1、Designation:F38602 (Reapproved 2008) Designation: F386 11Standard Test Method forThickness of Resilient Flooring Materials Having FlatSurfaces1This standard is issued under the fixed designation F386; the number immediately following the designation indicates the year of originaladoption or, in the
2、case of revision, the year of last revision. 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 Department of Defense.1. Scope1.1 This te
3、st method covers the determination of thickness of resilient nontextile floor coverings including tile and sheet havingflat surfaces. This test method should not be used on materials having a foamed layer.1.21.2 The values stated in inch-pound units are to be regarded as standard. The values given i
4、n parentheses are mathematicalconversions to SI units that are provided for information only and are not considered standard.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish ap
5、propriate safety and health practices and determine the applicability of regulatorylimitations prior to use.2. Significance and Use2.1Measurement of the thickness of the product may be required for quality control purposes or to ensure compliance withapplicable specifications. Referenced Documents2.
6、1 ASTM Standards:2E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test MethodE177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods3. Apparatus3.1The apparatus shall consist of a comparator stand having a flat anvil base at least 6 in. (15 cm
7、) square, equipped with athickness gage graduated to 0.001 in. (0.02 mm). The gage shall be equipped with a flat presser foot 0.2506 0.01 in. (6.35 6 0.5mm) in diameter. The foot shall exert a force of 16 6 0.1 ozf (4.45 6 0.03 N) maximum.3.1.1The contact surfaces of the anvil and the thickness gage
8、 presser foot shall be parallel within 0.0001 in. (0.003 mm).3.1.2Before placing the micrometer into operation, the surfaces shall be cleaned so the gage zeros properly. Significance and Use3.1 Measurement of the thickness of the product may be required for quality control purposes or to ensure comp
9、liance withapplicable specifications.4. Test Specimens4.1The test specimen shall be a minimum of one tile or a 12 by 12-in. (300 by 300-mm) piece of sheet flooring. Apparatus4.1 The apparatus shall consist of a comparator stand having a flat anvil base at least 6 in. (15 cm) square, equipped with at
10、hickness gage graduated to 0.001 in. (0.02 mm). The gage shall be equipped with a flat presser foot 0.2506 0.01 in. (6.35 6 0.5mm) in diameter. The foot shall exert a force of 16 6 0.1 ozf (4.45 6 0.03 N) maximum.4.1.1 The contact surfaces of the anvil and the thickness gage presser foot shall be pa
11、rallel within 0.0001 in. (0.003 mm).4.1.2 Before placing the micrometer into operation, the surfaces shall be cleaned so the gage zeros properly.1This test method is under the jurisdiction ofASTM Committee F06 on Resilient Floor Coverings and is the direct responsibility of Subcommittee F06.20 on Te
12、st Methods- Products Construction/Materials.Current edition approved Nov. 1, 2008. Published December 2008. Originally approved in 1973. Last previous edition approved in 2002 as F38602. DOI:10.1520/F0386-02R08.Current edition approved March 15, 2011. Published April 2011. Originally approved in 197
13、3. Last previous edition approved in 2008 as F386 02(2008). DOI:10.1520/F0386-11.2For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary pag
14、e on the ASTM website.1This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that
15、users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.5. Calibration5.1Calibrat
16、e the gage by means of gage blocks or shim stock of known thickness appropriate to the thickness of the materialbeing measured. Test Specimens5.1 The test specimen shall be a minimum of one tile or a 12 by 12-in. (300 by 300-mm) piece of sheet flooring.6. Conditioning6.1Condition the test specimen a
17、t least 24 h at 736 3F (23 6 2C) and 50 6 5% relative humidity and test in the sameenvironment. Calibration6.1 Calibrate the gage by means of gage blocks or shim stock of known thickness appropriate to the thickness of the materialbeing measured.7. Procedure7.1Place the specimen with the wearing sur
18、face upward on the comparator stand anvil, taking care that the specimen is flatagainst the anvil.7.2Lower the presser foot gently until it contacts the surface of the specimen.7.3Upon contact with the surface, take a reading to the nearest 0.001 in. (0.02 mm) from the gage. Take all measurements at
19、least 0.75 in. (19 mm) from any edge of the specimen.7.4Take a total of five measurements on each specimen, at randomly selected locations unless otherwise specified. Conditioning7.1 Condition the test specimen at least 24 h at 736 3F (23 6 2C) and 50 6 5 % relative humidity and test in the sameenvi
20、ronment.8. Calculation8.1Calculate the average thickness of each specimen. Procedure8.1 Place the specimen with the wearing surface upward on the comparator stand anvil, taking care that the specimen is flatagainst the anvil.8.2 Lower the presser foot gently until it contacts the surface of the spec
