ASTM F876-08b
(Specification)Standard Specification for Crosslinked Polyethylene (PEX) Tubing
Standard Specification for Crosslinked Polyethylene (PEX) Tubing
ABSTRACT
This specification covers crosslinked polyethylene (PEX) tubing that is outside diameter controlled, made in standard thermoplastic tubing dimension ratios, and pressure rated for water at three temperatures. This specification covers one PEX tubing material in one standard dimension ratio and having pressure ratings for water of three temperatures. The pressure ratings decrease as the temperature is increased. PEX tubing shall be made from polyethylene compounds which have been crosslinked by peroxides, Azo compounds, or silane compounds in extrusion, or by electron beam after extrusion, or by other means such that the tubing meets the performance requirements. The following tests shall be performed: dimensions and tolerances; density; sustained pressure test; burst pressure; environmental stress cracking test; degree of crosslinking; stabilizer functionality; and oxidative stability in potable chlorinated water applications.
SCOPE
1.1 This specification covers crosslinked polyethylene (PEX) tubing that incorporates an optional polymeric inner, middle or outer layer and that is outside diameter controlled, made in nominal SDR9 tubing dimension ratios except were noted, and pressure rated for water at three temperatures (see Appendix X1). Included are requirements and test methods for material, workmanship, dimensions, burst pressure, hydrostatic sustained pressure, excessive temperature pressure, excessive temperature-pressure, environmental stress cracking, stabilizer functionality, bent-tube hydrostatic pressure, oxidative stability in potable chlorinated water, and degree of crosslinking. Requirements for tubing markings are also given.
1.2 The text of this specification references notes, footnotes, and appendixes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the specification.
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 The following safety hazards caveat pertains only to the test methods portion, Section 7, 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.
General Information
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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
An American National Standard
Designation: F 876 – 08b
Standard Specification for
1
Crosslinked Polyethylene (PEX) Tubing
This standard is issued under the fixed designation F 876; 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* D 1598 Test Method for Time-to-Failure of Plastic Pipe
Under Constant Internal Pressure
1.1 This specification covers crosslinked polyethylene
D 1599 Test Method for Resistance to Short-Time Hydrau-
(PEX) tubing that incorporates an optional polymeric inner,
lic Pressure of Plastic Pipe, Tubing, and Fittings
middle or outer layer and that is outside diameter controlled,
D 1600 Terminology for Abbreviated Terms Relating to
made in nominal SDR9 tubing dimension ratios except were
Plastics
noted, and pressure rated for water at three temperatures (see
3
D 1898 Practice for Sampling of Plastics
Appendix X1). Included are requirements and test methods for
D 2122 Test Method for Determining Dimensions of Ther-
material,workmanship,dimensions,burstpressure,hydrostatic
moplastic Pipe and Fittings
sustained pressure, excessive temperature pressure, excessive
D 2765 Test Methods for Determination of Gel Content and
temperature-pressure, environmental stress cracking, stabilizer
Swell Ratio of Crosslinked Ethylene Plastics
functionality,bent-tubehydrostaticpressure,oxidativestability
D 2837 Test Method for Obtaining Hydrostatic Design
in potable chlorinated water, and degree of crosslinking.
Basis forThermoplastic Pipe Materials or Pressure Design
Requirements for tubing markings are also given.
Basis for Thermoplastic Pipe Products
1.2 Thetextofthisspecificationreferencesnotes,footnotes,
D 3895 Test Method for Oxidative-Induction Time of Poly-
and appendixes which provide explanatory material. These
olefins by Differential Scanning Calorimetry
notesandfootnotes(excludingthoseintablesandfigures)shall
F 412 Terminology Relating to Plastic Piping Systems
not be considered as requirements of the specification.
F 1281 Specification for Crosslinked Polyethylene/
1.3 The values stated in inch-pound units are to be regarded
Aluminum/Crosslinked Polyethylene (PEX-AL-PEX)
as standard. The values given in parentheses are mathematical
Pressure Pipe
conversions to SI units that are provided for information only
F 2023 Test Method for Evaluating the Oxidative Resis-
and are not considered standard.
tance of Crosslinked Polyethylene (PEX) Tubing and
1.4 The following safety hazards caveat pertains only to the
Systems to Hot Chlorinated Water
test methods portion, Section 7, of this specification: This
2.2 ANSI Standard:
standard does not purport to address all of the safety concerns,
4
B36.10 Standards Dimensions of Steel Pipe (IPS)
if any, associated with its use. It is the responsibility of the user
2.3 Federal Standard:
of this standard to establish appropriate safety and health
5
FED-STD-123 Marking for Shipment (Civil Agencies)
practices and determine the applicability of regulatory limita-
2.4 Military Standard:
tions prior to use.
