1、Designation: F1304 18Standard 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 paren
2、theses 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 composition tileand resilient flooring with
3、 a rigid polymeric core.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 thesafet
4、y concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety, health, and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.4 This international standard was developed in accor-dance
5、 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 (TBT) Committee.2. Referenced Documents2.1 ASTM Stand
6、ards: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 measu
7、res physical properties 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
8、) 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
9、 For 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 d
10、irection. 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
11、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 4 618 in./min. (102 6 3 mm/min.).Check the deflection measurin
12、g device 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 measure
13、ment of the deflectioneasier, and to maintain the specified deflection rate, since measurement ofthe load is not required. Electronic load cell machines usually havenegligible movement.1This test method is under the jurisdiction ofASTM Committee F06 on ResilientFloor Coverings and is the direct resp
14、onsibility of Subcommittee F06.20 on TestMethods - Products Construction/Materials.Current edition approved June 1, 2018. Published June 2018. Originallyapproved in 1990. Last previous edition approved in 2013 as F1304-08(2013). DOI:10.1520/F1304-18.2For referenced ASTM standards, visit the ASTM web
15、site, 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, htt
16、p:/www.ansi.org.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDeve
17、lopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.17. 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.
18、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 and the maximum flexural load.
19、Record the deflec-tion to the nearest 0.05 in. (1.3 mm) and the maximum flexuralload to the nearest 0.01 lb (0.004 kg). Remove the sample fromthe apparatus, and return the deflection frame to the zero pointdescribed in 6.1. Insert the next sample and test.9. Report9.1 Report the following informatio
20、n:9.1.1 Deflection for each specimen,9.1.2 Break load for each specimen,9.1.3 Direction of the long dimension of the sample (that is,machine direction or across machine direction), and9.1.4 Any deviation from the standard which may haveaffected the results.10. Precision and Bias10.1 A round robin wa
21、s conducted for Test Method F1304.There were six participating laboratories, ten material samplesand three determinations made on each sample. The minimumrequirements per Practice E691 are minimum six laboratories,four materials and two determinations.NOTE 2This round robin did not include an analys
22、is for maximumflexural load.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 obtaine
23、d by the same operator using thesame equipment on the same day, the means should be judgednot equivalent 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,
24、 the means should be judged 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.FIG. 1 Deflection FrameF1304 18210.2.3 These judgments will have an approximate 0.9
25、5 (95%) probability of being correct. Other materials may givesomewhat different results. For further information on themethodology used, consult Practice E691.10.3 BiasNo information can be presented on the bias ofthe test method because material having an accepted referencevalue is unavailable.10.
26、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 International takes no position respecting the validity of any patent rights asserted in connection with a
27、ny 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 entirely their own responsibility.This standard is subject to revision at any time by the responsible technica
28、l 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 should be addressed to ASTM International Headquarters. Your comments will receive careful consideration
29、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 Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor
30、 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.as
31、tm.org). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 1 Precision DataMaterials AverageASrBSRCrDRE1 MD 1.68278 0.06852 0.32643 0.19184 0.914011 AMD 1.37278 0.16979 0.33205 0.4754
32、0 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 0.15013 0.36584 0.42036 1.024344 AMD 1.98833 0.10127 0.28642 0.28356 0.801975 MD 2.00833 0.08343 0.3
33、6727 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 the average.Cr =2.83Sr.DSR = between-laboratory standard deviation of the average.ER =2.83SR.F1304 183
