ASTM D2321-05

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An American National Standard
Designation: D 2321 – 05
Standard Practice for
Underground Installation of Thermoplastic Pipe for Sewers
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and Other Gravity-Flow Applications
This standard is issued under the fixed designation D 2321; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
1.1 This practice provides recommendations for the instal-
lation of buried thermoplastic pipe used in sewers and other
2. Referenced Documents
gravity-flow applications. These recommendations are in-
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2.1 ASTM Standards:
tended to ensure a stable underground environment for ther-
D8 Terminology Relating to Materials for Roads and Pave-
moplastic pipe under a wide range of service conditions.
ments
However, because of the numerous flexible plastic pipe prod-
D 653 Terminology Relating to Soil, Rock, and Contained
ucts available and the inherent variability of natural ground
Fluids
conditions, achieving satisfactory performance of any one
D 698 Test Methods for Laboratory Compaction Character-
product may require modification to provisions contained
istics of Soil Using Standard Effort (12,400 ft-lbf/ft (600
herein to meet specific project requirements.
kN-m/m))
1.2 The scope of this practice necessarily excludes product
D 2487 Test Method for Classification of Soils for Engi-
performance criteria such as minimum pipe stiffness, maxi-
neering Purposes (Unified Soil Classification System)
mum service deflection, or long term strength. Thus, it is
D 2488 Practice for Description and Identification of Soils
incumbent upon the product manufacturer, specifier, or project
(Visual-Manual Procedure)
engineer to verify and assure that the pipe specified for an
D 3839 Practice for Underground Installation of Fiberglass
intended application, when installed according to procedures
(Glass-Fiber Reinforced Thermosetting Resin) Pipe
outlined in this practice, will provide a long term, satisfactory
D 4318 Test Method for Liquid Limit, Plastic Limit, and
performance according to criteria established for that applica-
Plasticity Index of Soils
tion. A commentary on factors important in achieving a
F 412 Terminology Relating to Plastic Piping Systems
satisfactory installation is included in Appendix X1.
3. Terminology
NOTE 1—Specific paragraphs in the appendix are referenced in the
body of this practice for informational purposes.
3.1 General—Definitions used in this practice are in accor-
NOTE 2—The following ASTM standards may be found useful in
dance with Terminologies F 412 and D 8 and Terminology
connection with this practice: Practice D 420, Test Method D 1556,
D 653 unless otherwise indicated.
Method D 2216, Specification D 2235,Test Method D 2412, Specification
3.2 Definitions of Terms Specific to This Standard:
D 2564, Practice D 2657, Practice D 2855, Test Methods D 2922, Test
Method D 3017, Practice F 402, Specification F 477, Specification F 545, 3.2.1 foundation, bedding, haunching, initial backfill, final
and Specification F 913.
backfill, pipe zone, excavated trench width—See Fig. 1 for
NOTE 3—Most Plumbing Codes and some Building Codes have provi-
meaning and limits, and trench terminology.
sions for the installation of underground “building drains and building
3.2.2 aggregate—a granular material of mineral composi-
sewers.” See them for plumbing piping applications.
tion such as sand, gravel, shell, slag or crushed stone (see
1.3 This standard does not purport to address all of the
TerminologyD8).
safety concerns, if any, associated with its use. It is the
3.2.3 deflection—any change in the inside diameter of the
responsibility of the user of this standard to establish appro-
pipe resulting from installation and imposed loads. Deflection
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This practice is under the jurisdiction of ASTM Committee F17 on Plastic
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Piping Systems and is the direct responsibility of Subcommittee F17.62 on Sewer For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Pipe. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Current edition approvedAugust 1, 2005. Published September 2005. Originally Standards volume information, refer to the standard’s Document Summary page on
e1
approved in 1989. Last previous edition approved in 2004 as D 2321 – 04 . the ASTM website.
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