ASTM_D_2463_-_15.pdf

Designation:D246315Standard Test Method forDrop Impact Resistance of Blow-Molded ThermoplasticContainers1This standard is issued under the fixed designation D2463;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 test method provides a means to assess the dropimpact resistance of water-filled,blow-molded thermoplasticcontainers,which is a summation of the effects of material,manufacturing conditions,container design,and perhaps otherfactors.1.2 Two procedures are provided as follows:1.2.1 Procedure A,Static Drop Height MethodThis pro-cedure is particularly useful for quality control since it is quick.1.2.2 Procedure B,Bruceton Staircase MethodThis pro-cedure is used to determine the mean failure height and thestandard deviation of the distribution.1.3 The values stated in SI units are to be regarded asstandard.The inch-pound units given in parentheses are forinformation only.NOTE1There is no known ISO equivalent to this standard.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 and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2B177 Guide for Engineering Chromium ElectroplatingD883 Terminology Relating to PlasticsE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test Method2.2 Society of Plastics Industry Standard:PBI-4 Test for Drop Impact Resistance of Plastic Bottles33.Terminology3.1 Definitions:3.1.1 For definitions of terms found in this test method referto Terminology D883.3.2 Definitions of Terms Specific to This Standard:3.2.1 failure,nany rupture visible to an observer with theunaided eye and normal eyesight is considered a failure;thisincludes also any evidence of contained liquid on the outside ofthe container through any aperture other than the moldedopening.4.Summary of Test Method4.1 The drop impact resistance is determined by droppingconditioned blow-molded containers filled with water from aplatform onto a prescribed surface.Data developed with awater-filled container are not always representative of whatmight be expected with a carbonated liquid,an aerosol pack,aproduct of high specific gravity,or a powder of low bulkdensity.4.1.1 Procedure A consists of dropping at least 20 contain-ers from a fixed height and reporting the percent failures.4.1.2 Procedure B consists of dropping at least 20 testcontainers from varying heights above and below the meanfailure height of the set.A mean failure height and standarddeviation are then calculated from the data.5.Significance and Use5.1 These procedures provide a means to assess the dropimpact resistance of the group or lot of blown containers fromwhich the test specimens were selected.5.2 It is acceptable to use these procedures for routineinspection purposes.5.3 These procedures will evaluate the combined effect ofconstruction,materials,and processing conditions on theimpact resistance of the blown containers.1This test method is under the jurisdiction of ASTM Committee D20 on Plasticsand is the direct responsibility of Subcommittee D20.19 on Film,Sheeting,andMolded Products.Current edition approved April 1,2015.Published April 2015.Originallyapproved in 1965.Last previous edition approved in 2010 as D2463-10b.DOI:10.1520/D2463-15.2For 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 the Society of the Plastics Industry,Inc.,1295 K Street,N.W.,Washington,DC 20005.*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 5.4 Before proceeding with this test method,reference thespecification of the material being tested.Any test specimenpreparation,conditioning,dimensions,or testing parameters,orcombination thereof,covered in the materials specificationshall take precedence over those mentioned in this test method.If there are no material specifications,then the default condi-tions apply.6.Apparatus6.1 Drop Testing Machine(see Fig.1),having the followingfeatures:6.1.1 A platform(see Fig.2)upon which to set the testspecimens,which can be raised or lowered either manually orby means of an electric motor.6.1.2 The platform shall be adjustable to make it suitable forbeing leveled but shall also be stable so that it will not tilt underthe weight of the test specimen.6.1.3 The platform shall be spring-loaded so that uponrelease it will move