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ASTM F2433-05(2009)

(Test Method)

Standard Test Method for Determining Thermoplastic Pipe Wall Stiffness

Standard Test Method for Determining Thermoplastic Pipe Wall Stiffness

SIGNIFICANCE AND USE
The performance under bending and compression load of a thermoplastic plastic pipe wall design obtained by this method can be used for the following:
To determine the stiffness of the pipe wall section. This is a function of the pipe dimensions, the wall design, the arc length tested, and the physical properties of the material of which the pipe is made.
To compare the characteristics of various thermoplastic pipe wall designs.
To compare the characteristics of various plastics in pipe form.
To study the interrelations of dimensions, materials, and deformation properties of thermoplastic pipe designs.
To measure the deformation and load-resistance at any of several significant events which may occur during the test.
To provide a reasonable quality control/quality assurance test for very large diameter plastic pipes.
The time-dependent pipe wall stiffness of a thermoplastic pipe obtained by this test method may used for the following:
To predict the residual stiffness of the pipe wall in bending and compression at all times after initial loading.
For purposes of design, to determine a modulus of relaxation under sustained loads.
To quantify the influence of material formulations of thermoplastics on the modulus of relaxation.
To study the influence of geometric patterns of wall profiles on the modulus of relaxation.
The time-independent reduction of wall thickness at springline may be used for the following:
For pipe wall stiffness, to quantify the efficiency of all wall profiles of any material composition and a given geometry with that of a solid uniform thickness wall.
SCOPE
1.1 This test method covers the determination of the load-deflection behavior of thermoplastic pipe wall sections under parallel plate loading conditions.
Note 1—These are not full pipe section tests, but pipe wall segment tests. The results of these tests will be different from pipe stiffness tests per Test Method D2412, although they may be proportional. This test provides quite different information, including , stress relaxation under constant strain, and comparisons of the function and stiffness of different pipe wall designs or materials.
1.2 This test method covers a loading test for determining the wall stiffness of a thermoplastic-pipe wall under a combined load of bending and compression. Changes in pipe wall profile geometry under load may also be determined.
1.3 This test method covers thermoplastic pipe.
1.4 The characteristics determined by this test method are wall stiffness and changes in profile wall dimensions at specific deformations.
1.5 The characteristics determined by this test method are wall stiffness, profile wall efficiency, and for some wall elements stability at specific Strain levels.
1.6 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.7 The text of this specification references notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the specification.
1.8 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

Status
Historical
Publication Date
31-Jul-2009
ICS
23.040.20 - Plastics pipes
Technical Committee
F17 - Plastic Piping Systems
Drafting Committee
F17.40 - Test Methods
Current Stage
Ref Project

Relations

Replaces
ASTM F2433-05 - Standard Test Method for Determining Thermoplastic Pipe Wall Stiffness
Effective Date
01-Aug-2009
Replaced By
ASTM F2433-05(2013) - Standard Test Method for Determining Thermoplastic Pipe Wall Stiffness
Effective Date
01-Aug-2013

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ASTM F2433-05(2009) - Standard Test Method for Determining Thermoplastic Pipe Wall StiffnessASTM F2433-05(2009) - Standard Test Method for Determining Thermoplastic Pipe Wall Stiffness
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ASTM F2433-05(2009) - Standard Test Method for Determining Thermoplastic Pipe Wall Stiffness
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: F2433 − 05(Reapproved 2009) AnAmerican National Standard
Standard Test Method for
1
Determining Thermoplastic Pipe Wall Stiffness
This standard is issued under the fixed designation F2433; 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.
1. Scope 2. Referenced Documents
2
2.1 ASTM Standards:
1.1 This test method covers the determination of the load-
D618 Practice for Conditioning Plastics for Testing
deflection behavior of thermoplastic pipe wall sections under
D695 Test Method for Compressive Properties of Rigid
parallel plate loading conditions.
Plastics
NOTE 1—These are not full pipe section tests, but pipe wall segment
D883 Terminology Relating to Plastics
tests.Theresultsofthesetestswillbedifferentfrompipestiffnesstestsper
D1600 Terminology forAbbreviatedTerms Relating to Plas-
TestMethodD2412,althoughtheymaybeproportional.Thistestprovides
quite different information, including , stress relaxation under constant
tics
strain, and comparisons of the function and stiffness of different pipe wall
D2122 Test Method for Determining Dimensions of Ther-
designs or materials.
moplastic Pipe and Fittings
D2412 Test Method for Determination of External Loading
1.2 This test method covers a loading test for determining
Characteristics of Plastic Pipe by Parallel-Plate Loading
the wall stiffness of a thermoplastic-pipe wall under a com-
F412 Terminology Relating to Plastic Piping Systems
bined load of bending and compression. Changes in pipe wall
profile geometry under load may also be determined.
2.2 AASHTO Standards:
M 252 Standard Specification for Corrugated Polyethylene
1.3 This test method covers thermoplastic pipe.
3
Drainage Pipe
1.4 The characteristics determined by this test method are
M 294 Standard Specification for Corrugated Polyethylene
3
wallstiffnessandchangesinprofilewalldimensionsatspecific Pipe, 300- to 1500-mm Diameter
deformations.
3. Terminology
1.5 The characteristics determined by this test method are
3.1 Definitions—Definitions are in accordance with Termi-
wall stiffness, profile wall efficiency, and for some wall
nology F412, and abbreviations are in accordance with Termi-
elements stability at specific Strain levels.
nology D1600, unless otherwise specified.
1.6 The values stated in SI units are to be regarded as the
3.2 Definitions of Terms Specific to This Standard:
standard. The values given in parentheses are for information
3.2.1 chord shortening, n—the ratio of the reduction in pipe
only.
sectionchordshorteningtotheinitialchordlengthexpressedas
1.7 The text of this specification references notes and a percentage.
footnotes that provide explanatory material. These notes and
3.2.2 ∆y, n—measured change in chord length (in the
footnotes (excluding those in tables and figures) shall not be
directionofloadapplication)expressedinmillimeters(inches).
considered as requirements of the specification.
3.2.2.1 compressive deformation, n—the measured change
1.8 This standard does not purport to address all of the
of the inside diameter in the direction of load application
safety concerns, if any, associated with its use. It is the expressed in millimeters (or inches).
responsibility of the user of this standard to establish appro-
3.2.3 load (F), n—the force applied to the wall section to
priate safety and health practices and determine the applica-
produce or maintain a given percent chord length shortening at
bility of regulatory limitations prior to use.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
1
This test method is under the jurisdiction of ASTM Committee F17 on Plastic contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Piping Systems and is the direct responsibility of Subcommittee F17.40 on Test Standards volume information, refer to the standard’s Document Summary page on
Methods. the ASTM website.
3
Current edition approved Aug. 1, 2009. Published November 2009.Originally Available from American Association of State Highway and Transportation
approved in 2005. Last previous edition approved in 2005 as F2433–05. DOI: Officials (AASHTO), 444 N. Capitol St., NW, Suite 249, Washington, DC 20001,
10.1520/F2433-05R09. http://www.transportation.org.
Copyright ©ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA19428-2959. United States
1

