1、Designation: F387 17Standard Test Method forMeasuring Thickness of Resilient Floor Covering With FoamLayer1This standard is issued under the fixed designation F387; the number immediately following the designation indicates the year of originaladoption or, in the case of revision, the year of last r
2、evision. A number in parentheses indicates the year of last reapproval. A superscriptepsilon () 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 This test method covers the determinat
3、ion of the thick-ness of resilient non-textile floor coverings containing a foamlayer as part of the construction.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
4、 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
5、 prior to use.1.4 This 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 Techni
6、calBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2E691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test MethodE177 Practice for Use of the Terms Precision and Bias inASTM Test Methods3. Significance and Use3.1 The overall thickness or
7、 caliper of resilient flooring is abasic physical property. However, conventional means ofmeasuring the thickness, such as a hand micrometer or regulardial micrometer, are not applicable for foam-layer products dueto the error from compressing the foam. This test methodminimizes this type of measuri
8、ng error and still retains theconvenience and speed of measurement.3.2 Measurement of the product thickness may be requiredfor quality control purposes or to ensure compliance withapplicable specifications.4. Apparatus4.1 The apparatus shall consist of a comparator stand havinga flat anvil base at l
9、east 6 in. (15 cm) square, equipped with athickness gage graduated to 0.001 in. (0.02 mm). The gageshall be equipped with a flat presser foot 0.250 6 0.01 in. (6.356 0.5 mm) in diameter. The foot shall exert a force of 1 6 0.1ozf (0.28 6 0.03 N) maximum.4.1.1 The contact surfaces of the anvil and th
10、ickness gagepresser foot shall be parallel within 0.0001 in. (0.003 mm).5. Test Specimen5.1 The specimen shall be approximately 2 by 4 in. (50 by100 mm).6. Calibration6.1 Calibrate the gage by means of gage blocks or shimstock of known thickness appropriate to the thickness of thematerial being meas
11、ured.7. Conditioning7.1 Condition the specimens at least 24 h at 73 6 3F(23 6 2C) and 50 6 10 % relative humidity and test in thesame environment.8. Procedure8.1 Level the instrument.8.2 Clean the anvil and the presser foot surfaces.8.3 Zero the instrument by allowing the presser foot to reston the
12、anvil.8.4 Select an unembossed flat area that is substantiallylarger, if possible, than the presser foot and at least 0.75 in. (19mm) from any edge of the specimen.1This test method is under the jurisdiction ofASTM Committee F06 on ResilientFloor Coverings and is the direct responsibility of Subcomm
13、ittee F06.20 on TestMethods - Products Construction/Materials.Current edition approved May 1, 2017. Published May 2017. Originallyapproved in 1973. Last previous edition approved in 2011 as F387 11. DOI:10.1520/F0387-17.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact
14、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 StatesThis international standard
15、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.18.5 Raise
16、the presser foot and insert the test specimen withthe wearing surface down.8.6 Lower the foot slowly to rest on the specimen withoutimpacting it.8.6.1 Hold the specimen flat taking precautions not tocompress it in the vicinity of the foot.8.7 Upon contact with the surface, take a reading from thegag
17、e to the nearest 0.001 in. (0.02 mm). Take all measurementsat least 0.75 in. (19 mm) from any edge of the specimen.8.8 Take five measurements per specimen distributed evenlyacross the length of the specimen unless otherwise specified.9. Calculation9.1 Calculate the average thickness of each specimen
18、.10. Report10.1 Report the average thickness of each specimen to thenearest 0.001 in. (0.02 mm).10.2 Report the minimum and maximum thickness, or bothif required by specification.11. Precision and Bias11.1 The precision of this test method is based on aninter-laboratory study of ASTM F387 - 02(2008)
19、 Standard TestMethod for Measuring Thickness of Resilient Floor Coveringwith Foam Layer, conducted in 2009/2010. Each of fivelaboratories tested seven different flooring materials. Every“test result” represents the average of five individualdeterminations, and all participants reported triplicate te
20、stresults. Except for the limited number of laboratoriesparticipating, and materials tested, Practice E691 was followedfor the design and analysis of the data; the details are given inan ASTM Research Report.311.1.1 Repeatability Limit (r)Two test results obtainedwithin one laboratory shall be judge
21、d not equivalent if theydiffer by more than the “r” value for that material; “r”istheinterval representing the critical difference between two testresults for the same material, obtained by the same operatorusing the same equipment on the same day in the samelaboratory.11.1.1.1 Repeatability limits
22、are listed in Table 1.11.1.2 Reproducibility Limit (R)Two test results shall bejudged not equivalent if they differ by more than the “R” valuefor that material; “R” is the interval representing the criticaldifference between two test results for the same material,obtained by different operators usin
23、g different equipment indifferent laboratories.11.1.2.1 Reproducibility limits are listed in Table 1.11.1.3 The above terms (repeatability limit and reproduc-ibility limit) are used as specified in Practice E177.11.1.4 Any judgment in accordance with 11.1.1 and 11.1.2would normally have an approxima
24、te 95 % probability of beingcorrect, however the precision statistics obtained in this ILSmust not be treated as exact mathematical quantities which areapplicable to all circumstances and uses. The limited numberof materials tested and laboratories reporting results guaranteesthat there will be time
25、s when differences greater than predictedby the ILS results will arise, sometimes with considerablygreater or smaller frequency than the 95 % probability limitwould imply. Consider the repeatability limit and the repro-ducibilty limit as general guides, and the associated probabilityof 95 % as only
26、a rough indicator of what can be expected.11.2 BiasAt the time of the study, there was no acceptedreference material suitable for determining the bias for this testmethod, therefore no statement on bias is being made.11.3 The precision statement was determined through thestatistical examination of a
27、 total of 105 analytical results,submitted by the five participating laboratories, on sevenflooring materials.A: rubber sheetB: vinyl sheetC: vinyl sheetD: rubber tileE: vinyl sheetF: vinyl sheetG: vinyl tile11.4 To judge the equivalency of two test results, it isrecommended to choose the material c
28、losest in characteristicsto the test material.12. Keywords12.1 foam layer; resilient flooring materials; thickness3Supporting data have been filed at ASTM International Headquarters and maybe obtained by requesting Research Report RR:F06-1010.TABLE 1 Thickness (inches)Material AverageAxRepeatability
29、StandardDeviationSrReproducibilityStandardDeviationSRRepeatabilityLimitrReproducibilityLimitR“A” 0.16 in. (4.0 mm) 0.1597 0.0014 0.0026 0.0040 0.0072“B” 0.100 in. 0.0985 0.0011 0.0022 0.0032 0.0062“C” 0.197 in. 0.1989 0.0017 0.0031 0.0048 0.0088“D” 0.185 in. 0.1902 0.0005 0.0023 0.0015 0.0064“E” 0.1
30、3 in. 0.1383 0.0010 0.0035 0.0028 0.0099“F” 0.299 in. 0.3024 0.0019 0.0031 0.0052 0.0088“G” 0.056 in. 0.0571 0.0007 0.0021 0.0018 0.0058AThe average of the laboratories calculated averages.F387 172ASTM International takes no position respecting the validity of any patent rights asserted in connectio
31、n 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 entirely their own responsibility.This standard is subject to revision at any time by the responsible
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33、eration 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 Bar
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