ASTM D3262-96
(Specification)Standard Specification for "Fiberglass" (Glass-Fiber-Reinforced Thermosetting-Resin) Sewer Pipe
Standard Specification for "Fiberglass" (Glass-Fiber-Reinforced Thermosetting-Resin) Sewer Pipe
SCOPE
1.1 This specification covers machine-made fiberglass pipe, 8 in. (200 mm) through 144 in. (3700 mm), intended for use in gravity-flow systems for conveying sanitary sewage, storm water, and some industrial wastes. Both glass-fiber-reinforced thermosetting-resin pipe (RTRP) and glass-fiber-reinforced polymer mortar pipe (RPMP) are fiberglass pipes. Note 1—For the purposes of this standard, polymer does not include natural polymers.
1.2 Although this specification is suited primarily for pipes to be installed in buried applications, it may be used to the extent applicable for other installations such as, but not limited to, sliplining and rehabilitation of existing pipelines.
Note 2—There is no similar or equivalent ISO standard.
1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
1.4 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 problems, 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: D 3262 – 96 An American National Standard
Standard Specification for
“Fiberglass” (Glass-Fiber-Reinforced Thermosetting-Resin)
1,2
Sewer Pipe
This standard is issued under the fixed designation D 3262; 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 D 1600 Terminology for Abbreviated Terms Relating to
Plastics
1.1 This specification covers machine-made fiberglass
D 2412 Test Method for Determination of External Loading
pipe, 8 in. (200 mm) through 144 in. (3700 mm), intended for
Characteristics of Plastic Pipe by Parallel-Plate Loading
use in gravity-flow systems for conveying sanitary sewage,
D 2584 Test Method for Ignition Loss of Cured Reinforced
storm water, and some industrial wastes. Both glass-fiber-
Resins
reinforced thermosetting-resin pipe (RTRP) and glass-fiber-
D 2992 Practice for Obtaining Hydrostatic or Pressure De-
reinforced plastic mortar pipe (RPMP) are fiberglass pipes.
sign Basis for “Fiberglass” (Glass-Fiber-Reinforced
1.2 Although this specification is suited primarily for pipes
Thermosetting-Resin) Pipe and Fittings
to be installed in buried applications, it may be used to the
D 3567 Practice for Determining Dimensions of “Fiber-
extent applicable for other installations such as, but not limited
glass” (Glass-Fiber-Reinforced Thermosetting-Resin) Pipe
to, sliplining and rehabilitation of existing pipelines.
and Fittings
NOTE 1—There is no similar or equivalent ISO standard.
D 3681 Test Method for Chemical Resistance of “Fiber-
1.3 The values stated in inch-pound units are to be regarded glass” (Glass-Fiber-Reinforced Thermosetting-Resin) Pipe
as the standard. The values given in parentheses are for in a Deflected Condition
information only. D 3892 Practice for Packaging/Packing of Plastics
1.4 The following safety hazards caveat pertains only to the D 4161 Specification for “Fiberglass” (Glass-Fiber-
test method portion, Section 8, of this specification. This Reinforced Thermosetting-Resin) Pipe Joints Using Flex-
standard does not purport to address all of the safety problems, ible Elastomeric Seals
if any, associated with its use. It is the responsibility of the user F 412 Terminology Relating to Plastic Piping Systems
of this standard to establish appropriate safety and health F 477 Specification for Elastomeric Seals (Gaskets) for
practices and determine the applicability of regulatory limita- Joining Plastic Pipe
tions prior to use. 2.2 AWWA Standard:
Standard C-950, Glass-Fiber Reinforced Thermosetting
2. Referenced Documents 8
Resin Pipe
2.1 ASTM Standards:
3. Terminology
C 33 Specification for Concrete Aggregates
D 638 Test Method for Tensile Properties of Plastics 3.1 Definitions:
D 695 Test Method for Compressive Properties of Rigid 3.1.1 General—Unless otherwise indicated, definitions are
Plastics in accordance with Terminology D 883 or Terminology F 412,
D 790 Test Methods for Flexural Properties of Unreinforced and abbreviations are in accordance with Terminology D 1600.
