ASTM D2122-98(2004)
(Test Method)Standard Test Method for Determining Dimensions of Thermoplastic Pipe and Fittings
Standard Test Method for Determining Dimensions of Thermoplastic Pipe and Fittings
SIGNIFICANCE AND USE
This test method provides for determining the physical dimensions of thermoplastic pipe and fittings. This test method is suitable for determination of dimensional compliance with product specifications.
SCOPE
1.1 This test method covers the determination of diameter, wall thickness, and length dimensions of thermoplastic pipe. Included are procedures for measurement of the inside diameter of pipe intended to be joined by internal fittings, measurement of the average outside diameter for roundable pipe where out-of-roundness is not of primary concern, out-of-roundness measurement and measurement of the average outside diameter of non-roundable pipe, and for determining length and straightness.
1.2 This test method also includes procedures for dimensioning molded thermoplastic pipe fittings.
1.3 The values given in parentheses are provided for information purposes only.
1.4 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.
General Information
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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An American National Standard
Designation:D2122–98 (Reapproved 2004)
Standard Test Method for
Determining Dimensions of Thermoplastic Pipe and
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Fittings
This standard is issued under the fixed designation D2122; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope B 2.1 Pipe Threads (Except Dryseal)
1.1 This test method covers the determination of diameter,
3. Terminology
wall thickness, and length dimensions of thermoplastic pipe.
3.1 Definitions:
Included are procedures for measurement of the inside diam-
3.1.1 General—Definitions are in accordance with Termi-
eter of pipe intended to be joined by internal fittings, measure-
nology F412, unless otherwise specified.
ment of the average outside diameter for roundable pipe where
3.1.2 deviation from straightness—the maximum deviation
out-of-roundness is not of primary concern, out-of-roundness
fromastraightlineexhibitedbyapipespecimendividedbythe
measurementandmeasurementoftheaverageoutsidediameter
length of the specimen.
ofnon-roundablepipe,andfordetermininglengthandstraight-
3.1.3 nonroundable pipe—pipe made from a material hav-
ness.
ing a tensile or flexural modulus of elasticity of 150 000 psi
1.2 This test method also includes procedures for dimen-
(103 MPa) or greater, as determined by Test Method D638 or
sioning molded thermoplastic pipe fittings.
D790, and in addition, having an outside diameter/wall thick-
1.3 The values given in parentheses are provided for infor-
ness ratio of less than 20.
mation purposes only.
3.1.3.1 Discussion—The above definitions apply to thermo-
1.4 This standard does not purport to address all of the
plastic pipe and are based on the ability or inability of a pipe
safety concerns, if any, associated with its use. It is the
to round out when forced into a tapered socket.
responsibility of the user of this standard to establish appro-
3.1.4 roundable pipe—(1) pipe made from material having
priate safety and health practices and determine the applica-
a tensile or flexural modulus of elasticity less than 150 000 psi
bility of regulatory limitations prior to use.
(103 MPa) as determined by Test Method D638 or D790; and
2. Referenced Documents (2) pipe made from a material having a tensile or flexural
2 modulus of elasticity of 150 000 psi (103 MPa) or greater, as
2.1 ASTM Standards:
determined by Test Method D638 or D790, and in addition,
D618 Practice for Conditioning Plastics for Testing
having an outside diameter/wall thickness ratio of 20 or
D638 Test Method for Tensile Properties of Plastics
greater.
D790 Test Methods for Flexural Properties of Unreinforced
3.1.5 socket bottom—the point at which the pipe stop
and Reinforced Plastics and Electrical Insulating Materials
radius intersects wall.
F412 Terminology Relating to Plastic Piping Systems
F1498 Specification for Taper Pipe Threads 60° for Ther-
4. Summary of Test Method
moplastic Pipe and Fittings
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4.1 Alternate Methods—Alternate methods and procedures
2.2 ANSI Standard:
for obtaining dimensions (such as apparatus and procedures
using laser, electronic, nuclear, ultrasonic, or other means) are
1
This test method is under the jurisdiction of ASTM Committee F17 on Plastic
not prohibited.
Piping Systems and is the direct responsibility of Subcommittee F17.40 on Test
4.1.1 The user of an alternate method shall validate the
Methods.
alternate method. The alternate method is validated when both
Current edition approved Sept. 1, 2004. Published September 2004. Originally
´1
approved in 1962. Last previous edition approved in 1998 as D2122 – 98 . DOI:
the product is measured according to the Apparatus and
10.1520/D2122-98R04.
Procedure sections presented in this test method, and when
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
found to be in compliance with product specifications.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
NOTE 1—Validation of the alternate method is a necessary step in
the ASTM website.
ensuring compliance with product specifications. Validation generally
3
Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
involves statistical analysis of data generated using the alternate method.
4th Floor, New York, NY 10036.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D2122–98 (2004)
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