1、Designation:D256516Standard Practice forXenon-Arc Exposure of Plastics Intended for OutdoorApplications1This standard is issued under the fixed designation D2565;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revisi
2、on.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope*1.1 This practice covers specific procedures and tes
3、t condi-tions that are applicable for xenon-arc exposure of plasticsconducted in accordance with Practices G151 and G155.Thispractice also covers the preparation of test specimens,the testconditions best suited for plastics,and the evaluation of testresults.1.2 The values stated in SI units are to b
4、e regarded asstandard.The values given in parentheses are mathematicalconversions to inch-pound units that are provided for informa-tion only and are not considered standard.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility
5、 of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.NOTE1This practice and ISO 4892-2 address the same subject matter,but differ in technical content.2.Referenced Documents2.1 ASTM Standards:2D398
6、0 Practice for Interlaboratory Testing of Paint andRelated Materials(Withdrawn 1998)3D5870 Practice for Calculating Property Retention Index ofPlasticsE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test MethodG113 Terminology Relating to Natural and Artificial W
7、eath-ering Tests of Nonmetallic MaterialsG141 Guide for Addressing Variability in Exposure Testingof Nonmetallic MaterialsG147 Practice for Conditioning and Handling of Nonmetal-lic Materials for Natural and Artificial Weathering TestsG151 Practice for Exposing Nonmetallic Materials inAccel-erated T
8、est Devices that Use Laboratory Light SourcesG155 Practice for Operating Xenon Arc Light Apparatus forExposure of Non-Metallic MaterialsG169 Guide for Application of Basic Statistical Methods toWeathering Tests2.2 ISO Standard:4ISO 4892-2 PlasticsMethods of Exposure to LaboratoryLight SourcesPart 2,
9、Xenon Arc Lamp2.3 Society of Automotive Engineers Standards:5SAE J2412 Accelerated Exposure of Autmotive InteriorTrim Components Using a Controlled Irradiance Xenon-Arc ApparatusSAE J2527 Accelerated Exposure of Autmotive ExteriorMaterials Using a Controlled Irradiance Xenon-Arc Ap-paratus3.Terminol
10、ogy3.1 The definitions in Terminology G113 are applicable tothis practice.4.Significance and Use4.1 The ability of a plastic material to resist deterioration ofits electrical,mechanical,and optical properties caused byexposure to light,heat,and water can be very significant formany applications.This
11、 practice is intended to induce propertychanges associated with end-use conditions,including theeffects of daylight,moisture,and heat.The exposure used inthis practice is not intended to simulate the deterioration causedby localized weather phenomena,such as,atmosphericpollution,biological attack,an
12、d saltwater exposure.1This practice is under the jurisdiction ofASTM Committee D20 on Plastics andis the direct responsibility of Subcommittee D20.50 on Durability of Plastics.Current edition approved Sept.15,2016.Published October 2016.Originallyapproved in 1966.Last previous edition approved in 20
13、08 as D2565-99(08).DOI:10.1520/D2565-16.2For 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 standards Document Summary page onthe ASTM website.3The last approved version
14、 of this historical standard is referenced onwww.astm.org.4Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.5Available from SAE International(SAE),400 Commonwealth Dr.,Warrendale,PA 15096,http:/www.sae.org.*A Summary of Changes s
15、ection appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 4.2 CautionVariations in results are possible when oper-ating conditions are varied within the accepted limits of thispractice.Therefore,all referen
16、ces to the use of this practicemust be accompanied by a report prepared in accordance withSection 9 that describes the specific operating conditions used.Refer to Practice G151 for detailed information on the caveatsapplicable to use of results obtained in accordance with thispractice.NOTE2Additional information on sources of variability and onstrategies for addressing variability in the design,execution,and dataanalysis of laboratory-accelerated exposure tests is found in Guide G141.4.3 Reprodu