---------------------- Page: 1 ----------------------
F2433 − 05 (2009)
however, many reasons various arc lengths might be tested, especially as
any given unit of time; expressed as Newtons per meter
a research or product development tool. Large arc lengths are primar
...

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Note 2: Some materials may exhibit a nonlinear relationship between log-stress and log-failure time, usually at short failure times. In such cases, the 105-hour stress value computed on the basis of short-term test data may be significantly different than the value obtained when a distribution of data points in accordance with Test Method D2837 is evaluated. However, these data may still be useful for quality control or other applications, provided correlation with long-term data has been established.  
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Standard Specification for Crosslinked Polyethylene/Aluminum/Crosslinked Polyethylene (PEX-AL-PEX) Pressure Pipe

ABSTRACT
This specification covers coextruded cross linked polyethylene composite pressure pipe with welded aluminum tube reinforcement between the inner and outer layers. The inner and outer cross linked polyethylene layers are bonded to the aluminum tube by a melt adhesive. Included is a system of nomenclature for the cross linked polyethylene-aluminum cross linked polyethylene (PEX-AL-PEX) pipes, the requirements and test methods for materials, the dimensions of the component layers and finished pipe, adhesion tests, and the burst and sustained pressure performance. Also given are the requirements and methods of marking. The pipe covered by this specification is intended for use in potable water distribution systems for residential and commercial applications, water service, underground irrigation systems, and radiant panel heating systems, baseboard, snow- and ice-melt systems, and gases that are compatible with the composite pipe and fittings. It covers only composite pipes incorporating a welded aluminum tube. The PEX-AL-PEX pipes are classified by the outside diameter. The pipe shall be free of visible cracks, holes, foreign inclusions, blisters, and other known injurious defects. The pipe shall be as uniform as practicable in color, opacity, density, and other physical properties.
SCOPE
1.1 This specification covers a coextruded crosslinked polyethylene composite pressure pipe with a welded aluminum tube reinforcement between the inner and outer layers. The inner and outer crosslinked polyethylene layers are bonded to the aluminum tube by a melt adhesive. Included is a system of nomenclature for the crosslinked polyethylene-aluminum-crosslinked polyethylene (PEX-AL-PEX) pipes, the requirements and test methods for materials, the dimensions of the component layers and finished pipe, adhesion tests, and the burst and sustained pressure performance. Also given are the requirements and methods of marking. The pipe covered by this specification is intended for use in potable water distribution systems for residential and commercial applications, water service, building supply lines, underground irrigation systems, and radient panel heating systems, baseboard, snow- and ice-melt systems, and gases that are compatible with the composite pipe and fittings.  
1.2 This specification covers only composite pipes incorporating a welded aluminum tube. Pipes consisting of metallic layers not welded together are outside the scope of this specification.  
1.3 Specifications for connectors for use with pipe meeting the requirements of this specification are given in Annex A1.  
1.4 This specification excludes polyethylene-aluminum-polyethylene pipes (see Specification F1282).  
1.5 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.  
1.6 The following precautionary caveat pertains only to the test methods portion, Section 9, 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, health and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

  • Technical specification
    12 pages
    English language
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  • Technical specification
    12 pages
    English language
    sale 15% off