1、Designation: F 386 02 (Reapproved 2008)Standard Test Method forThickness of Resilient Flooring Materials Having FlatSurfaces1This standard is issued under the fixed designation F 386; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision,
2、 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.This standard has been approved for use by agencies of the Department of Defense.1. Scope1.1 This test method covers
3、the determination of thicknessof resilient nontextile floor coverings including tile and sheethaving flat surfaces. This test method should not be used onmaterials having a foamed layer.1.2 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is th
4、eresponsibility 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. Significance and Use2.1 Measurement of the thickness of the product may berequired for quality control purposes or to ensure c
5、ompliancewith applicable specifications.3. Apparatus3.1 The apparatus shall consist of a comparator stand havinga flat anvil base at least 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 0.2506 0.01 in. (6.356 0
6、.5 mm) in diameter. The foot shall exert a force of 16 6 0.1ozf (4.45 6 0.03 N) maximum.3.1.1 The contact surfaces of the anvil and the thicknessgage presser foot shall be parallel within 0.0001 in. (0.003mm).3.1.2 Before placing the micrometer into operation, thesurfaces shall be cleaned so the gag
7、e zeros properly.4. Test Specimens4.1 The test specimen shall be a minimum of one tile or a 12by 12-in. (300 by 300-mm) piece of sheet flooring.5. Calibration5.1 Calibrate the gage by means of gage blocks or shimstock of known thickness appropriate to the thickness of thematerial being measured.6. C
8、onditioning6.1 Condition the test specimen at least 24 h at 736 3F (236 2C) and 50 6 5 % relative humidity and test in the sameenvironment.7. Procedure7.1 Place the specimen with the wearing surface upward onthe comparator stand anvil, taking care that the specimen is flatagainst the anvil.7.2 Lower
9、 the presser foot gently until it contacts thesurface of the specimen.7.3 Upon contact with the surface, take a reading to thenearest 0.001 in. (0.02 mm) from the gage. Take all measure-ments at least 0.75 in. (19 mm) from any edge of the specimen.7.4 Take a total of five measurements on each specim
10、en, atrandomly selected locations unless otherwise specified.8. Calculation8.1 Calculate the average thickness of each specimen.9. Report9.1 Report the average thickness of each specimen to thenearest 0.001 in. (0.02 mm).9.1.1 Report the minimum or maximum thickness, or both ifrequired by the specif
11、ication.10. Precision and Bias10.1 Precision and Bias are being determined by interlabo-ratory study in compliance with ASTM specifications.11. Keywords11.1 flat surfaces; resilient flooring materials; thickness1This test method is under the jurisdiction ofASTM Committee F06 on ResilientFloor Coveri
12、ngs and is the direct responsibility of Subcommittee F06.20 on TestMethods - Products Construction/Materials.Current edition approved Nov. 1, 2008. Published December 2008. Originallyapproved in 1973. Last previous edition approved in 2002 as F 386 02.1Copyright ASTM International, 100 Barr Harbor D
13、rive, PO Box C700, West Conshohocken, PA 19428-2959, United States.ASTM International 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
14、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 technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are inv
15、ited either for revision of this standard or for additional standardsand should 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
16、 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 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).F 386 02 (2008)2