and Reinforced Plastics and Electrical Insulating Materi- 3.2 Definitions of Terms Specific to This Standard:
als 3.2.1 fiberglass pipe—tubular product containing glass fiber
D 883 Terminology Relating to Plastics reinforcements embedded in or surrounded by cured thermo-
setting resin. The composite structure may contain aggregate,
granular or platelet fillers, thixotropic agents, pigments, or
dyes. Thermoplastic or thermosetting liners or coatings may be
This specification is under the jurisdiction of ASTM Committee D-20 on
included.
Plastics and is the direct responsibility of Subcommittee D20.23 on Reinforced
Plastic Piping Systems and Chemical Equipment.
Current edition approved April 10, 1996. Published June 1996. Originally
published as D 3262 – 73. Last previous edition D 3262 – 93. This specification
replaces ASTM Specification D 4184. Annual Book of ASTM Standards, Vol 08.04.
2 6
This revision includes changes to 8.4.1, Table 3, and Note 8 and X1.1. Annual Book of ASTM Standards, Vol 08.02.
Paragraphs 6.4.1 and 6.4.2 were added. Annual Book of ASTM Standards, Vol 08.03.
3 8
Annual Book of ASTM Standards, Vol 04.02. Available from the American Water Works Association, 6666 West Quincey
Annual Book of ASTM Standards, Vol 08.01. Ave., Denver, CO 80235.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
D 3262
that few companies have stencil-cutting equipment for this style of type,
3.2.2 liner—a resin layer, with or without filler or reinforce-
and it is therefore acceptable to mark the product type in Arabic numbers.
ment, or both, forming the interior surface of the pipe.
3.2.3 qualification test—one or more tests used to prove the
5. Materials and Manufacture
design of a product. Not a routine quality control test.
5.1 General—The resins, reinforcements, colorants, fillers,
3.2.4 reinforced plastic mortar pipe (RPMP)—fiberglass
and other materials, when combined as a composite structure,
pipe with aggregate.
shall produce a pipe that shall meet the performance require-
3.2.5 reinforced thermosetting resin pipe (RTRP)—
ments of this specification.
fiberglass pipe without aggregate.
5.2 Wall Composition—The basic structural wall composi-
3.2.6 surface layer—a resin layer, with or without filler or
tion shall consist of a thermosetting resin, glass-fiber reinforce-
reinforcement, or both, applied to the exterior surface of the
ment, and if used, an aggregate filler.
pipe structural wall.
5.2.1 Resin—A thermosetting polyester or epoxy resin, with
4. Classification
or without filler.
5.2.2 Reinforcement—A commercial grade of glass fibers
4.1 General—This specification covers fiberglass sewer
with a sizing compatible with the resin used.
pipe defined by raw materials in the structural wall (type) and
liner, surface layer material (grade), and pipe stiffness. Table 1 5.2.3 Aggregate—A siliceous sand conforming to the re-
quirements of Specification C 33, except that the requirements
lists the types, liners, grades, and stiffnesses covered.
for gradation shall not apply.
NOTE 2—All possible combinations of types, liners, grades, and stiff-
5.3 Liner and Surface Layer—A liner or surface layer, or
nesses may not be commercially available. Additional types, liners,
both, when incorporated into or onto the pipe, shall meet the
grades, and stiffnesses may be added as they become commercially
structural requirements of this specification.
available. The purchaser should determine for himself or consult with the
manufacturer for the proper type, liner, grade, and stiffness of pipe to be
5.4 Joints—The pipe shall have a joining system that shall
used under the installation and operating conditions that will exist for the
provide for fluid tightness for the intended service condition.
project in which pipe is to be used.
