ASTM F3497-21 评估聚丙烯（PP）管道系统对热氯化水的抗氧化性的标准试验方法.pdf

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:F3497-21 INTERNATIONAL Standard Test Method for Evaluating the Oxidative Resistance of Polypropylene (PP) Piping Systems to Hot Chlorinated Watert This standard is issued under the fixed designation F3497: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 (8)indicates an editorial change since the last revision or reapproval. 1.Scope environmental practices and determine the applicability of 1.1 This test method describes the general requirements for regulatory limitations prior to use. evaluating the long-term chlorinated water oxidative resis- 1.5 This international standard was developed in accor- tance of polypropylene (PP)piping produced in accordance dance with internationally recognized principles on standard- with Specification F2389 used in hot-and-cold water distribu- ization established in the Decision on Principles for the tion systems by exposure to hot chlorinated water.This test Development of International Standards Guides and Re- method outlines the requirements...