ASTM_F_2054_-_F_2054M_-_13.pdf

Designation:F2054/F2054M13Standard Test Method forBurst Testing of Flexible Package Seals Using Internal AirPressurization Within Restraining Plates1This standard is issued under the fixed designation F2054/F2054M;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 cover the procedure for determiningthe minimum burst strength of a seal placed around theperimeter of a flexible package as it is internally pressurizedand enclosed within restraining plates.1.2 The test methods described herein are functionallysimilar to Test Methods F1140 with the exception of the use ofrestraining plates.Test Methods F1140 describes methods ofburst testing that do not include the use of restraining platesand are suitable to determine a packages general ability towithstand pressurization stresses.Under Test Methods F1140the stresses are not distributed uniformly to all areas of thepackage seal.Under unrestrained conditions the stress on thepackage is highest at the middle of the pouch where it inflatesto the packages maximum diameter;therefore,Test MethodsF1140 may not reliably detect the weakest area of the seal.1.3 The burst test internally and increasingly pressurizes apackage until an area of the package seal around the perimeter“bursts”open in response to pressurization.By placing thepackage within restraining plates during pressurization,thedimensional stability of the package is maintained in a mannerthat results in stresses applied more uniformly along theperimeter of the package,where seals are normally placed.This allows the test to have a higher probability of detecting theweakest area of the seal and provide a measurement of thepressure required to“burst”open the package.1.4 This test only applies to flexible packages with sealsplaced around the perimeter of a flexible package(oftenreferred to as a pouch).In particular it is intended as applicableto packages with seals that have a peelable seal feature(peeledopen by end user to remove contents of package).1.4.1 Porous barrier materials failure to reach adequatepressure to burst the package seals may be due to insufficientvolume flow.See Appendix X4 for information.1.5 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.1.6 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.Particular cautionis advised where users of this procedure may be required todesign and fabricate restraining plate fixtures.Reference Ap-pendix X3 for further information regarding calculation ofstress factors and structural design considerations.2.Referenced Documents2.1 ASTM Standards:2E171 Practice for Conditioning and Testing Flexible BarrierPackagingE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test MethodF17 Terminology Relating to Flexible Barrier PackagingF88 Test Method for Seal Strength of Flexible BarrierMaterialsF1140 Test Methods for Internal Pressurization Failure Re-sistance of Unrestrained Packages3.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 restraining plates,nrefers to plates that are rigid innature and configured to contact and limit the packagesexpandable surface area as the package is pressurized.1This test method is under the jurisdiction ofASTM Committee F02 on FlexibleBarrier Packaging and is the direct responsibility of Subcommittee F02.20 onPhysical Properties.Current edition approved April 1,2013.Published June 2013.Originallyapproved in 2000.Last previous edition approved in 2012 as F2054 07(2012).DOI:10.1520/F2054_F2054M-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 4.Summary of Test Method4.1 Packages are tested in an apparatus that internallypressurizes the package until an area of the package ruptures(burst).For most applications the rupture(burst)will occur atone or more areas of the seal.The pneumatic supply andpressuri