5.4.1 Unrestrained—Pipe joints capable of withstanding
4.2 Designation Requirements—The pipe materials desig-
internal pressure but not longitudinal forces.
nation code shall consist of the standard designation, ASTM
5.4.1.1 Coupling or Bell-and-Spigot Gasket Joints, with a
D 3262, followed by type, liner, and grade indicated in Arabic
groove either on the spigot or in the bell to retain an
numerals, and pipe stiffness by a capital letter. Table 1 presents
elastomeric gasket that shall be the sole element of the joint to
a summary of the designation requirements. Thus a complete
provide watertightness. For typical joint detail see Fig. 1.
material code shall consist of ASTM D 3262, three numerals,
5.4.1.2 Mechanical Couplings.
and a capital letter.
5.4.2 Restrained—Pipe joints capable of withstanding inter-
nal pressure and longitudinal forces.
NOTE 3—Examples of the designation codes are as follows: (1) ASTM
5.4.2.1 Joints similar to those in 5.4.1.1 with supplemental
D 3262-1-1-3-A for glass–fiber–reinforced aggregate and polyester resin
mortar pipe with a reinforced thermoset liner and an unreinforced
restraining elements.
polyester resin and sand surface layer having a minimum pipe stiffness of
5.4.2.2 Butt Joint, with laminated overlay.
9 psi (62 kPa). (2) ASTM D 3262-4-2-6-C for glass–fiber–reinforced
5.4.2.3 Bell-and-Spigot, with laminated overlay.
epoxy resin pipe with an unreinforced thermoset liner, no surface layer,
5.4.2.4 Bell-and-Spigot, adhesive bonded.
having a minimum pipe stiffness of 36 psi (248 kPa).
5.4.2.5 Flanged.
NOTE 4—Although the Form and Style for ASTM Standards manual
requires that the type classification be roman numerals, it is recognized 5.4.2.6 Mechanical.
TABLE 1 General Designation Requirements for Fiberglass Sewer Pipe
Desig-
A
nation Property Cell Limits
Order
1Type 1234
glass-fiber-reinforced glass-fiber-resin-reinforced glass-fiber-reinforced glass-fiber-reinforced
B B
thermosetting polyester resin thermosetting polyester resin thermosetting epoxy resin thermosetting epoxy resin
B B
mortar (RPMP polyester ) (RTRP polyester ) mortar (RPMP epoxy) (RTRP epoxy)
2 Liner 1234
reinforced thermoset liner non-reinforced thermoset liner thermoplastic liner no liner
3 Grade 1234 5 6
B B B
polyester resin polyester resin polyester resin and epoxy resin surface epoxy resin surface no surface layer
surface layer— surface layer— sand surface layer layer—reinforced layer—non-reinforced
reinforced nonreinforced non-reinforced
A,B
4 Pipe stiffness A B C D
psi (kPa) 9 (62) 18 (124) 36 (248) 72 (496)
A
This cell-type format provides the means of identification and specification of piping materials. This cell-type format, however, is subject to misapplication since
unobtainable property combinations can be selected if the user is not familiar with non-commercially available products. The manufacturer should be consulted.
B
For the purposes of this specification, polyester includes vinyl ester resins.
D 3262
FIG. 1 Typical Joints
NOTE 5—Other types of joints may be added as they become commer-
on adjacent unaffected portions of the surface. No glass fiber
cially available.
reinforcement shall penetrate the interior surface of the pipe
wall.
5.5 Gaskets—Elastomeric gaskets used with this pipe shall
6.1.2 Joint sealing surfaces shall be free of dents, gouges,
conform to the requirements of Specification F 477, except that
composition of the elastomer shall be as agreed upon between and other surface irregularities that will affect the integrity of
the joints.
the purchaser and the supplier for the particular exposure to
oily or aggressive chemical environments. 6.2 Dimensions:
6.2.1 Pipe Diameters—The pipe shall be supplied in the
6. Requirements
nominal diameters shown in Table 2 or Table 3. The tolerances
shall be as shown in Table 2 or Table 3, when measured in
6.1 Workmanship—Each pipe shall be free from all defects
including indentations, delaminations, bubbles, pinholes, accordance with 8.1.1.
