1、Designation:F226314Standard Test Method forEvaluating the Oxidative Resistance of Polyethylene(PE)Pipe to Chlorinated Water1This standard is issued under the fixed designation F2263;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the
2、 year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This test method describes the general requirements forevaluating the long-term,chlorinated water,oxidative resis
3、-tance of polyethylene(PE),used in cold water supply orservice systems by exposure to chlorinated water.This testmethod outlines the requirements of a pressurized flow-throughtest system,typical test pressures,test-fluid characteristics,failure type,and data analysis.NOTE1Other known disinfecting sy
4、stems(chlorine dioxide,ozone,and chloramine)are currently used for protection of potable water;however,free-chlorine is by far the most common system in use today.Disinfecting systems other than chlorine have not been evaluated by thismethod.1.2 Guidelines and requirements for test temperatures,test
5、hoop stresses,and other test criteria have been established byprior testing of PE pipe.Other related system components thattypically appear in a PE cold water supply or service systemcan be evaluated with the PE pipe.When testing PE pipe andfittings as a system,it is recommended that the anticipated
6、end-use fitting type(s)and material(s)be included in the testcircuit since it is known that some fitting types and materialscan impact failure times.Specimens used shall be representa-tive of the piping product(s)and material(s)under investiga-tion.NOTE2The procedures described in this test method(w
7、ith somemodifications of test temperatures or stresses,or both)have been used toevaluate pipes manufactured from polybutylene(PB),crosslinked poly-ethylene(PEX),polypropylene(PP),multilayer(polymer-metalcomposite),copper,and stainless steel.1.3 This test method is applicable to PE pipe and systemsus
8、ed for transport of potable water containing free-chlorine fordisinfecting purposes.The oxidizing potential of the test-fluidspecified in this test method exceeds that typically found inpotable water systems across the United States.1.4 The values stated in inch-pound units are to be regardedas stan
9、dard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.5 The following precautionary caveat pertains only to thetest method portion,Section 12,of this specification.Thisstandard does not purport to address
10、all of the safety concerns,if any,associated with its use.It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.2.Referenced Documents2.1 ASTM Standards:2D1600 Terminology forAb
11、breviated Terms Relating to Plas-ticsD2122 Test Method for Determining Dimensions of Ther-moplastic Pipe and FittingsE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test MethodF412 Terminology Relating to Plastic Piping Systems2.2 ISO Standards:ISO 9080 Thermopla
12、stic Pipe for Transport of FluidsMethods of Extrapolation of Hydrostatic Stress RuptureData to Determine the Long Term Strength of Thermo-plastic Pipe32.3 Plastics Pipe Institute(PPI)Document:TN-16 Rate Process Method for Projecting Performance ofPolyethylene Piping Components42.4 American Water Wor
13、ks Association(AWWA)Document:1996 WATER:STATS Survey53.Terminology3.1 Definitions:1This test method is under the jurisdiction of ASTM Committee F17 on PlasticPiping Systems and is the direct responsibility of Subcommittee F17.40 on TestMethods.Current edition approved Aug.1,2014.Published September
14、2014.Originallyapproved in 2003.Last previous edition approved in 2011 as F226307(2011).DOI:10.1520/F2263-14.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standard
15、s Document Summary page onthe ASTM website.3Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.4Available from Plastics Pipe Institute(PPI),105 Decker Court,Suite 825,Irving,TX 75062,http:/www.plasticpipe.org.5Available from Americ
16、an Water Works Association(AWWA),6666 W.QuincyAve.,Denver,CO 80235,http:/www.awwa.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.1.1 Definitions are in accordance with Terminology F412and abbreviations are in accordance with Terminology D1600,unless otherwise indicated.3.1.2 brittle failure(Stage II),nfailure in the pipe wallthat is characterized by little or no m