21、imen.8.3 Upon contact with the surface, take a reading to the nearest 0.001 in. (0.02 mm) from the gage. Take all measurements atleast 0.75 in. (19 mm) from any edge of the specimen.8.4 Take a total of five measurements on each specimen, at randomly selected locations unless otherwise specified.9. R
22、eport9.1Report the average thickness of each specimen to the nearest 0.001 in. (0.02 mm).9.1.1Report the minimum or maximum thickness, or both if required by the specification. Calculation9.1 Calculate the average thickness of each specimen.10. Precision and Bias10.1Precision and Bias are being dete
23、rmined by interlaboratory study in compliance with ASTM specifications. Report10.1 Report the average thickness of each specimen to the nearest 0.001 in. (0.02 mm).10.1.1 Report the minimum or maximum thickness, or both if required by the specification.11. Keywords11.1flat surfaces; resilient floori
24、ng materials; thickness Precision and Bias11.1 The precision of this test method is based on an inter-laboratory study of ASTM F386 - 02(2008) Standard Test Methodfor Thickness of Resilient Flooring Materials Having Flat Surfaces, conducted in 2009. Each of five laboratories tested ten differentfloo
25、ring materials. Every “test result” represents the average of five individual determinations, and all participants were asked toreport triplicate test results. Except for the limited number of laboratories participating, and materials tested, Practice E691 wasfollowed for the design and analysis of
26、the data; the details are given in an ASTM Research Report.311.1.1 Repeatability Limit (r)Two test results obtained within one laboratory shall be judged not equivalent if they differ bymore than the “r” value for that material; “r” is the interval representing the critical difference between two te
27、st results for the samematerial, obtained by the same operator using the same equipment on the same day in the same laboratory.11.1.1.1 Repeatability limits are listed in Table 1.11.1.2 Reproducibility Limit (R)Two test results shall be judged not equivalent if they differ by more than the “R” value
28、 forthat material; “R” is the interval representing the critical difference between two test results for the same material, obtained bydifferent operators using different equipment in different laboratories.11.1.2.1 Reproducibility limits are listed in Table 1.11.1.3 The above terms (repeatability l
29、imit and reproducibility limit) are used as specified in Practice E177.3Supporting data have been filed at ASTM International Headquarters and may be obtained by requesting Research Report RR:F06-1009.F386 11211.1.4 Any judgment in accordance with 11.1.1 and 11.1.2 would normally have an approximate
30、 95 % probability of beingcorrect, however the precision statistics obtained in this ILS must not be treated as exact mathematical quantities which areapplicable to all circumstances and uses. The limited number of materials tested and laboratories reporting results guarantees thatthere will be time
31、s when differences greater than predicted by the ILS results will arise, sometimes with considerably greater orsmaller frequency than the 95 % probability limit would imply. Consider the repeatability limit and the reproducibility limit asgeneral guides, and the associated probability of 95 % as onl
32、y a rough indicator of what can be expected.11.2 BiasAt the time of the study, there was no accepted reference 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 the statistical examination
33、of a total of 137 analytical results, submittedby the five participating laboratories, on ten flooring materials.A: rubber sheet/tileB: rubber sheet/tileC: rubber tileD: rubber tileE: rubber tileF: rubber tileG: linoleum sheetH: vinyl tileI: vinyl sheetJ: vinyl composition tile11.4 To judge the equi
34、valency of two test results, it is recommended to choose the material closest in characteristics to the testmaterial.12. Keywords12.1 flat surfaces; resilient flooring materials; thicknessASTM International takes no position respecting the validity of any patent rights asserted in connection with an
35、y 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 technical
36、 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 consideration a
37、t 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 Harbor
38、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.ast
39、m.org). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).TABLE 1 Thickness (inches)Material AverageAxRepeatabilityStandardDeviationSrReproducibilityStandardDeviationSRRepeatabilityLimitrReproducibilityLimitR“A” 0.079 in. (2 mm) 0.07880 0
40、.00048 0.00114 0.00135 0.00320“B” 0.118 in. (3 mm) 0.11808 0.00052 0.00086 0.00145 0.00242“C” 0.138 in. (3.5 mm) 0.13824 0.00056 0.00141 0.00156 0.00395“D” 0.125 in. 0.10468 0.00395 0.00395 0.01105 0.01105“E” 0.130 in. 0.13382 0.00082 0.00225 0.00230 0.00629“F” 0.100 in. 0.10391 0.00079 0.00116 0.00221 0.00324“G” 0.0984 in. 0.09520 0.00106 0.00252 0.00296 0.00706“H” 0.08 in. 0.08211 0.00192 0.00257 0.00538 0.00721“I” 0.125 in. 0.11947 0.00135 0.00180 0.00377 0.00505“J” 0.125 in. 0.12441 0.00108 0.00160 0.00302 0.00449AThe average of the laboratories calculated averages.F386 113