cracks, pits, blisters, foreign inclusions, and resin-starved areas 6.2.2 Lengths—Pipe shall be supplied in nominal lengths of
that, due to their nature, degree, or extent, detrimentally affect 10, 20, 30, 40, and 60 ft (3.05, 6.10, 9.15, 12.19, and 18.29 m).
the strength and serviceability of the pipe. The pipe shall be as The actual laying length shall be the nominal length 62 in.
uniform as commercially practicable in color, opacity, density, (651 mm), when measured in accordance with 8.1.2. At least
and other physical properties. 90 % of the total footage of any one size and stiffness,
6.1.1 The inside surface of each pipe shall be free of bulges, excluding special-order lengths, shall be furnished in the
dents, ridges, and other defects that result in a variation of nominal lengths specified by the purchaser. Random lengths, if
inside diameter of more than ⁄8 in. (3.2 mm) from that obtained furnished, shall not vary from the nominal lengths by more
TABLE 2 Nominal Inside Diameters (ID) and Tolerances Inside Diameter Control Pipe
D 3262
TABLE 3 Nominal Outside Diameters (OD) and Tolerances
than 5 ft (1.53 m), or 25 %, whichever is less. plane perpendicular to the longitudinal axis of the pipe, when
6.2.3 Wall Thickness—The average wall thickness of the
measured in accordance with 8.1.4.
pipe shall not be less than the nominal wall thickness published
6.3 Chemical Requirements:
in the manufacturer’s literature current at the time of purchase,
6.3.1 Long-Term—Pipe specimens, when tested in accor-
and the minimum wall thickness at any point shall not be less
dance with 8.2.1, shall be capable of being deflected, without
than 87.5 % of the nominal wall thickness when measured in
failure, at the 50 year strain level given in Table 4 when
accordance with 8.1.3.
exposed to 1.0 N sulfuric acid.
6.2.4 Squareness of Pipe Ends—All points around each end
of a pipe unit shall fall within 6 ⁄4 in. (66.4 mm) or 60.5 %
NOTE 6—See Appendix X1 for derivation of the minimum sewer pipe
of the nominal diameter of the pipe, whichever is greater, to a chemical requirements given in Table 4.
TABLE 4 Minimum Sanitary Sewer Pipe Chemical Requirements e
SCV
Minimum Strain
Pipe Stiffness,
psi (kPa)
6 min 10 h 100 h 1000 h 10 000 h 50 years
9 (62) 0.97 (t/d) 0.84 (t/d) 0.78 (t/d) 0.73 (t/d) 0.68 (t/d) 0.60 (t/d)
18 (124) 0.85 (t/d) 0.72 (t/d) 0.66 (t/d) 0.61 (t/d) 0.56 (t/d) 0.49 (t/d)
36 (248) 0.71 (t/d) 0.60 (t/d) 0.55 (t/d) 0.51 (t/d) 0.47 (t/d) 0.41 (t/d)
72 (496) 0.56 (t/d) 0.48 (t/d) 0.44 (t/d) 0.41 (t/d) 0.38 (t/d) 0.34 (t/d)
Where: t and d are the nominal total wall thickness and the mean diameter (inside diameter plus t) as determined in accordance with 8.1, and
e 5 strain corrosion value.
SCV
D 3262
TABLE 6 Ring Deflection Without Damage or Structural Failure
6.3.2 Control Requirements—Test pipe specimens periodi-
cally in accordance with 8.2.2, following the procedure of
Nominal Pipe Stiffness, psi
8.2.2.1, or alternatively, the procedure of 8.2.2.2.
9 183672
6.3.2.1 When the procedure of 8.2.2.1 is used, the following
three criteria must be met: (a) the average failure time at each Level A 18 % 15 % 12 % 9 %
Level B 30 % 25 % 20 % 15 %
strain level must fall at or above the lower 95 % confidence
limit of the originally determined regression line, (b) no
specimen-failure times may be sooner than the lower 95 %
However, minimum values for Level A and Level B deflections
prediction limit of the originally determined regression line,
shall be equivalent to strains of 0.6 and 1.0 % respectively (as
and (c) one third
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