5
MIL-STD-129 Marking for Shipment and Storage
2. Referenced Documents
2.5 NSF Standard:
2
NSF/ANSI 14 for Plastic Piping Components and Related
2.1 ASTM Standards:
6
Materials
D 618 Practice for Conditioning Plastics for Testing
4
2.6 ISO Standards:
D 792 TestMethodsforDensityandSpecificGravity(Rela-
ISO 1167 Thermoplastics pipes, fittings and assemblies for
tive Density) of Plastics by Displacement
theconveyanceoffluids--Determinationoftheresistance
D 1505 Test Method for Density of Plastics by the Density-
to internal pressure -- Part 1: General method
Gradient Technique
1 3
This specification is under the jurisdiction ofASTM Committee F17 on Plastic Withdrawn. The last approved version of this historical standard is referenced
Piping Systems and is the direct responsibility of Subcommittee F17.26 on Olefin on www.astm.org.
4
Based Pipe. Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
Current edition approved Dec. 1, 2008. Published January 2009. Originally 4th Floor, New York, NY 10036, http://www.ansi.org.
5
approved in 1984. Last previous edition approved 2008 as F 876 – 08a. Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM www.dodssp.daps.mil.
6
Standards volume information, refer to the standard’s Document Summary page on Available from NSF International, P.O. Box 130140, 789 N. Dixboro Rd.,Ann
the AS
...
This document is not anASTM standard and is intended only to provide the user of anASTM 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.
An American National Standard
Designation:F 876–08a Designation: F 876 – 08b
Standard Specification for
1
Crosslinked Polyethylene (PEX) Tubing
This standard is issued under the fixed designation F 876; 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*
1.1 This specification covers crosslinked polyethylene (PEX) tubing that incorporates an optional polymeric inner, middle or
outerlayerandthatisoutsidediametercontrolled,madeinnominalSDR9tubingdimensionratiosexceptwerenoted,andpressure
rated for water at three temperatures (see Appendix X1). Included are requirements and test methods for material, workmanship,
dimensions, burst pressure, hydrostatic sustained pressure, excessive temperature pressure, excessive temperature-pressure,
environmental stress cracking, stabilizer functionality, bent-tube hydrostatic pressure, oxidative stability in potable chlorinated
water, and degree of crosslinking. Requirements for tubing markings are also given.
1.2 The text of this specification references notes, footnotes, and appendixes which provide explanatory material. These notes
and footnotes (excluding those in tables and figures) shall not be considered as requirements of the specification.
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 The following safety hazards caveat pertains only to the test methods portion, Section 7, 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D 618 Practice for Conditioning Plastics for Testing
D 792 Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement
D 1505 Test Method for Density of Plastics by the Density-Gradient Technique
D 1598 Test Method for Time-to-Failure of Plastic Pipe Under Constant Internal Pressure
D 1599 Test Method for Resistance to Short-Time Hydraulic Pressure of Plastic Pipe, Tubing, and Fittings
D 1600 Terminology for Abbreviated Terms Relating to Plastics
3
D 1898 Practice for Sampling of Plastics
D 2122 Test Method for Determining Dimensions of Thermoplastic Pipe and Fittings
D 2765 Test Methods for Determination of Gel Content and Swell Ratio of Crosslinked Ethylene Plastics
D 2837 Test Method for Obtaining Hydrostatic Design Basis for Thermoplastic Pipe Materials or Pressure Design Basis for
Thermoplastic Pipe Products
D 3895 Test Method for Oxidative-Induction Time of Polyolefins by Differential Scanning Calorimetry
F 412 Terminology Relating to Plastic Piping Systems
F 1281 Specification for Crosslinked Polyethylene/Aluminum/Crosslinked Polyethylene (PEX-AL-PEX) Pressure Pipe
F 2023 Test Method for Evaluating the Oxidative Resistance of Crosslinked Polyethylene (PEX) Tubing and Systems to Hot
Chlorinated Water
2.2 ANSI Standard:
4
B36.10 Standards Dimensions of Steel Pipe (IPS)
2.3 Federal Standard:
5
FED-STD-123 Marking for Shipment (Civil Agencies)
2.4 Military Standard:
1
This specification is under the jurisdiction ofASTM Committee F17 on Plastic Piping Systems and is the direct responsibility of Subcommittee F17.26 on Olefin Based
Pipe.
