1、Designation:F282410(Reapproved 2015)Standard Test Method forMechanical Seal Strength Testing for Round Cups and BowlContainers with Flexible Peelable Lids1This standard is issued under the fixed designation F2824;the number immediately following the designation indicates the year oforiginal adoption
2、 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 describes a method for the measure-ment of mechanical seal strengt
3、h while separating the entire lid(cover/membrane)from a rigid or semi-rigid round container.1.2 This test method differs from Test Method F88.TestMethod F88 tests a portion of the seal where as this test methodtests the force required to separate the entire lid(cover/membrane)from the container.1.3
4、This test method is used to determine the continuous andmaximum forces required to separate the lid(cover/membrane)from the container.1.4 This test method uses an angle of pull of 45,howeverother angles of pull may be used provided results are docu-mented noting the used angle of pull and said proce
5、dure isvalidated.1.5 Typical examples of container shapes that could betested using this or a similar method include oval,rectangular,and circular with single or multiple cavities having a sealed lid(cover/membrane).Examples of products packaged in thesetypes of containers are:ready meals,creamers,c
6、offee,yogurts,household fresheners,chemical and pharmaceutical products,and numerous others not mentioned.However,this testmethod,described within,is specifically for round containers.1.6 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathemat
7、icalconversions to SI units that are provided for information onlyand are not considered standard.1.7 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 pr
8、actices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2D4332 Practice for Conditioning Containers,Packages,orPackaging Components for TestingE177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsE691 Practice for C
9、onducting an Interlaboratory Study toDetermine the Precision of a Test MethodF17 Terminology Relating to Flexible Barrier PackagingF88 Test Method for Seal Strength of Flexible BarrierMaterials2.2 Other Standard:ANSI/AAMI/ISO 116071 Packaging for Terminally Steril-ized Medical DevicesPart 1:Requirem
10、ents forMaterials,Sterile Barrier Systems,and Packaging Sys-tems33.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 average seal strengththe sum of the individualforces recorded divided by the total number of those measure-ments.The calculation can be expressed as the averagebetwe
11、en the peaks or within the peaks(see Fig.1).3.1.2 flexibleSee Terminology F17.3.1.3 grip separation ratea function of the test equipmentdesign and angle of peel to achieve the correct peel rate.It isthe actual peel rate of separating the lid(cover/membrane)from the container.For this test method,the
12、 actual separationrate is 12 in./min(300 mm/min).3.1.4 maximum seal strengththe maximum force mea-sured when separating progressively,under the conditions ofthe test.3.1.5 peel anglethe angle of the lid(cover/membrane)relative to the container seal surface at all points of removal of1This test metho
13、d 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 1,2015.Published May 2015.Originallyapproved in 2010.Last previous edition approved in 2010 as F2824101.DOI:10.15
14、20/F282410R15.2For 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 American National Standards Institut
15、e(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 the lid(cover/membrane)from the container seal surface.Thepreferred angle for this test method is 45(Fig.2)but otherangle
16、s can be used.3.1.6 peel linethe line of direction of peel,normally 90 tothe line beginning at the starting peel point and bisects thecontainer area evenly(see Fig.2).3.1.7 seal areathe total area of the container which issealed to the lid(cover/membrane)and requires a force toseparate them.3.1.8 starting peel pointthe extended tab provided by thedesign of the lid(cover/membrane).3.1.9 workthe energy required to separate the lid(cover/membrane)from the test container.Typically,this calculationis