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 Remendations issued by the World Trade Organization Technical Barriers to Trade (TBT)Committee. Designation:F2023-21 INTERNATIONAL Standard Test Method for Evaluating the Oxidative Resistance of Crosslinked Polyethylene (PEX)Pipe Tubing and Systems to Hot Chlorinated Water This standard is issued under the fixed designation F2023: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 superseript epsilon (e)indicates an editorial change since the last revision or reapproval. 1.Scope evaluate pipes manufactured from polybutylene(PB).polyethylene(PE). polypropylene (PP) multilayer (polymer-metal posite) copper and 1.1 This test method describes the general requirements for stainless steel. evaluating the long-term chlorinated water oxidative resis- tance of cross-linked polyethylene (PEX)pipe or tubing 1.3 This test method is applicable to PEX pipe or tubing and produced in accordance with PEX specifications such as systems used for transport of potable water containing free- Specification F876 or Specification F2788/F2788M by expo- chlorine for disinfecting purposes.The oxidizing potential of sure to hot chlor...
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