Current edition approved Sept.Dec. 1, 2008. Published September 2008.January 2009. Originally approved in 1984. Last previous edition approved 2008 as F 876 – 08a.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM 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.
3
Withdrawn. The last approved version of this historical standard is referenced on www.astm.org.
4
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
5
Available from Standardization Documents Order Desk, DODSSP, Bldg. 4, Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://www.dodssp.daps.mil.
*A Summary of Changes section appears at the end of thi
...
This document is not anASTM standard and is intended only to provide the user of anASTM 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.
An American National Standard
Designation:F 876–08a Designation: F 876 – 08b
Standard Specification for
1
Crosslinked Polyethylene (PEX) Tubing
This standard is issued under the fixed designation F 876; 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*
1.1 This specification covers crosslinked polyethylene (PEX) tubing that incorporates an optional polymeric inner, middle or
outerlayerandthatisoutsidediametercontrolled,madeinnominalSDR9tubingdimensionratiosexceptwerenoted,andpressure
rated for water at three temperatures (see Appendix X1). Included are requirements and test methods for material, workmanship,
dimensions, burst pressure, hydrostatic sustained pressure, excessive temperature pressure, excessive temperature-pressure,
environmental stress cracking, stabilizer functionality, bent-tube hydrostatic pressure, oxidative stability in potable chlorinated
water, and degree of crosslinking. Requirements for tubing markings are also given.
1.2 The text of this specification references notes, footnotes, and appendixes which provide explanatory material. These notes
and footnotes (excluding those in tables and figures) shall not be considered as requirements of the specification.
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 The following safety hazards caveat pertains only to the test methods portion, Section 7, 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D 618 Practice for Conditioning Plastics for Testing
D 792 Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement
D 1505 Test Method for Density of Plastics by the Density-Gradient Technique
D 1598 Test Method for Time-to-Failure of Plastic Pipe Under Constant Internal Pressure
D 1599 Test Method for Resistance to Short-Time Hydraulic Pressure of Plastic Pipe, Tubing, and Fittings
D 1600 Terminology for Abbreviated Terms Relating to Plastics
3
D 1898 Practice for Sampling of Plastics
D 2122 Test Method for Determining Dimensions of Thermoplastic Pipe and Fittings
D 2765 Test Methods for Determination of Gel Content and Swell Ratio of Crosslinked Ethylene Plastics
D 2837 Test Method for Obtaining Hydrostatic Design Basis for Thermoplastic Pipe Materials or Pressure Design Basis for
Thermoplastic Pipe Products
D 3895 Test Method for Oxidative-Induction Time of Polyolefins by Differential Scanning Calorimetry
F 412 Terminology Relating to Plastic Piping Systems
F 1281 Specification for Crosslinked Polyethylene/Aluminum/Crosslinked Polyethylene (PEX-AL-PEX) Pressure Pipe
F 2023 Test Method for Evaluating the Oxidative Resistance of Crosslinked Polyethylene (PEX) Tubing and Systems to Hot
Chlorinated Water
2.2 ANSI Standard:
4
B36.10 Standards Dimensions of Steel Pipe (IPS)
2.3 Federal Standard:
5
FED-STD-123 Marking for Shipment (Civil Agencies)
2.4 Military Standard:
1
This specification is under the jurisdiction ofASTM Committee F17 on Plastic Piping Systems and is the direct responsibility of Subcommittee F17.26 on Olefin Based
Pipe.
Current edition approved Sept.Dec. 1, 2008. Published September 2008.January 2009. Originally approved in 1984. Last previous edition approved 2008 as F 876 – 08a.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM 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.
3
Withdrawn. The last approved version of this historical standard is referenced on www.astm.org.
4
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
5
Available from Standardization Documents Order Desk, DODSSP, Bldg. 4, Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://www.dodssp.daps.mil.
*A Summary of Changes section appears at the end of thi
...
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