Buying Guide

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Revised 4/26/2019
Plastic Piping Standards
Many commercial, industrial, and governmental standards or
specifications are available to assist the design engineer in
specifying plastic piping systems. Standards most frequently
specified in plastic piping systems are ASTM International.
Following is a list and description of those standards most
typically applied to industrial plastic piping.
ASTM Standard D1784
This standard covers PVC and CPVC compounds used in the
manufacture of plastic pipe, valves, and fittings. It provides
a means for selecting and identifying compounds on the basis
of a number of physical and chemical criteria. Conformance
to a particular material classification in this standard requires
meeting a number of minimum physical and chemical properties.
ASTM Standards D2665 and D3311
These standards provide the material and test requirements as
well as the fitting geometries for PVC-DWV (drain, waste and
vent) fittings. These fittings are joined by threading or solvent
cementing.
ASTM Standard D2466
This standard covers Schedule 40 PVC threaded and socket
pressure fittings. Included in the standard are thread and
socket specifications, lay length, wall thickness, burst, material,
quality, and identification requirements.
ASTM Standard D2467
This standard covers Schedule 80 PVC threaded and socket
fittings. Included in the standard are thread and socket
specifications, lay length, wall thickness, burst, material, quality,
and identification requirements.
ASTM Standard D2846
This standard covers plastic hot and cold-water distribution
system components made in one standard dimension ratio. This
includes a series of CTS (copper tube size) CPVC fittings meant
for use with SDR 11 tube and plastic-to-metal transition fittings.
ASTM Standard D3965
This standard covers ABS compounds used in the manufacture
of pipe and fittings. It identifies the chemical and physical
properties of several ABS compositions based upon impact
strength, deflection temperature under load, and tensile stress
at yield point. These properties identify the polymers or blends
of polymers that make up this rigid thermoplastic material.
ASTM Standards D2661 and D3311
These standards cover ABS-DWV (drain, waste and vent) by
material and by physical configuration. These products are
threaded or joined by solvent cement.
ASTM Standard F1498
This standard covers dimensions, tolerances, and gaging of
tapered pipe threads used on plastic ends of pipe and fittings.
ASTM Test Properties Material
Methods ABS PVC CPVC
3-2-2-2-2 12454 23447
General Specific Gravity 1.00 - 1.08 1.38 1.55
D792
D570 Water Absorption % 0.3 0.05 0.05
24 Hrs. @ 73°F
Mechanical Tensile Strength 4,500 7,000 7,000
D638 psi @ 73°F
Modulus of
D638 Elasticity in Tension 2.4 4.0 3.6
psi @ 73°F x 10
5
D790 Flexural Strength psi 10,000 14,500 15,600
D256 Izod Impact Strength 4.0 0.65 1.5
@ 73°F (Notched)
Thermal Coefficient of 5.0 3.0 3.8
D696 Thermal Expansion
in/in/°Fx10
-5
C177 Thermal Conductivity 1.35 1.2 0.95
BTU/HR/Sq. Ft./°F/in
D648 Heat Distortion 219 165 238
Temp. °F @ 66 psi
D648 Heat Distortion 180 158 212
Temp. °F @ 264 psi
Resistance to Heat 180 140 210
°F at Continuous
Drainage
Flammability Limiting Oxygen 19 43 60
D2863 Index (%)
E84 Flame Spread 150-250 15-20 15
Underwriter’s 94HB 94V-0 94V-0
Lab Rating
(Sub. 94)
Material Selection
Plastic Piping Standards