ASTM F1041-20

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: F1041 − 02 (Reapproved 2016) F1041 − 20 An American National Standard
Standard Guide for
Squeeze-Off of Polyolefin Gas Pressure Pipe and Tubing
This standard is issued under the fixed designation F1041; 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 guide describes general procedures for squeeze-off of polyolefin gas pressure pipe and tubing. Pipe and squeeze tool
manufacturers shall be requested to supply recommendations for squeeze-off with materials or products.
1.2 Governing codes and project specifications should be consulted. Nothing in this document should be construed as
recommending practices or systems at variance with governing codes and project specifications.
1.3 This guide covers squeeze-off of polyolefin pipe and tubing in accordance with Specification D2513.
1.4 Where applicable in this guide, “pipe” shall mean “pipe and tubing.”
1.5 Units–The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are
mathematical conversions to SI units, which are provided for information only and are not considered the standard.
1.6 This standard does not purport to address all of the safety problems,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.
1.7 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.
2. Referenced Documents
2.1 ASTM Standards:
D2513 Specification for Polyethylene (PE) Gas Pressure Pipe, Tubing, and Fittings
F1734 Practice for Qualification of a Combination of Squeeze Tool, Pipe, and Squeeze-Off Procedures to Avoid Long-Term
Damage in Polyethylene (PE) Gas Pipe
2.2 Other Standards:Documents:
GRI-92/0147.2 Volume 2: Technical Reference on Squeeze-off of Polyethylene Gas Pipes
OTD Project 2.14c / GTI Project 22245 “Assessment of Squeeze-off Location for Small Diameter Polyethylene Pipe and Tubing
– Phase 2”
This guide is under the jurisdiction of ASTM Committee F17 on Plastic Piping Systems and is the direct responsibility of Subcommittee F17.60 on Gas.
Current edition approved May 1, 2016Aug. 1, 2020. Published May 2016August 2020. Originally approved in 1987. Last previous edition approved in 20082016 as
F1041 – 02(2008).(2016). DOI: 10.1520/F1041-02R16.10.1520/F1041-20.
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.
GRI Document Fulfillment Center, 1510 Hubbard Dr. Batavia, IL 60510.
Available from GTI, 1700 S Mount Prospect Rd. Des Plaines, IL 60018 https://www.gti.energy/.
*A Summary of Changes section appears at the end of this standard
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F1041 − 20
3. Significance and Use
3.1 Squeeze-off is a technique used to control the flow of gas through a pipe by the compressing action of a mechanical or
hydraulic device. Squeeze-off may be used to reduce the flow of gas to an acceptable rate.
3.2 Proper squeeze-off procedures result in significant time saving in the reduction of gas flow in an emergency and in the
maintenance and operation, or both, of a gas distribution system. Improper squeeze-off can cause damage to the pipe or create a
safety hazard, or both.
4. Operator Experience
4.1 Each squeeze-off shall be made in accordance with written procedures in accordance with Practice F1734, that have been
proven to produce safe squeeze-off. The person actually responsible for the squeeze-off shall ensure that detailed procedures are
developed in conjunction with the owner of the pipe system, the manufacturer of the pipe, and the manufacturer of the squeeze-off
tools. These procedures shall include safety precautions to be followed and are to be issued before actual squeeze-off operations
commence.
4.2 Skill and knowledge on the part of the operator are required to control the flow of gas to achieve a safe squeeze-off. This skill
and knowledge shall be obtained by making squeeze-offs in accordance with written procedures in accordance with Practice F1734.
5. Pipe and Conditions
5.1 In order to obtain proper squeeze-off, it is necessary to consider the pipe diameter, wall thickness, pipe material, internal
pressure, squeeze tool(s), squeeze-off procedure and environmental conditions. The user shall request the pipe manufacturer to
supply specific recommendations for the squeeze-off of the manufacturer’s product based upon the evaluation procedures outlined
in Practice F1734 with additional considerations for internal pressure and ambient temperature. The operator shall exercise caution
during cold temperatures because the pipe may be more susceptible to squeeze off damage.
6. Apparatus
6.1 Tools to squeeze-off polyolefin gas pressure pipe and tubing shall conform to the requirements of F1563.
7. Procedure
7.1 Proper squeeze-off procedures developed in accordance with Practice F1734 shall address safety considerations, tool location,
tool operation, tool removal, and post squeeze-off considerations.
7.2 Safety Considerations—Pressure control situations requiring
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