1、Designation: F 387 02Standard Test Method forMeasuring Thickness of Resilient Floor Covering With FoamLayer1This standard is issued under the fixed designation F 387; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last
2、 revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) 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 the determinatio
3、n of the thick-ness of resilient non-textile floor coverings containing a foamlayer as part of the construction.1.2 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 saf
4、ety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Significance and Use2.1 The overall thickness or caliper of resilient flooring is abasic physical property. However, conventional means ofmeasuring the thickness, such as a hand micrometer or regulard
5、ial micrometer, are not applicable for foam-layer products dueto the error from compressing the foam. This test methodminimizes this type of measuring error and still retains theconvenience and speed of measurement.2.2 Measurement of the product thickness may be requiredfor quality control purposes
6、or to ensure compliance withapplicable 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 0.250 6 0.
7、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.3.1.1 The contact surfaces of the anvil and thickness gagepresser foot shall be parallel within 0.0001 in. (0.003 mm).4. Test Specimen4.1 The specimen shall be approximately 2 by 4 in. (50 by100 mm)
8、.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. Conditioning6.1 Condition the specimens at least 24 h at 73 6 3F (23 62C) and 50 6 5 % relative humidity and test in the sameenvironment.7. Proc
9、edure7.1 Level the instrument.7.2 Clean the anvil and the presser foot surfaces.7.3 Zero the instrument by allowing the presser foot to reston the anvil.7.4 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 th
10、e specimen.7.5 Raise the presser foot and insert the test specimen withthe wearing surface down.7.6 Lower the foot slowly to rest on the specimen withoutimpacting it.7.6.1 Hold the specimen flat taking precautions not tocompress it in the vicinity of the foot.7.7 Upon contact with the surface, take
11、a reading from thegage to the nearest 0.001 in. (0.02 mm). Take all measurementsat least 0.75 in. (19 mm) from any edge of the specimen.7.8 Take five measurements per specimen distributed evenlyacross the length of the specimen unless otherwise specified.8. Calculation8.1 Calculate the average thick
12、ness of each specimen.9. Report9.1 Report the average thickness of each specimen to thenearest 0.001 in. (0.02 mm).9.2 Report the minimum and maximum thickness, or both ifrequired by specification.1This test method is under the jurisdiction of ASTM Committee F06 on ResilientFloor Coverings and is th
13、e direct responsibility of Subcommittee F06.20 on TestMethods Products Construction/Materials.Current edition approved April 10, 2002. Published July 2002. Originallypublished as F 387 73. Last previous edition F 387 93.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshoho
14、cken, PA 19428-2959, United States.10. Precision and Bias10.1 Precision and Bias are being determined by interlabo-ratory study in compliance with ASTM specifications.11. Keywords11.1 foam layer; resilient flooring materials; thicknessASTM International takes no position respecting the validity of a
15、ny 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 entirely their own responsibility.This standard is subject to re
16、vision 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 should be addressed to ASTM International Headquarters. You
17、r 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 Standards, at the address shown below.This standard is copy
18、righted 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 3872
