ASTM_F_1304_-_08_2013.pdf

Designation:F130408(Reapproved 2013)Standard Test Method forDeflection of Resilient Floor Tile1This standard is issued under the fixed designation F1304;the number immediately following the designation indicates the year 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 is used to determine the deflection ofrelatively rigid resilient floor tile such as vinyl compositiontile.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,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:2E691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test MethodF141 Terminology Relating to Resilient Floor Coverings2.2 ANSI Standards:ANSI/ASQC Z1.4 Sampling Procedures and Tables for In-spection by Attributes33.Significance and Use3.1 This test method measures a physical property associ-ated with resilient floor tiles ability to conform to an unevensubfloor without breaking or cracking.4.Apparatus4.1 Deflection Frame,as shown in Fig.1.4.2 Tensile Test Apparatus,capable of holding the deflectionframe and having a movement of at least 2.5 in.(64 mm)at arate of 4 in.(100 mm)/min at a load of 10 lb(4.54 kg).4.3 Measuring Device,for measuring the deflection of thespecimen at break or pull out from between the support bars toa tolerance of 0.05 in.(1.3 mm).4.4 Cutting Device,for cutting the samples to 2 by 9 in.(50by 229 mm).5.Sampling5.1 For sampling,refer to ANSI/ASQC Z1.4most recentversion.5.2 Specimens for test shall be 2 6132by 9 6132in.(506 0.8 by 229 6 0.8 mm).5.3 Six samples shall be taken from each test unit,three cutwith the long dimension in the machine direction,and threewith the long dimension across the machine direction.Thesesamples are tested for deflection.6.Preparation of Apparatus6.1 Install the deflection frame in the tensile tester.Check tosee that the three bars are parallel,and that the center bar isaccurately centered between the two outside bars.Position theframe so that the test sample can be placed with the wearingsurface touching the center bar,and the back surface touchingthe two outer bars,without deflection of the sample.This is thezero point for measuring deflection.Check that the deflectionspeed of the tester is 4 618in./min.(102 6 3 mm/min.).Check the deflection measuring device to see that it accuratelymeasures the relative movement between the center bar and theframe holding the two outer bars.NOTE1If a pendulum-type weighing system is used on the testmachine,which has appreciable movement of the attached jaw,themechanism may be locked in place to make measurement of the deflectioneasier,and to maintain the specified deflection rate,since measurement ofthe load is not required.Electronic load cell machines usually havenegligible movement.7.Conditioning7.1 After cutting the samples to size,condition the samplesat 73.4 6 1.8F(23 6 1C)and 50 6 5%relative humidity for3 h before testing.1This test method is under the jurisdiction ofASTM Committee F06 on ResilientFloor Coverings and is the direct responsibility of Subcommittee F06.20 on TestMethods-Products Construction/Materials.Current edition approved Dec.1,2013.Published January 2014.Originallyapproved in 1990.Last previous edition approved in 2008 as F1304-08.DOI:10.1520/F1304-08R13.2For 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 Institute(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 8.Procedure8.1 Insert a specimen in the frame as described in 6.1 withthe wearing surface against the center bar,and the back againstthe two outer bars.Start the machine and record the deflectionat the point where the sample breaks,or pulls free from theouter bars.Record the deflection to the nearest 0.05 in.(1.3mm).Remove the sample from the apparatus,and return thedeflection frame to the zero point described in 6.1.Insert thenext sample and test.9.Report9.1 Report the following information:9.1.1 Deflection for each specimen,and9.1.2 Direction of the long dimension of the sample(that is,machine direction or across machine direction).10.Precision and Bias10.1 A r