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  • ASTM F 2023 : 2015

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    Standard Test Method for Evaluating the Oxidative Resistance of Crosslinked Polyethylene (PEX) Pipe, Tubing and Systems to Hot Chlorinated Water

    Available format(s):  Hardcopy, PDF

    Superseded date:  21-01-2022

    Language(s):  English

    Published date:  08-01-2016

    Publisher:  American Society for Testing and Materials

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    1.1This test method describes the general requirements for evaluating the long-term, chlorinated water, oxidative resistance of cross-linked polyethylene (PEX) pipe or tubing produced in accordance with PEX specifications, such as Specification F876 or Specification F2788/F2788M by exposure to hot, chlorinated water. This test method outlines the requirements of a pressurized flow-through test system, typical test pressures, test-fluid characteristics, failure type, and data analysis.

    Note 1:Other known disinfecting systems (chlorine dioxide, ozone, and chloramines) are also used for protection of potable water. Free-chlorine is the most common disinfectant in use today. A PPI research project examined the relative aggressiveness of free chlorine and chloramines on PEX pipes, both at the same 4.0 ppm concentration and the same test temperatures. The results of the testing showed pipe failure times approximately 40% longer when tested with chloramines compared to testing with free chlorine, at the tested conditions. Based on these results, the data suggests that chloramines are less aggressive than free chlorine to PEX pipes.

    1.2Guidelines and requirements for test temperatures, test hoop stresses, and other test criteria have been established by prior testing of PEX pipe or tubing produced by the three most common commercial methods of cross-linking: silane, peroxide, and electron-beam (see Note 2). Other related system components that typically appear in a PEX hot-and-cold water distribution system can be evaluated with the PEX pipe or tubing. When testing PEX pipe or tubing and fittings as a system, it is recommended that the anticipated end-use fitting type(s) and material(s) be included in the test circuit since it is known that some fitting types and materials can impact failure times. Specimens used shall be representative of the piping product(s) and material(s) under investigation.

    Note 2:The procedures described in this test method (with some modifications of test temperatures or stresses, or both) have been used to evaluate pipes manufactured from polybutylene (PB), polyethylene (PE), polypropylene (PP), multilayer (polymer-metal composite), copper, and stainless steel.

    1.3This test method is applicable to PEX pipe or tubing and systems used for transport of potable water containing free-chlorine for disinfecting purposes. The oxidizing potential of the test-fluid specified in this test method exceeds that typically found in potable water systems across the United States.

    1.4The 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.

    1.5The following precautionary caveat pertains only to the test method portion, Section 12, 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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    Committee F 17
    Document Type Test Method
    Publisher American Society for Testing and Materials
    Status Superseded
    Superseded By
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    ASTM F 2389 : 2017 : REV A Standard Specification for Pressure-rated Polypropylene (PP) Piping Systems
    ASTM F 876 : 2019 : REV A Standard Specification for Crosslinked Polyethylene (PEX) Tubing
    ASTM F 2657 : 2007 : R2018 Standard Test Method for Outdoor Weathering Exposure of Crosslinked Polyethylene (PEX) Tubing
    ASTM F 2854 : 2010 : R2016 Standard Specification for Push-Fit Crosslinked Polyethylene (PEX) Mechanical Fittings for Crosslinked Polyethylene (PEX) Tubing
    ASTM F 2769 : 2018 Standard Specification for Polyethylene of Raised Temperature (PE-RT) Plastic Hot and Cold-Water Tubing and Distribution Systems
    ASTM F 2788/F2788M : 2019 Standard Specification for Metric and Inch-sized Crosslinked Polyethylene (PEX) Pipe
    ASTM F 876 : 2020 : REV B Standard Specification for Crosslinked Polyethylene (PEX) Tubing
    ASTM F 2657 : 2021 Standard Test Method for Outdoor Weathering Exposure of Crosslinked Polyethylene (PEX) Tubing
    ASTM F 2854 : 2021 Standard Specification for Push-Fit Crosslinked Polyethylene (PEX) Mechanical Fittings for Crosslinked Polyethylene (PEX) Tubing
    ASTM F 3253 : 2019 Standard Specification for Crosslinked Polyethylene (PEX) Tubing with Oxygen Barrier for Hot- and Cold-Water Hydronic Distribution Systems
    ASTM F 2389 : 2021 Standard Specification for Pressure-rated Polypropylene (PP) Piping Systems

    Standards Referencing This Book - (Show below) - (Hide below)

    ASTM D 1600 : 1999 Standard Terminology for Abbreviated Terms Relating to Plastics
    ASTM D 2122 : 1998 Standard Test Method for Determining Dimensions of Thermoplastic Pipe and Fittings
    ASTM D 1600 : 2007 Standard Terminology for Abbreviated Terms Relating to Plastics
    ASTM D 1600 : 2013 Standard Terminology for Abbreviated Terms Relating to Plastics
    ASTM D 1600 : 2014 Standard Terminology for Abbreviated Terms Relating to Plastics
    ASTM D 1600 : 2008 Standard Terminology for Abbreviated Terms Relating to Plastics
    ASTM F 876 : 2003 Standard Specification for Crosslinked Polyethylene (PEX) Tubing
    ASTM D 2122 : 1998 : EDT 1 Standard Test Method for Determining Dimensions of Thermoplastic Pipe and Fittings
    ASTM D 1600 : 2018 Standard Terminology for Abbreviated Terms Relating to Plastics
    ASTM D 2122 : 1998 : R2004 Standard Test Method for Determining Dimensions of Thermoplastic Pipe and Fittings
    ASTM D 2122 : 2016 Standard Test Method for Determining Dimensions of Thermoplastic Pipe and Fittings
    ASTM F 2788/F2788M : 2021 Standard Specification for Metric and Inch-sized Crosslinked Polyethylene (PEX) Pipe
    ASTM D 2122 : 1998 : R2010 Standard Test Method for Determining Dimensions of Thermoplastic Pipe and Fittings
    ASTM D 2122 : 2015 Standard Test Method for Determining Dimensions of Thermoplastic Pipe and Fittings
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