 Joint Tightness (Referee Test)—Cement a section of
conduit to a bell, using the manufacturer’s recommendations
or, in their absence, the methods described in Practice D 2855.
Unless otherwise specified, allow the assembly to stand for at
least 6 h. Then subject the assembly to an internal pressure of
at least 25 psi (170 kPa), using water as the test medium.
Maintain the pressure for at least 1 h. There shall be no
leakage.
8.3 Pipe Stiffness—Determine the pipe stiffness (F/Dy)at
5 % deflection of inside diameter, as described in Test Method
FIG. 1 Chamfer Detail D 2412. Test three specimens each 6 6 ⁄16 in. (150 6 2 mm)
F 512
long. Place each specimen so that the minimum wall thickness PVC 12264-B), size, type of conduit (for example, DB-60), the
is uppermost (adjacent to the top bearing plate). Measure the minimum wall thickness, code or control number, and this
vertical inside diameter before compressing the specimen. designation “ASTM F 512” at intervals of 5 ft (1.5 m) or less.
Compress the specimen at the rate of ⁄2 in. (13 mm)/min, and Any additional marking deemed necessary by the manufacturer
record the load at the point where the vertical inside diameter is permitted.
is equal to 95 % of the original inside diameter of the
12.2 Sweeps and bends shall be made from conduit that is
specimen. marked in accordance with 11.1. In addition, the bend radius
and the degrees shall be marked (for example, 189 R —30° for
9. Inspection
18-in. radius 30° bend).
9.1 Inspection of the material shall be made as agreed upon
12.3 Fittings shall be marked with the manufacturer’s name
between the purchaser and the seller as part of the purchase
or trademark, the conduit size, the phrase “PVC,” and this
contract.
designation “ASTM F 512.” Where fitting size does not permit
legible marking, the packaging shall carry the designated
10. Retest and Rejection
information.
10.1 If the results of any test(s) do not meet the require-
12.4 The minimum letter size permitted on conduit, sweeps,
ments of this specification, the test(s) may be conducted again 1
and bends is ⁄4 in. (6 mm).
in accordance with an agreement between the purchaser and
12.5 Upon agreement between the manufacturer and pur-
the seller. There shall be no agreement to lower the minimum
chaser, or at the manufacturer’s option, for sizes 2 through 6
requirement of the specification by such means as omitting
in., the spigot end of each conduit length shall have a
tests that are a part of the specification, substituting or
circumferential ring mark, or depth of entry mark, placed at a
modifying a test method, or by changing the specification
distance from the conduit end equal to ⁄4 in. (6 mm) more than
limits. In retesting, the product requirements of this specifica-
the depth of the socket of the integral bell or attached coupling
tion shall be met, and the test methods designated in the
supplied on the conduit.
specification shall be followed. If, upon retest, failure occurs,
the quantity of product represented by the test(s) does not meet
13. Packaging
the requirements of this specification.
13.1 Conduit sweeps and bends shall be packaged to protect
them during shipment, handling, and subsequent storage.
11. Certification
13.2 Conduit shall be packaged in units not to exceed 5 ft in
11.1 A manufacturer shall provide certification that the
width, no less than 1 ft nor greater than 4 ft in height. Packaged
product was manufactured in accordance with the requirements
units shall be capable of supporting no less than 10 ft in height
of this specification signed by an authorized agent, provided
of packaged units without damaging the packaged conduit.
that the user, purchaser, or specifying agency, or combination
Packaged conduit units shall have provisions for fork lifting
thereof, so request in the purchase order or contract. Further-
equipment.
more, when agreed upon between the manufacturer and the
13.3 Fittings and cement shall be packaged in suitable
user, purchaser, or specifying agency, or combination thereof,
containers. Containers with volume greater than 30 ft shall
and preferably prior to the date of manufacture, the manufac-
have provisions for fork lifting equipment.
turer shall provide test data and the date on which tests were
conducted for a specific lot or shipment of product made under
14. Quality Assurance
this specification.
14.1 When the product is marked with this designation,
12. Product Marking
F 512, the manufacturer affirms that the product was manufac-
12.1 Conduit shall be clearly marked with the manufactur- tured, inspected, sampled, and tested in accordance with this
er’s name or trademark, PVC cell classification (that is: PVC specification and has been found to meet the requirements of
12254-A, PVC 12254-B, PVC 12164-B, PVC 12264-A, or this specification.
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
Diameter B
Round
EB-20 EB-35 DB-60 DB-100 DB-120 EB-20 EB-35 DB-60 DB-100 DB-120
1 1.315 60.005 0.060 ———— 0.060 — — — — 0.060
1 ⁄2 1.900 60.006 0.060 — — 0.060 — 0.065 — — — — 0.060
2 2.375 60.006 0.060 — 0.060 0.065 — 0.083 0.060 — 0.060 — 0.077
3 3.500 60.008 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 60.008 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 60.009 0.100 0.089 0.109 0.1
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