ASTM_D_882_-_12.pdf

Designation:D88212Standard Test Method forTensile Properties of Thin Plastic Sheeting1This standard is issued under the fixed designation D882;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.This standard has been approved for use by agencies of the U.S.Department of Defense.These test methods have been approved for use by agencies of the Department of Defense to replace Method 1013 of Federal TestMethod Standard 406.1.Scope*1.1 This test method covers the determination of tensileproperties of plastics in the form of thin sheeting and films(lessthan 1.0 mm(0.04 in.)in thickness).NOTE1Film is defined in Terminology D883 as an optional term forsheeting having a nominal thickness no greater than 0.25 mm(0.010 in.).NOTE2Tensile properties of plastics 1.0 mm(0.04 in.)or greater inthickness shall be determined according to Test Method D638.1.2 This test method can be used to test all plastics withinthe thickness range described and the capacity of the machineemployed.1.3 Specimen extension can be measured by grip separation,extension indicators,or displacement of gage marks.1.4 The procedure for determining the tensile modulus ofelasticity is included at one strain rate.NOTE3The modulus determination is generally based on the use ofgrip separation as a measure of extension;however,the desirability ofusing extensometers,as described in 5.2,is recognized and provision forthe use of such instrumentation is incorporated in the procedure.1.5 Test data obtained by this test method is relevant andappropriate for use in engineering design.1.6 The values stated in SI units are to be regarded as thestandard.The values in parentheses are provided for informa-tion only.1.7 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.NOTE4This test method is similar to ISO 527-3,but is not consideredtechnically equivalent.ISO 527-3 allows for additional specimenconfigurations,specifies different test speeds,and requires an extensom-eter or gage marks on the specimen.2.Referenced Documents2.1 ASTM Standards:2D618 Practice for Conditioning Plastics for TestingD638 Test Method for Tensile Properties of PlasticsD883 Terminology Relating to PlasticsD4000 Classification System for Specifying Plastic Materi-alsD5947 Test Methods for Physical Dimensions of SolidPlastics SpecimensD6287 Practice for Cutting Film and Sheeting Test Speci-mensD6988 Guide for Determination of Thickness of Plastic FilmTest SpecimensE4 Practices for Force Verification of Testing MachinesE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test Method2.2 ISO Standard:ISO 527-3 PlasticsDetermination of Tensile PropertiesPart 3:Test Conditions for Films and Sheets33.Terminology3.1 Definitions:3.1.1 Definitions of terms and symbols relating to tensiontesting of plastics appear in the Annex to Test Method D638.3.1.2 line gripsgrips having faces designed to concentratethe entire gripping force along a single line perpendicular to thedirection of testing stress.This is usually done by combiningone standard flat face and an opposing face from whichprotrudes a half-round.3.1.3 flat gripsgrips having flat faces and lined with thinrubber,crocus-cloth,emery cloth,or pressure-sensitive tape.3.1.4 tear failurea tensile failure characterized by fractureinitiating at one edge of the specimen and progressing across1These test methods are under the jurisdiction of ASTM Committee D20 onPlastics and are the direct responsibility of Subcommittee D20.19 on Film,Sheeting,and Molded Products.Current edition approved Aug.1,2012.Published September 2012.Originallyapproved in 1946.Last previous edition approved in 2010 as D882-10.DOI:10.1520/D0882-12.2For 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.3Available 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 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 the specimen at a rate slow enough to produce an anomalousload-deformation curve.4.Significance and Use4.1 Tensile properties determined by this test method are ofvalue for the identification and characterization of materials forcontrol and specification purposes.Tensile properties can varywith specimen thickness,method of preparation