ASTM F2136-18
(Test Method)Standard Test Method for Notched, Constant Ligament-Stress (NCLS) Test to Determine Slow-Crack-Growth Resistance of HDPE Resins or HDPE Corrugated Pipe
Standard Test Method for Notched, Constant Ligament-Stress (NCLS) Test to Determine Slow-Crack-Growth Resistance of HDPE Resins or HDPE Corrugated Pipe
SIGNIFICANCE AND USE
4.1 This test method does not purport to interpret the data generated.
4.2 This test method is intended to compare slow-crack-growth (SCG) resistance for a limited set of HDPE resins.
4.3 This test method may be used on virgin HDPE resin compression-molded into a plaque or on extruded HDPE corrugated pipe that is chopped and compression-molded into a plaque (see 7.1.1 for details).
SCOPE
1.1 This test method is used to determine the susceptibility of high-density polyethylene (HDPE) resins or corrugated pipe to slow-crack-growth under a constant ligament-stress in an accelerating environment. This test method is intended to apply only to HDPE of a limited melt index (0.947 to 0.955 g/cm3). This test method may be applicable for other materials, but data are not available for other materials at this time.
1.2 This test method measures the failure time associated with a given test specimen at a constant, specified, ligament-stress level.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.4 Definitions are in accordance with Terminology F412, and abbreviations are in accordance with Terminology D1600, unless otherwise specified.
1.5 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.
1.6 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.
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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.
Designation: F2136 − 18
Standard Test Method for
Notched, Constant Ligament-Stress (NCLS) Test to
Determine Slow-Crack-Growth Resistance of HDPE Resins
1
or HDPE Corrugated Pipe
This standard is issued under the fixed designation F2136; 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 is used to determine the susceptibility
D1600 Terminology forAbbreviatedTerms Relating to Plas-
of high-density polyethylene (HDPE) resins or corrugated pipe
tics
to slow-crack-growth under a constant ligament-stress in an
D1822 Test Method for Tensile-Impact Energy to Break
acceleratingenvironment.Thistestmethodisintendedtoapply
Plastics and Electrical Insulating Materials
only to HDPE of a limited melt index (<0.4 to 0.15) and
3
D4703 Practice for Compression Molding Thermoplastic
density range (>0.947 to 0.955 g/cm ). This test method may
Materials into Test Specimens, Plaques, or Sheets
be applicable for other materials, but data are not available for
D5397 Test Method for Evaluation of Stress Crack Resis-
other materials at this time.
tance of Polyolefin Geomembranes Using Notched Con-
1.2 This test method measures the failure time associated
stant Tensile Load Test
with a given test specimen at a constant, specified, ligament-
E4 Practices for Force Verification of Testing Machines
stress level.
E691 Practice for Conducting an Interlaboratory Study to
Determine the Precision of a Test Method
1.3 The values stated in inch-pound units are to be regarded
as standard. The values given in parentheses are mathematical F412 Terminology Relating to Plastic Piping Systems
conversions to SI units that are provided for information only
and are not considered standard. 3. Summary of Test Method
3.1 This test method subjects a dumbbell-shaped, notched
1.4 Definitions are in accordance with Terminology F412,
test-specimen (Fig. 1) to a constant ligament-stress in the
and abbreviations are in accordance with Terminology D1600,
presence of a surface-active agent at an elevated temperature.
unless otherwise specified.
It differs from Test Method D5397 in that a constant ligament
1.5 This standard does not purport to address all of the
stress is used instead of a constant tensile load.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
4. Significance and Use
priate safety, health, and environmental practices and deter-
4.1 This test method does not purport to interpret the data
mine the applicability of regulatory limitations prior to use.
generated.
1.6 This international standard was developed in accor-
dance with internationally recognized principles on standard-
4.2 This test method is intended to compare slow-crack-
ization established in the Decision on Principles for the
growth (SCG) resistance for a limited set of HDPE resins.
Development of International Standards, Guides and Recom-
4.3 This test method may be used on virgin HDPE resin
mendations issued by the World Trade Organization Technical
compression-molded into a plaque or on extruded HDPE
Barriers to Trade (TBT) Committee.
corrugated pipe that is chopped and compression-molded into
a plaque (see 7.1.1 for details).
1
This test method is under the jurisdiction of ASTM Committee F17 on Plastic
Piping Systems and is the direct responsibility of Subcommittee F17.40 on Test
2
Methods. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Feb. 15, 2018. Published February 2018. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approvedin2001.Lastpreviouseditionapprovedin2015asF2136–08(2015).DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/F2136-18. the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
F2136 − 18
T = thickness.
W = specimen width.
NOTE 1—The test specimen is intended to have the same geometry used forTest Method D5397 specimens.The length of the specimen can be changed
to suit the design of the test apparatus. However, there should be a constant neck section with length at least 0.5 in. (13 mm) long.
NOTE2—Itispreferabletomodifythespeci
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: F2136 − 08 (Reapproved 2015) F2136 − 18
Standard Test Method for
Notched, Constant Ligament-Stress (NCLS) Test to
Determine Slow-Crack-Growth Resistance of HDPE Resins
1
or HDPE Corrugated Pipe
This standard is issued under the fixed designation F2136; 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 Scope*
1.1 This test method is used to determine the susceptibility of high-density polyethylene (HDPE) resins or corrugated pipe to
slow-crack-growth under a constant ligament-stress in an accelerating environment. This test method is intended to apply only to
3
HDPE of a limited melt index (<0.4 to 0.15) and density range as defined in AASHTO(>0.947 to 0.955 g/cm Standard
Specification M 294. ). This test method may be applicable for other materials, but data are not available for other materials at this
time.
1.2 This test method measures the failure time associated with a given test specimen at a constant, specified, ligament-stress
level.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
1.4 Definitions are in accordance with Terminology F412AASHTO Standard Specification M 294, , and abbreviations are in
accordance with Terminology D1600, unless otherwise specified.
1.5 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.6 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D1600 Terminology for Abbreviated Terms Relating to Plastics
D1822 Test Method for Tensile-Impact Energy to Break Plastics and Electrical Insulating Materials
D4703 Practice for Compression Molding Thermoplastic Materials into Test Specimens, Plaques, or Sheets
D5397 Test Method for Evaluation of Stress Crack Resistance of Polyolefin Geomembranes Using Notched Constant Tensile
Load Test
E4 Practices for Force Verification of Testing Machines
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
F412 Terminology Relating to Plastic Piping Systems
2.2 Other Document:
3
AASHTO Standard Specification M 294
3. Summary of Test Method
3.1 This test method subjects a dumbbell-shaped, notched test-specimen (Fig. 1) to a constant ligament-stress in the presence
of a surface-active agent at an elevated temperature. It differs from Test Method D5397 in that a constant ligament stress is used
instead of a constant tensile load.
1
This test method is under the jurisdiction of ASTM Committee F17 on Plastic Piping Systems and is the direct responsibility of Subcommittee F17.40 on Test Methods.
Current edition approved Dec. 1, 2015Feb. 15, 2018. Published December 2015February 2018. Originally approved in 2001. Last previous edition approved in 20082015
as F2136–08F2136–08(2015). DOI: 10.1520/F2136-08R15.10.1520/F2136-18.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 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 the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
F2136 − 18
T = thickness.
W = specimen width.
NOTE 1—The test specimen is intended to have the same geometry used for Test Method D5397 specimens. The length of the specimen can be changed
to suit the design of the test apparatus. However, there should be a constant neck section with length at least 0.5 in. (13 mm) long.
NOTE 2—It is preferable to modify the specimen die so that the attachme
...
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