1、Designation:F51111Standard Test Method forQuality of Cut(Joint Tightness)of Resilient Floor Tile1This standard is issued under the fixed designation F511;the number immediately following the designation indicates the year of originaladoption or,in the case of revision,the year of last revision.Anumb
2、er in parentheses indicates the year of last reapproval.Asuperscriptepsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This test method covers a means of measuring andevaluating the quality of cut(joint tightness)of square orrectangular resilient floor tile.Chara
3、cteristics that detract froma monolithic(seamless)appearance,such as burred,chipped,nicked,or beveled edges,or bow cut or rounded corners,aremeasured or observed,or both.1.2 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversion
4、s to SI units that are provided for information onlyand are not considered standard.1.3 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 safety and health practices and de
5、termine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:F141 Terminology Relating to Resilient Floor Coverings2.2 ANSI Standard:2ANSI/ASQC Z1.4,(most recent version)Sampling Proce-dures and Tables for Inspection by Attributes3.Significance and Use3.
6、1 Installations of resilient floor tile require tight joints ifsatisfactory appearance is to result.The quality of cut ofresilient tile is determined by this test method.4.Apparatus4.1 Shadow Box,consisting of a backlighted poly(methylmethacrylate)(PMMA)plate measuring 28 by 28 by38in.(710 by 710 by
7、 9.5 mm).One metal strip,28 in.long by34in.(19 mm)wide by18in.(3.2 mm)thick,and one metal strip,2714in.(692 mm)long by34in.wide by18in.thick,arepermanently attached to the PMMA plate to form an included90 6 10-sec angle at the lower left-hand corner of the PMMAplate.This is suitable for tiles up to
8、12 by 12 in.(305 by 305mm).For larger tiles,longer metal strips will have to be used,such that the length of each strip is greater than twice thelongest dimension of the tiles to be measured.4.2 Optical Comparator3Power illuminated magnifier,equipped to measure to the nearest 0.001 in.(0.02 mm).4.3
9、Feeler GagesAs an alternative to the optical compara-tor described in 4.2,a set of feeler gages with a range from0.0015 to 0.035 in.(0.038 to 0.89 mm)for measuring to thenearest 0.001 in.(0.02 mm)may be used.4.4 Wire Gages,sized in increments of 0.005 in.(0.13 mm)from 0.005 to 0.050 in.(0.13 to 1.3
10、mm).5.Sampling5.1 Sample in accordance with ANSI/ASQC Z1.4,mostrecent version.6.Test Specimen and Sample6.1 The specimen(test unit)shall consist of four nominallysquare or rectangular tiles taken from a sample secured inaccordance with ANSI/ASQC Z1.4,most recent version.6.2 The required number of sp
11、ecimens for each test shall beindicated in the individual material specification.If no numberis given,four units(the specimen)shall be taken from thesampled material and one determination made on each.7.Conditioning7.1 Condition the test tiles in an atmosphere maintained at73.4 6 3.6F(23 6 1C)and 50
12、 6 5%relative humidity fornot less than 2 h prior to testing.7.2 Conduct tests in an atmosphere maintained at 73.463.6F(236 1C)and 50 6 5%relative humidity.1This test method is under the jurisdiction ofASTM Committee F06 on ResilientFloor Coverings and is the direct responsibility of Subcommittee F0
13、6.20 on TestMethods-Products Construction/Materials.Current edition approved Jan.15,2011.Published February 2011.Originallyapproved in 1977.Last previous edition approved in 2004 as F511 04.DOI:10.1520/F0511-11.2Available from the American National Standards Institute,25 W.43rd St.,4thFloor,New York
14、,NY 10036.3The sole source of supply of the apparatus known to the committee at this timeis Titan Tool Supply Co.,Inc.,68 CometAve.,Buffalo,N.Y.14216.If you are awareof alternative suppliers,please provide this information to ASTM Headquarters.Your comments will receive careful consideration at a me
15、eting of the responsibletechnical committee,which you may attend.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 8.Procedure8.1 After conditioning,place a tile from the four-tile testunit into the 90 angle formed by the two metal strips(4
16、.1).Place the other three tiles of the test unit so as to form afour-tile square with tiles in firm contact.Do not force the tilesagainst each other.Normally,place each adjacent tile so thatalternative tiles are at 90 to each other as regards manufac-turing direction(a checkerboard design).If the tile being testedhas arrows on the back and instructions call for all tile to beinstalled in one direction,lay the test tile on the PMMA platein that manner.If manufacturing direction cannot be deter-mi
