ASTM_D_5071_-_06_2013.pdf

Designation:D507106(Reapproved 2013)Standard Practice forExposure of Photodegradable Plastics in a Xenon ArcApparatus1This standard is issued under the fixed designation D5071;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the 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 practice covers specific procedures and test condi-tions that are applicable for xenon arc exposure of photode-gradable plastics conducted in accordance with Practices G151and G155.This practice also covers the preparation of testspecimens,the test conditions best suited for photodegradableplastics,and the evaluation of test results.1.2 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 and health practices and determine the applica-bility of regulatory limitations prior to use.NOTE1This practice is technically equivalent to ISO 4892-2 andPractice D2565 which cover xenon arc exposures of plastics intended forlong term use in outdoor applications.2.Referenced Documents2.1 ASTM Standards:2D882 Test Method for Tensile Properties of Thin PlasticSheetingD883 Terminology Relating to PlasticsD1293 Test Methods for pH of WaterD2565 Practice for Xenon-Arc Exposure of Plastics In-tended for Outdoor ApplicationsD3593 Test Method for Molecular Weight Averages/Distri-bution of Certain Polymers by Liquid Size-ExclusionChromatography(Gel Permeation Chromatography GPC)Using Universal Calibration(Withdrawn 1993)3D3826 Practice for Determining Degradation End Point inDegradable Polyethylene and Polypropylene Using a Ten-sile TestD3890 Test Method for Number of Strokes to Prime aMechanical Pump DispenserD5870 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 Weath-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 Test 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 Other Standards:ISO 4892-2 PlasticsMethod of Exposure to LaboratoryLight SourcesPart 2,Xenon Arc Sources4Publication C.I.E.No.85(1989)5DIN 53384 Testing of Plastics:Artificial Weathering orExposure in Laboratory Exposure Weathering or Exposurein Laboratory Exposure Apparatus to UV Radiation43.Terminology3.1 DefinitionsThe definitions given in TerminologiesD883 and G113 are applicable to this practice.4.Significance and Use4.1 Materials made from photodegradable plastics are in-tended to deteriorate rapidly when exposed to solar radiation,oxygen,heat,moisture and other degrading elements of theweather.This practice is used for evaluating the photodegrad-ability of plastics when exposed in an apparatus that produces1This practice is under the jurisdiction ofASTM Committee D20 on Plastics andis the direct responsibility of Subcommittee D20.96 on Environmentally DegradablePlastics and Biobased Products.Current edition approved April 1,2013.Published April 2013.Originallyapproved in 1991.Last previous edition approved in 2006 as D5071-06.DOI:10.1520/D5071-06R13.2For 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 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 10036.5Publication No.CIE 85,1stEd.,1989 Technical Report,“Solar SpectralIrradiance,”available from U.S.National Committee CIE,Mr.Thomas M.Lemons,TLA-Lighting Consultants,Inc.,72 Loring Ave.,Salem,MA 01970.*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 simulated daylight(1,2)6and controlled temperature and mois-ture.The exposure used in this practice is not intended tosimulate the deterioration caused by localized weather phe-nomena such as atmospheric pollution,biological attack,andsalt water exposure.There can be no positive correlation ofexposure results between this and other laboratory weatheringdevices.4.2 Variations in results can be expected when operatingconditions are varied within the accepted limits of this p