ASTM_D_1623_-_17.pdf

Designation:D162317Standard Test Method forTensile and Tensile Adhesion Properties of Rigid CellularPlastics1This standard is issued under the fixed designation D1623;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.1.Scope*1.1 This test method covers the determination of the tensileand tensile adhesion properties of rigid cellular materials in theform of test specimens of standard shape under definedconditions of temperature,humidity,and testing machinespeed.1.2 Tensile properties shall be measured using any of threetypes of specimens:1.2.1 Type A shall be the preferred specimen in those caseswhere enough sample material exists to form the necessaryspecimen.1.2.2 Type B shall be the preferred specimen when onlysmaller specimens are available,as in sandwich panels,etc.1.2.3 Type C shall be the preferred specimen for the deter-mination of tensile adhesive properties of a cellular plastic to asubstrate as in a sandwich panel(top and bottom substrate)orthe bonding strength of a cellular plastic to a single substrate.1.3 The values stated in SI units are to be 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.NOTE1There is no known ISO equivalent to this test method.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision 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:2D638 Test Method for Tensile Properties of PlasticsD883 Terminology Relating to PlasticsE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test Method3.Terminology3.1 Definitions of terms applying to this test method appearin Test Method D638,Annex A2.4.Apparatus4.1 Testing MachineA testing machine that is capable ofapplying a constant rate of crosshead movement,comprisingessentially the following:4.1.1 GripsGrips for holding the test specimen shall bethe self-aligning type;that is,they must be attached to the fixedand movable members of the testing machine in such a waythat they will move freely into alignment as soon as any loadis applied,so that the long axis of the test specimen willcoincide with the direction of the applied pull through thecenter line of the grip assembly.Universal-type joints imme-diately above and below the specimen grips are recommended.The test specimen shall be held in such a way that slippagerelative to the grips is prevented,insofar as possible.For TypeA specimens,use a grip assembly like the one shown in Fig.1and Fig.2.For Type B specimens,one suitable grip assemblyis shown in Fig.3 and Fig.4.For Type C specimen,a suitablegrip assembly is shown in Fig.5.4.1.2 Load IndicatorA load cell or suitable load-indicating mechanism,capable of showing the total tensile load1This test method is under the jurisdiction of ASTM Committee D20 on Plasticsand is the direct responsibility of Subcommittee D20.22 on Cellular Materials-Plastics and Elastomers.Current edition approved May 1,2017.Published June 2017.Originallyapproved in 1959.Last previous edition approved in 2009 as D1623 09.DOI:10.1520/D1623-17.2For 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.*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 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.1 exerted on the test specimen when held in the grips,shall beused.Choose an indicator that will permit precision to within61%.4.1.3 Extension IndicatorIf measurement of the extensionis desired,use a suitable instrument for determining thedistance between two fixed points on the test specimen,orMetric Equivalentsin.181412916111611.130112221421233516mm3.186.3512.714.317.525.428.738.150.857.263.576.284.1FIG.1 Details of Grips for Tension Test on Type A SpecimenFIG.2 Grip Assembly for Type A SpecimenD1623 172 similarly by grip separation or extensometer,at any time duringthe test,shall be used.4.2 Sp