1、Designation:D703004(Reapproved 2009)Standard Test Method forShort Term Creep Performance of Corrugated FiberboardContainers Under Constant Load Using a Compression TestMachine1This standard is issued under the fixed designation D7030;the number immediately following the designation indicates the yea
2、r 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.Scope1.1 This test method covers determining the resistance of anempty
3、paper corrugated shipping container to a verticallyapplied constant compression load for a specified time.The testmethod may also include palletized or unitized loads made ofsuch containers.The boxes are tested in the orientation thatthey are most likely to be stacked in a unitized or palletizedload
4、.1.2 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.3 This standard does not purport to address all of thesafety concerns,if any,associ
5、ated 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:2D642 Test Method for Determining Compressive Resistanceof Shi
6、pping Containers,Components,and Unit LoadsD644 Test Method for Moisture Content of Paper andPaperboard by Oven Drying(Withdrawn 2010)3D685 Practice for Conditioning Paper and Paper Productsfor Testing(Withdrawn 2010)3D996 Terminology of Packaging and Distribution Environ-mentsD4332 Practice for Cond
7、itioning Containers,Packages,orPackaging Components for TestingD4577 Test Method for Compression Resistance of a Con-tainer Under Constant LoadE4 Practices for Force Verification of Testing MachinesE122 Practice for Calculating Sample Size to Estimate,WithSpecified Precision,the Average for a Charac
8、teristic of aLot or Process3.Terminology3.1 DefinitionsGeneral definitions for the packaging anddistribution environments are found in Terminology D996.3.2 Definitions of Terms Specific to This Standard:3.2.1 constant loada load that is invariable or unchanging.3.2.2 creepcontinued deformation over
9、time while underconstant load.3.2.3 loadthe force applied to a body.3.2.4 static loadan imposed stationary force,constant inmagnitude and direction.4.Significance and Use4.1 In the distribution system,the packaged product may bestored for a period of time in a manner such that one or morecontainers
10、are stacked on one another.The bottom package isthus continually subjected to a constant compression load.4.2 This test method subjects an empty container to apredetermined static load and to specified atmosphericconditions,if required,over a short period of time using fixedplaten compression testin
11、g equipment.Deflection is measuredover time.4.3 Deflection versus time data can be used to predict timeto failure of corrugated shipping containers under constantload.5.Apparatus5.1 Fixed-Platen Testing MachineTwo platens,flat towithin 0.01 in.(0.25 mm)for each 12 in.(304.8 mm)in length,one of which
12、 is movable in the vertical direction so as tocompress the container between the platens.One is the loadmeasuring platen,and both should be of sufficient size so that1This test method is under the jurisdiction of ASTM Committee D10 onPackaging and is the direct responsibility of Subcommittee D10.21
13、on ShippingContainers and Systems-Application of Performance Test Methods.Current edition approved March 1,2009.Published March 2009.Originallyapproved in 2004.Last previous edition approved in 2004 as D7030 04.DOI:10.1520/D7030-04R09.2For referenced ASTM standards,visit the ASTM website,www.astm.or
14、g,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.Copyright ASTM International,100 Barr Harbor Dr
15、ive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 the test container does not extend beyond the edges of theplatens.Both platens are fixed in the horizontal directions sothat the lateral movement is not greater than 0.05 in.(1.3 mm),and are held parallel throughout the test to within 0.
16、04 in.(1mm)for each 12 in.(304.8 mm)in the length and widthdimensions.See Fig.1.The testing machine should be capableto maintain load within 1%of the required level for theduration of the test.5.2 Closing Equipment for Fiberboard BoxesSuitable ma-terials and application equipment for closing boxes should beused.If adhesives are used,sealing boards described in TestMethod D642 may be needed.5.3 Conditioning ApparatusAdequate facilities shall beprovided to maintain a conditioned atmosphere of temp