ASTM_F_1140_-_F_1140M_-_13.pdf

Designation:F1140/F1140M13Standard Test Methods forInternal Pressurization Failure Resistance of UnrestrainedPackages1This standard is issued under the fixed designation F1140/F1140M;the number immediately following the designation indicates the yearof original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 These test methods explain the procedure for determin-ing the ability of packages to withstand internal pressurization.1.2 The burst test increasingly pressurizes the package untilthe package fails.1.3 The creep test maintains a specified pressure for aspecified time or until the package fails.1.4 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in non-conformancewith the standard.1.5 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:2E171 Practice for Conditioning and Testing Flexible BarrierPackagingF17 Terminology Relating to Flexible Barrier PackagingF88 Test Method for Seal Strength of Flexible BarrierMaterials3.Terminology3.1 DefinitionsFor definitions and terms used in this testmethod,refer to Terminology F17 for standardized terminol-ogy for flexible barrier packaging.3.2 Definitions of Terms Specific to This Standard:3.2.1 package failurerefers to rupture of seal or material.3.2.2 restrainta mechanism that prevents package move-ment during inflation.4.Summary of Test Method4.1 Test Method A(Burst Test)Packages are tested in anapparatus that internally pressurizes the package until thepackage fails.The pneumatic supply and pressurization equip-ment need the capability to maintain an increasing pressureuntil the package bursts.The test measure is the maximumpressure detected before the package fails.4.2 Test Method B1(Creep Test)Packages are tested inapparatus that internally pressurizes the package to a specifiedpressure and maintains that internal package pressure for aspecific time.The test measure is pass/fail.4.3 Test Method B2(Creep to Failure)Packages are creep-tested and held until the package fails.Test setup is similar tothat of the Creep Test except the pressure setting will need tobe higher to ensure the package fails in a reasonable amount oftime(that is,about 15 s).The test measure is the time untilfailure.5.Significance and Use5.1 These test methods provide a rapid means of evaluatingtendencies for package failure when the package is exposed toa pressure differential.Pressure differentials may occur duringprocesses such as sterilization and transportation.5.2 These test methods are frequently used to quicklyevaluate packages during the manufacturing process and atvarious stages of the packages life cycle.5.3 If correlations between pieces of test equipment are tobe made,it is important that all parameters of the test methodbe exactly the same.Typical parameters may include,but arenot limited to,package size,material,seal configuration,testequipment,rate of air flow into the package,sensitivity(machine response to pressure drop),and position of test article(see Fig.1).5.4 These test methods do not necessarily provide correla-tion with actual package seal strength as typically measuredusing Test Method F88(or equivalent).1These test methods are under the jurisdiction of ASTM Committee F02 onFlexible Barrier Packaging and are the direct responsibility of Subcommittee F02.20on Physical Properties.Current edition approved April 1,2013.Published June 2013.Originallyapproved in 1988.Last previous edition approved in 2012 as F1140 07(2012).DOI:10.1520/F1140_F1140M-13.2For 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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 6.Apparatus6.1 Packages are tested under unrestrained conditions asfollows:6.1.1 Open Package Tester,used to test flexible packageswith one opened side.6.1.2 Closed Package Tester,internally pressurizes the com-pletely sealed package through a puncture.6.2 The test apparatus for both open and closed packagetesting shall include the following:6.2.1 Means of Measuring the Pressure Inside the Package,6.2.2 Timer,and6.2.3 Pressure Regulator,intended to maintain steady orincreasing pressure in the package.NOTE1If the pressure regulator cann