1、Designation: F373 13 (Reapproved 2017)Standard Test Method forEmbossed Depth of Resilient Floor Coverings1This standard is issued under the fixed designation F373; the number immediately following the designation indicates the year of originaladoption or, in the case of revision, the year of last re
2、vision. 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 Two important characteristics involved
3、in the manufac-ture 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 interr
4、upted wear surfaceswhich are not supported by soft, cushioned layers.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 standar
5、d 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, health, and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.4 This intern
6、ational 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 TechnicalBarriers to Trade (TBT) Co
7、mmittee.2. Referenced Documents2.1 ASTM Standards:2E691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test MethodF141 Terminology Relating to Resilient Floor Coverings3. Terminology3.1 For terminology relating to Resilient Floor Coverings,see Terminology F141.4. Sig
8、nificance4.1 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 in itself or i
9、t 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.5. Apparatus5.1 The apparatus shall consist of a comparator stand ha
10、vinga 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 obtained by a
11、n appropriateweight. The plunger of the gage shall be perpendicular to theanvil.6. Test Specimen6.1 The specimen shall be a piece of flooring at least 9 by 9in. (230 by 230 mm).7. Calibration7.1 The calibration of the gage shall be verified by means ofgage blocks or shim stock traceable to national
12、standard ofknown thickness of the appropriate thickness for the depthsbeing measured.8. Conditioning8.1 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.9. Procedure9.1 Select the two types of areas on a specimen that are tobe e
13、xamined.9.2 Zero the gage at a random point on the higher area.9.3 Move the gage to a random spot in the second area andmeasure the depth.1This test method is under the jurisdiction ofASTM Committee F06 on ResilientFloor Coverings and is the direct responsibility of Subcommittee F06.20 on TestMethod
14、s - Products Construction/Materials.Current edition approved Nov. 1, 2017. Published May 2013. Originallyapproved in 1973. Last previous edition approved in 2013 as F37313. DOI:10.1520/F0373-13R17.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service a
15、t 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 was developed in accord
16、ance 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.19.4 When measuring on a nominally
17、 flat wearing surface, donot place the tip close to a built-up shoulder area around adepressed spot; such a shoulder reading would give an errone-ous result.9.5 Make five measurements per specimen scattered atrandom over the specimen face. Record the measurements tothe nearest 0.001 in. (0.02 mm).10
18、. Report10.1 Report the average of the five measurements calculatedto 0.001 in. (0.02 mm) as the depth between the two types ofareas of interest.10.2 Report the minimum and maximum values obtained.11. Precision and Bias11.1 The number of laboratories, materials, and determina-tions in this study doe
19、s meet the minimum requirements fordetermining precision prescribed in Practice E691.This Study Practice E691 MinimumLaboratories 6 6Materials 5 4Determinations 5 211.2 Precision, characterized by repeatability, Sr, r, andreproducibility, SR, R has been determined for the materials tobe:Materials Av
20、erageASrBSRCrDREMaterial 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 with
21、in-laboratory standard deviation of the average.Cr = 2.83 Sr.DSR is the between-laboratory standard deviation of the average.ER=2.83SR.11.3 Repeatability (Sr, r)In comparing two average valuesfor the same material obtained by the same operator using thesame equipment on the same day, the means shoul
22、d be judgednot equivalent if they differ by more than the r value for thatmaterial and condition.11.4 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 th
23、ey differ by more than the R valuefor that material and condition. (This applies between differentlaboratories or between different equipment within the samelaboratory.)11.5 These judgments will have an approximate 0.95 (95%)probability of being correct. Other materials would be expectedto give some
24、what different results. For further information onthe methodology used in this section or for further clarification,please refer to Practice E691.12. Keywords12.1 embossing; flooring; micrometer; resilient; textureASTM International takes no position respecting the validity of any patent rights asse
25、rted 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 revision at any time by
26、 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. Your comments will recei
27、ve 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 copyrighted by ASTM Inter
28、national, 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). 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:/ 13 (2017)2
