1、Designation: F 373 06Standard Test Method forEmbossed Depth of Resilient Floor Coverings1This standard is issued under the fixed designation F 373; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number
2、 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 Two important characteristics involved in the manufac-ture
3、of resilient flooring relate to the smoothness of the wearsurface and the hardness of the layers under the wear surface.The surfaces may vary from completely textured areas toportions that are flat but separated by textured areas. This testmethod covers flooring with these interrupted wear surfacesw
4、hich are not supported by soft, cushioned layers.1.2 The values stated in inch-pound units are to be regardedas the standard. The values given in parentheses are forinformation only.1.3 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theres
5、ponsibility 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 Standards:2E 691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test
6、 Method3. Significance3.1 This test method is designed to measure the verticaldistance between any two levels on the face of the flooring, thatis, between any two flat areas, between a flat area and any partof a textured area, or between two textured areas. This verticaldistance may be of interest i
7、n itself or it may be applied to thequestions of: (1) how much of the thickness of the flooring isavailable before the pattern is destroyed; or (2) how deep thedepressed areas must be before valley printing ink is notwalked on in normal traffic.4. Apparatus4.1 The apparatus shall consist of a compar
8、ator stand havinga flat anvil base at least 6 in. (15 cm) square, equipped with adial micrometer graduated to 0.001 in. (0.02 mm), and ahemispherical pressure foot132 in. (0.80 mm) in diameter. Thefoot shall exert a force of not more than 1 ozf (0.28 N) at anypoint in its travel. The force shall be
9、obtained by an appropriateweight. The plunger of the gage shall be perpendicular to theanvil.5. Test Specimen5.1 The specimen shall be a piece of flooring at least 9 by 9in. (230 by 230 mm).6. Calibration6.1 The calibration of the gage shall be verified by means ofgage blocks or shim stock traceable
10、 to national standard ofknown thickness of the appropriate thickness for the depthsbeing measured.7. Conditioning7.1 Condition the specimens at least 24 h at 73.4 6 3.6F(23 6 2C) and 50 6 5 % relative humidity. Test at the sameconditions.8. Procedure8.1 Select the two types of areas on a specimen th
11、at are tobe examined.8.2 Zero the gage at a random point on the higher area.8.3 Move the gage to a random spot in the second area andmeasure the depth.8.4 When measuring on a nominally flat wearing surface, donot place the tip close to a built-up shoulder area around adepressed spot; such a shoulder
12、 reading would give an errone-ous result.1This 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 Oct. 15, 2006. Published November 20
13、06. Originallyapproved in 1973. Last previous edition approved in 2001 as F 37301.2For 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 Document Summary pag
14、e onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.8.5 Make five measurements per specimen scattered atrandom over the specimen face. Record the measurements tothe nearest 0.001 in. (0.02 mm).9. Report9.1 Report the
15、 average of the five measurements calculatedto 0.001 in. (0.02 mm) as the depth between the two types ofareas of interest.9.2 Report the minimum and maximum values obtained.10. Precision and Bias10.1 The number of laboratories, materials, and determina-tions in this study does meet the minimum requi
16、rements fordetermining precision prescribed in Practice E 691.This Study Practice E 691 MinimumLaboratories 6 6Materials 5 4Determinations 5 210.2 Precision, characterized by repeatability, Sr, r, andreproducibility, SR, R has been determined for the materials tobe:Materials AverageASrBSRCrDREMateri
17、al A 14.07 2.05 2.51 5.74 7.02Material B 17.47 2.25 2.48 6.30 6.95Material C 22.22 1.14 1.42 3.19 3.97Material D 4.08 0.43 0.50 1.20 1.40Material E 14.55 0.76 0.97 2.12 2.71AAverage is the numerical average of test results for all replicates from alllaboratories.BSr is the within-laboratory standard
18、 deviation of the average.Cr = 2.83 Sr.DSR is the between-laboratory standard deviation of the average.ER=2.83SR.10.3 Repeatability (Sr, r)In comparing two average val-ues for the same material obtained by the same operator usingthe same equipment on the same day, the means should bejudged not equiv
19、alent if they differ by more than the r value forthat material and condition.10.4 Reproducibility (SR, R)In comparing two averagevalues for the same material obtained by different operatorsusing different equipment on different days, the means shouldbe judged not equivalent if they differ by more th
20、an the R valuefor that material and condition. (This applies between differentlaboratories or between different equipment within the samelaboratory.)10.5 These judgments will have an approximate 0.95 (95%)probability of being correct. Other materials would be expectedto give somewhat different resul
21、ts. For further information onthe methodology used in this section or for further clarification,please refer to Practice E 691.11. Keywords11.1 embossing; flooring; micrometer; resilient; textureASTM International takes no position respecting the validity of any patent rights asserted in connection
22、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 te
23、chnical 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 consider
24、ation 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
25、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).F373062
