Standard Specification for Tools to Squeeze-off Polyethylene (PE) Gas Pipe or Tubing

ABSTRACT
This specification covers the physical requirements for tools used to squeeze-off polyethylene gas pipe and tubing. The squeeze bars shall be of a size and configuration that compresses the pipe walls to reduce the gas flow, but does not damage the pipe and may be configured as round (circular), flat with rounded edges, two round bars side by side, or any other configuration. The tool shall have the following requirements: mechanical, hydraulic, or pneumatic force mechanisms; resistance to damage or deformation; release protection; release rate; flow control; and grounding. It shall also have sufficient squeeze bar length and spacing to allow the maximum diameter pipe to be centered between the guides and mechanical stops to provide protection for over squeezing.
SCOPE
1.1 This specification covers the physical requirements for tools used to squeeze-off polyethylene (PE) pipe and tubing. It is limited to squeeze-off procedures set forth by the pipe manufacturer as referred to in Specification D2513 for gas pressure pipe systems.  
1.2 Nothing in this specification shall be construed as recommending practices or systems at variances with governing codes and project specifications.  
1.3 Where applicable in this specification, “pipe” shall mean “pipe and tubing,” and “tool” shall mean “squeeze-off tool.”  
1.4 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.
1.5 The following safety hazards caveat pertains only to the test methods portions, Section 5 and Appendix X1 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 and health practices and determine the applicability of regulatory limitations prior to use.

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Status
Historical
Publication Date
31-Jul-2011
Technical Committee
Drafting Committee
Current Stage
Ref Project

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ASTM F1563-01(2011) - Standard Specification for Tools to Squeeze-off Polyethylene (PE) Gas Pipe or Tubing
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:F1563 −01 (Reapproved 2011) An American National Standard
Standard Specification for
Tools to Squeeze-off Polyethylene (PE) Gas Pipe or Tubing
This standard is issued under the fixed designation F1563; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope F1041Guide for Squeeze-Off of Polyolefin Gas Pressure
Pipe and Tubing
1.1 This specification covers the physical requirements for
tools used to squeeze-off polyethylene (PE) pipe and tubing. It
3. Terminology
is limited to squeeze-off procedures set forth by the pipe
3.1 General—Definitions are in accordance with Terminol-
manufacturer as referred to in Specification D2513 for gas
ogy F412, unless otherwise specified. Abbreviations are in
pressure pipe systems.
accordance with Terminology D1600, unless otherwise speci-
1.2 Nothing in this specification shall be construed as
fied.
recommending practices or systems at variances with govern-
3.2 Definitions of Terms Specific to This Standard:
ing codes and project specifications.
3.2.1 squeeze-off—a technique used to control the flow of
1.3 Where applicable in this specification, “pipe” shall
gas through a pipe by the compressing action of a mechanical,
mean “pipe and tubing,” and “tool” shall mean “squeeze-off
hydraulic or pneumatic device. Squeeze-off may be used, as
tool.”
recommended by the tool or pipe manufacturer, to reduce the
1.4 Thevaluesstatedininch-poundunitsaretoberegarded
flow of gas to an acceptable rate. Under certain conditions
as standard. The values given in parentheses are mathematical
complete stoppage of flow may be obtained.
conversions to SI units that are provided for information only
and are not considered standard.
4. Materials and Manufacture
1.5 The following safety hazards caveat pertains only to the
4.1 Tools shall be manufactured from materials that have
test methods portions, Section 5 and Appendix X1 of this
the structural properties to meet the requirements of this
specification: This standard does not purport to address all of
specification.
the safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- 5. Other Requirements
priate safety and health practices and determine the applica-
5.1 Force Mechanism—The force mechanism (mechanical,
bility of regulatory limitations prior to use.
hydraulic or pneumatic) shall provide a force of at least 1.25
times the force required to squeeze-off the most rigid pipe size
2. Referenced Documents
within the squeeze parameters recommended by the manufac-
2.1 ASTM Standards:
turer of the tool. The most rigid pipe is a function of pipe
D638Test Method for Tensile Properties of Plastics
diameter, wall thickness, pipe material and temperature. The
D1598Test Method for Time-to-Failure of Plastic Pipe
tool manufacturer determines which pipe products his tool is
Under Constant Internal Pressure
suitablefor.Powertoolssuchasimpactwrenchesorpneumatic
D1600TerminologyforAbbreviatedTermsRelatingtoPlas-
motored torque multipliers shall not be used.
tics
5.2 Tool Strength—Atool shall not be structurally damaged
D2513Specification for Polyethylene (PE) Gas Pressure
or functionally affected when tested as follows:
Pipe, Tubing, and Fittings
5.2.1 Measure the load (P) required to squeeze-off the most
F412Terminology Relating to Plastic Piping Systems
rigid pipe (largest size, thickest wall, highest density, lowest
temperature) within the range of the tool.
This specification is under the jurisdiction ofASTM Committee F17 on Plastic
5.2.2 Prepareapipespecimenfromthispipe.Thespecimen
Piping Systems and is the direct responsibility of Subcommittee F17.60 on Gas.
length shall be no less than five times the nominal outside
Current edition approved Aug. 1, 2011. Published November 2011. Originally
diameter of the pipe, but in no case less than 12 in. (305 mm).
approvedin1993.Lastpreviouseditionapprovedin2007asF1563-01(2007).DOI:
10.1520/F1563-01R11.
5.2.3 Insert the pipe specimen into the tool. Center the
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
specimen in the tool.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
5.2.4 Apply the largest load attainable by the force mecha-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. nism (without additional mechanical advantage) onto the
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F1563−01 (2011)
mechanical stops and then inspect.Any permanent damage or
deformation to the mechanical or hydraulic components is
cause for rejection of the tool.
5.2.5 Apply a load of 1.25 × P (see 5.2.1) on the pipe for
twentycycles.Acycleis:applyload,holdloadforoneminute,
remove load. For each cycle, use a new unsqueezed area of
pipe, at least three pipe diameters from a previous squeeze.
5.3 Release Protection—Each tool shall be built to prevent
unintentional release in the squeeze mode. A screw-feed
mechanism used to apply force in some tools qualifies as
premature release protection if the force can only be removed
by unscrewing the mechanism at the 1.25 × P test load.
NOTE 1— Other bar shapes may also be acceptable (see 6.1).
5.4 Release Rate—Forpipesizesgreaterthan1in.(25mm)
FIG. 1Squeeze Bar Configurations
IPS, it is recommended the tool design provide a release rate
of 0.5 in./min (12.7 mm/min) or less, as suggested in Guide
A
TABLE 1 Minimum Squeeze Bar Radii
F1041.
Round Bar Minimum
B
Flat Bar Minimum Radius
5.5 Flow Control—Squeeze-off results in the reduction of
Nominal Pipe Size in. Radius (R in Fig. 1)in.
(R in Fig. 1) in. (mm)
gas flow and in some cases the complete stoppage of gas flow. (mm)
1 3
⁄4 to ⁄4 0.50 (12) 0.25 (6.4)
This specification does not specify to what degree of gas flow
1to1 ⁄4 0.62 (16) 0.31 (7.9)
control is required for any set of squeeze-off conditions.
3 to 4 0.75 (19) 0.38 (9.7)
AppendixX1providesaprocedureforevaluatingflowcontrol.
6 to 8 1.00 (25) 0.50 (13)
Otherproceduresforflowcontrolevaluationmayalsobeused. 10 to 12 1.00 (25) 0.50 (13)
14 to 16 1.25 (32) 0.62 (16)
5.6 Grounding—S
...

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