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ASTM_F_152_-_95_2017.pdf

1、Designation:F15295(Reapproved 2017)Standard Test Methods forTension Testing of Nonmetallic Gasket Materials1This standard is issued under the fixed designation F152;the number immediately following the designation indicates the year of originaladoption or,in the case of revision,the year of last rev

2、ision.Anumber in parentheses indicates the year of last reapproval.Asuperscriptepsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope1.1 These test methods cover the determination of te

3、nsilestrength of certain nonmetallic gasketing materials at roomtemperature.The types of materials covered are those contain-ing asbestos and other inorganic fibers(Type 1),cork(Type 2),cellulose or other organic fiber(Type 3),and flexible graphite(Type 5)as described in Classification F104.These te

4、stmethods are not applicable to the testing of vulcanized rubber,a method for which is described in Test Methods D412 nor forrubber O-rings,a method for which is described in TestMethods D1414.1.2 The values stated in SI units are to be regarded as thestandard.The values in parentheses are for infor

5、mation only.1.3 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.1.4 Th

6、is international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(

7、TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D412 Test Methods for Vulcanized Rubber and Thermoplas-tic ElastomersTensionD1414 Test Methods for Rubber O-RingsE4 Practices for Force Verification of Testing MachinesE691 Practice for Conducting an Interlaboratory Study toDetermine the Precis

8、ion of a Test MethodF104 Classification System for Nonmetallic Gasket Materi-als3.Terminology3.1 Definitions:3.1.1 samplea unit or section of a unit taken from asampling lot.3.1.2 specimena piece of material appropriately shapedand prepared so that it is ready for a test.3.1.3 tensile strengththe ma

9、ximum tensile stress appliedduring stretching a specimen to rupture.3.1.4 tensile stressthe applied force per unit or originalcross-sectional area of the specimen.4.Significance and Use4.1 These test methods are described in order to standardizeprocedures for determining the tensile strength of nonm

10、etallicgasket materials.The measurement of this property character-izes various classes and grades of materials of a given type andin so doing,it will give the manufacturer a measurement of thequality of his product.It also will aid the purchaser of thegasketing materials to be able to determine whe

11、ther the gasketmaterial that he has approved for a given application is beingmanufactured in acceptable quality.4.2 The measurement of this property should not be mis-construed as to give the purchaser of the gasket material anindication of the performance of that material in application.4.3 The pro

12、perty may be useful in establishing materialspecifications.4.4 Various procedures are given for the different types ofmaterials,and in order to compare the results from onelaboratory to another,it is imperative that the applicableprocedure be selected.4.5 Various types of tension-testing apparatus a

13、re allowed tobe used.These types of equipment can produce differentindicated results.Laboratories having different equipment mayhave to establish correlations between each other;otherwise,misinterpretation of the test data could result.1These test methods are under the jurisdiction of ASTM Committee

14、 F03 onGaskets and are the direct responsibility of Subcommittee F03.20 on MechanicalTest Methods.Current edition approved May 1,2017.Published July 2017.Originally approvedin 1972.Last previous edition approved in 2009 as F152 95(2009).DOI:10.1520/F0152-95R17.2For referenced ASTM standards,visit th

15、e 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 Sta

16、tesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 5.Apparatus5.1 DiesThe inside faces of the dies shall be polished andbe perpendicular to the plane formed by the cutting edges fora depth of at least 5 mm(0.2 in.).The dies shall be

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