1、Designation:D149913(Reapproved 2021)Standard Practice forFiltered Open-Flame Carbon-Arc Exposures of Plastics1This standard is issued under the fixed designation D1499;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last
2、revision.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.Scope1.1 This practice covers specific procedures an
3、d test condi-tions that are applicable for exposure of plastics in filteredopen-flame carbon-arc devices conducted in accordance withPractices G151 and G152.This practice also covers thepreparation of test specimens,the test condition suited forplastics,and the evaluation of test results.1.2 This pr
4、actice does not cover enclosed carbon-arc expo-sures of plastics,which had been allowed in Practice D1499.Enclosed carbon-arc exposures of plastics are described inPractice D6360,and in G153,which gives requirements forexposing nonmetallic materials in enclosed carbon-arc devices.1.3 The values stat
5、ed in SI units are to be regarded asstandard.The values in parentheses are given for informationonly.1.4 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety,health,and
6、 environmental practices and deter-mine the applicability of regulatory limitations prior to use.NOTE1This practice is technically equivalent to ISO 4892-4.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the D
7、ecision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D3980 Practice for Interlaboratory Testing of Paint andRelated Materials(Withdrawn
8、 1998)3D5870 Practice for Calculating Property Retention Index ofPlasticsD6360 Practice for Enclosed Carbon-Arc Exposures of Plas-ticsE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test MethodG113 Terminology Relating to Natural and Artificial Weath-ering Tests
9、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 Test Devices that
10、Use Laboratory Light SourcesG152 Practice for Operating Open Flame Carbon Arc LightApparatus for Exposure of Nonmetallic MaterialsG153 Practice for Operating Enclosed Carbon Arc LightApparatus for Exposure of Nonmetallic MaterialsG169 Guide for Application of Basic Statistical Methods toWeathering T
11、ests2.2 ISO Standard:4ISO 4892-4 PlasticsMethods of Exposure to LaboratoryLight SourcesPart 4,Open-Flame Carbon Arc Lamp3.Terminology3.1 The definitions in Terminology G113 are applicable tothis practice.4.Significance and Use4.1 The ability of a plastic material to resist deterioration ofits electr
12、ical,mechanical,and optical properties caused byexposure to light,heat,and water can be very significant formany applications.This practice is intended to induce propertychanges associated with end-use conditions,including theeffects of sunlight,moisture,and heat.The exposure used inthis practice is
13、 not intended to simulate the deterioration caused1This 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 July 1,2021.Published July 2021.Originally approvedin 1950.Last previo
14、us edition approved in 2013 as D1499-13.DOI:10.1520/D1499-13R21.2For 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.3T
15、he last approved version 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.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100
16、 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1by localized weather phenomena,such as,atmosphericpollution,biological attack,and saltwater exposure.4.2 Caut