ASTM F1804-08(2012)
(Practice)Standard Practice for Determining Allowable Tensile Load for Polyethylene (PE) Gas Pipe During Pull-In Installation
Standard Practice for Determining Allowable Tensile Load for Polyethylene (PE) Gas Pipe During Pull-In Installation
SIGNIFICANCE AND USE
4.1 The ATL value is used to set the break-away strength of a weak-link device, or to set other equipment used to limit pulling force during pull-in installation of polyethylene gas pipe, or to determine if pulling equipment can extert pulling force greater than the ATL value for the polyethylene gas pipe being installed.
4.2 The ATL value is determined before gas pipe installation.
SCOPE
1.1 This practice provides a means to determine an allowable tensile load (ATL) value for a polyethylene gas pipe that is to be installed underground using methods that pull the pipe into a trench (cut or plowed), bore hole, casing pipe, or the like. The ATL value takes into account pipe size, tensile yeild strength, pipe temperature, and pulling load duration.
1.2 The ATL is used to set the break-away strength for a “weak-link” device, or as a limit setting for other devices that control the maximum pulling force exerted by equipment used to pull polyethylene gas pipe into an underground location, or to determine if pulling equipment can extert pulling force greater than the ATL value for the gas pipe being installed. A weak-link device is installed where the pipe pulling equipment is connected to the polyethylene gas pipe. If pulling load exceeds the ATL limit, the device de-couples the pipe from the pulling equipment. Other measures or equipment that limit the pulling force on the pipe are also used. When the ATL value is compared to the pulling force developed by the pull-in installation equipment and equipment cannot extert pulling force greater than the ATL value, a weak-link or other device for limiting the pulling force is not necessary.
1.3 This practice does not address weak-link device design or requirements, nor does it address the design or requirements for other equipment or procedures used to limit the pulling force applied to polyethylene gas pipe during pull-in installation.
1.4 This practice does not address installation methods or procedures employed for pull-in of polyethylene gas pipe.
1.5 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.
1.6 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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Designation: F1804 − 08(Reapproved 2012)
Standard Practice for
Determining Allowable Tensile Load for Polyethylene (PE)
Gas Pipe During Pull-In Installation
This standard is issued under the fixed designation F1804; 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 responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
1.1 This practice provides a means to determine an allow-
bility of regulatory limitations prior to use.
able tensile load (ATL) value for a polyethylene gas pipe that
is to be installed underground using methods that pull the pipe
2. Referenced Documents
intoatrench(cutorplowed),borehole,casingpipe,orthelike.
2.1 ASTM Standards:
The ATL value takes into account pipe size, tensile yeild
D638 Test Method for Tensile Properties of Plastics
strength, pipe temperature, and pulling load duration.
D1600 Terminology forAbbreviatedTerms Relating to Plas-
1.2 The ATL is used to set the break-away strength for a
tics
“weak-link” device, or as a limit setting for other devices that
D2513 Specification for Polyethylene (PE) Gas Pressure
control the maximum pulling force exerted by equipment used
Pipe, Tubing, and Fittings
to pull polyethylene gas pipe into an underground location, or
F412 Terminology Relating to Plastic Piping Systems
to determine if pulling equipment can extert pulling force
greater than the ATL value for the gas pipe being installed. A
3. Terminology
weak-link device is installed where the pipe pulling equipment
3.1 Unless otherwise indicated, abbreviations are in accor-
is connected to the polyethylene gas pipe. If pulling load
dance with Terminology D1600, and terms are in accordance
exceeds theATLlimit, the device de-couples the pipe from the
with Terminology F412.
pulling equipment. Other measures or equipment that limit the
pulling force on the pipe are also used. When theATL value is 3.2 allowable tensile load (ATL), n—The maximum tensile
compared to the pulling force developed by the pull-in instal- load applied to a polyethylene gas pipe during pull-in instal-
lation equipment and equipment cannot extert pulling force lation that does not result in an unrecoverable tensile elonga-
greater than the ATL value, a weak-link or other device for tion of the pipe.
limiting the pulling force is not necessary.
NOTE 1—Polyethylene gas pipe materials are visco-elastic, that is, they
exhibit properties associated with both elastic materials such as rubber,
1.3 This practice does not address weak-link device design
and viscous materials such as wax or clay. When subjected to a tensile
or requirements, nor does it address the design or requirements
load that is significant, but less than the yield strength, polyethylene will
for other equipment or procedures used to limit the pulling
elongate or stretch. If the load is then removed, polyethylene will, over
force applied to polyethylene gas pipe during pull-in installa-
time, recover all or part of the elongation, depending upon the magnitude
tion.
of the load, and the length of time the load was applied. For the purposes
of this practice, elongation that is not completely recovered in about 24 h
1.4 This practice does not address installation methods or
after the load is released, is considered unrecoverable.
procedures employed for pull-in of polyethylene gas pipe.
4. Significance and Use
1.5 The values stated in inch-pound units are to be regarded
as standard. The values given in parentheses are mathematical
4.1 TheATLvalue is used to set the break-away strength of
conversions to SI units that are provided for information only
a weak-link device, or to set other equipment used to limit
and are not considered standard.
pulling force during pull-in installation of polyethylene gas
pipe, or to determine if pulling equipment can extert pulling
1.6 This standard does not purport to address all of the
force greater than the ATL value for the polyethylene gas pipe
safety concerns, if any, associated with its use. It is the
being installed.
This practice is under the jurisdiction of Committee F17 on Plastic Piping
Systems and is the direct responsibility of Subcommittee F17.60 on Gas. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Aug.
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