ASTM F1304-2008 Standard Test Method for Deflection of Resilient Floor Tile《弹性地板砖挠曲性试验方法》.pdf

1、Designation: F 1304 08Standard Test Method forDeflection of Resilient Floor Tile1This standard is issued under the fixed designation F 1304; 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 par

2、entheses 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 This standard does no

3、t 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 Standard

4、s:2E 691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test MethodF 141 Terminology Relating to Resilient Floor Coverings2.2 ANSI Standards:ANSI/ASQC Z1.4 Sampling Procedures and Tables forInspection by Attributes33. Significance and Use3.1 This test method measures

5、 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) a

6、t 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 Fo

7、r sampling, refer to ANSI/ASQC Z1.4most recentversion.5.2 Specimens for test shall be 2 6132 by 9 6132 in. (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 dire

8、ction. 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

9、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 4 618 in./min. (102 6 3 mm/min.).Check the deflection measuring d

10、evice to see that it accuratelymeasures the relative movement between the center bar and theframe holding the two outer bars.NOTE 1If 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 measuremen

11、t 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 % relat

12、ive humidity for3 h before testing.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 b

13、ars. Record the deflection to the nearest 0.05 in. (1.31This 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, 2008. Publishe

14、d January 2009. Originallyapproved in 1990. Last previous edition approved in 2003 as F1304-03.2For 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 Documen

15、t 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.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.mm). Remove the sample f

16、rom 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 d

17、irection).10. Precision and Bias10.1 A round robin was conducted for Test Method F 1304.There were six participating laboratories, ten material samplesand three determinations made on each sample. The minimumrequirements per Practice E 691 are minimum six laboratories,four materials and two determin

18、ations.10.2 Precision Statement for Test Method: InchesDeflectionPrecision, characterized by repeatability, Sr, r, andreproducibility, SR, R, has been determined for the materials asshown in Table 1.10.2.1 RepeatabilityIn comparing two average values forthe same material obtained by the same operato

19、r using thesame equipment on the same day, the means should be judgednot equialent if they differ by more than the r value for thatmaterial and condition.10.2.2 ReproducibilityIn comparing two average valuesfor the same material obtained by different equipment ondifferent days, the means should be j

20、udged not equivalent ifthey differ by more than the R values for that material andcondition. (This applies between different laboratories orbetween different equipment within the same laboratory.10.2.3 These judgements will have an approximate 0.95 (95%) probability of being correct. Other materials

21、 may givesomewhat different results. For further information on themethodology used, consult Practice E 691.10.3 BiasNo information can be presented on the bias ofthe test method because material having an accepted referencevalue is unavailable.FIG. 1 Deflection FrameTABLE 1 Precision DataMaterials

22、AverageASrBSRCrDRE1 MD 1.68278 0.06852 0.32643 0.19184 0.914011 AMD 1.37278 0.16979 0.33205 0.47540 0.929752 MD 2.08000 0.07990 0.21821 0.22371 0.610992 AMD 1.96556 0.14922 0.23402 0.41782 0.655273 MD 2.00889 0.06729 0.24824 0.18841 0.695063 AMD 2.05111 0.09826 0.27306 0.27514 0.764584 MD 2.04389 0.

23、15013 0.36584 0.42036 1.024344 AMD 1.98833 0.10127 0.28642 0.28356 0.801975 MD 2.00833 0.08343 0.36727 0.23361 1.028365AMD 1.81222 0.18404 0.30865 0.51532 0.86422AAverage is the numerical average of test results for all replicates from alllaboratories.BSr = within-laboratory standard deviation of th

24、e average.Cr = 2.83 Sr.DSR = between-laboratory standard deviation of the average.ER=2.83SR.F130408210.4 Asynopsis of the round robin test data will be availablefrom ASTM International as a research report.11. Keywords11.1 cutting device; deflection; resilient; tensile; test appa-ratus; tileASTM Int

25、ernational takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirel

26、y their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand sh

27、ould be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on St

28、andards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).F1304083