1、Designation: F 511 04Standard Test Method forQuality of Cut (Joint Tightness) of Resilient Floor Tile1This standard is issued under the fixed designation F 511; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revis
2、ion. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) 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 resilie
3、nt floor tile. Characteristics 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 This standard does not purport to address all of thesafety concerns, if any, associated with its u
4、se. It is theresponsibility 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 ANSI Standard:2ANSI/ASQC Z1.4-93 Sampling Procedures and Tables forInspection by Attribute
5、s3. Significance and Use3.1 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
6、 28 by 28 by38 in.(710 by 710 by 9.5 mm). One metal strip, 28 in. long by34 in.(19 mm) wide by18 in. (3.2 mm) thick, and one metal strip,2714 in. (692 mm) long by34 in. wide by18 in. thick, arepermanently attached to the PMMA plate to form an included90 6 10-sec angle at the lower left-hand corner o
7、f the PMMAplate. This is suitable for tiles up to 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,equip
8、ped to measure to the nearest 0.001 in. (0.02 mm).4.3 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 incremen
9、ts of 0.005 in. (0.13 mm)from 0.005 to 0.050 in. (0.13 to 1.3 mm).5. Sampling5.1 Sample in accordance with ANSI/ASQC Z1.4-936. 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-
10、93.6.2 The required number of specimens 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 ma
11、intained at73.4 6 3.6F (23 6 1C) and 50 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.8. Procedure8.1 After conditioning, place a tile from the four-tile testunit into the 90 angle form
12、ed by the two metal strips (4.1).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
13、(a checkerboard design). If the tile being testedhas arrows on the back and instructions call for all tile to be1This test method is under the jurisdiction ofASTM Committee F06 on ResilientFloor Coverings, and is the direct responsibility of Subcommittee F06.20 on TestMethodsProducts Construction/Ma
14、terials.Current edition approved Nov. 1, 2004. Published December 2004. Originallyapproved in 1977. Last previous edition approved in 1998 as F 511 98.2Available from the American National Standards Institute, 25 W. 43rd St., 4thFloor, New York, NY 10036.3The sole source of supply of the apparatus k
15、nown 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 meeting of the responsibletechnical committee, whi
16、ch you may attend.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.installed in one direction, lay the test tile on the PMMA platein that manner. If manufacturing direction cannot be deter-mined by a visual inspection of the tile, mak
17、e the four-tilesquare in a random manner. Place rectangular tiles with thelonger sides in the same direction to make a four-tile rectangle.8.2 Turn on the light in the shadow box and select twopoints along each tile joint that show the largest opening basedon the degree of light from the shadow box.
18、 Measure the widthof the opening at those locations using the optical comparator.Illuminate the tile joint from above. Read the opening of thetile joint at the same location as above. Record openings forlighted-above and lighted-below measurements. Average eachset of results and subtract the lighted
19、-below result from thelighted-above result. Report the difference as bevel. Theaverage of the lighted-above result is reported as the averagejoint opening.NOTE 1The procedure outlined in 8.2 may be performed using feelergages.8.3 Using the 0.005-in. (0.13-mm) increment wire gages,determine the maxim
20、um opening where corners of the four-tilelay-up meet.8.4 Inspect the full length of the four tile joints using theoptical comparator or a 20-power magnifier and record theappearance of the joints in accordance with 9.1.5.8.5 Turn each tile 90 clockwise and repeat the procedure inaccordance with 8.2,
21、 8.3, and 8.4.8.6 Repeat 8.5 until four sets of measurements have beenmade.NOTE 2The procedure outlined in 8.2 may be performed with feelergages instead of an optical comparator.9. Report9.1 Report the following information:9.1.1 Maximum width of opening (lighted-above) betweentile edges,9.1.2 Avera
22、ge width of opening (lighted-above) between tileedges,9.1.3 Average bevel. Report a zero bevel if the value isnegative,9.1.4 Maximum opening of intersection of four tile corners,and9.1.5 Description of the general appearance of edge qualityas regards burred edges, nicks, etc. Make special comment if
23、“rockers” or “bow cuts” are observed.10. Precision and Bias10.1 The repeatability and reproducibility of this testmethod are dependent upon the ability to use and read theoptical comparator or feeler gage measuring device accurately.Typically this bias should be6 0.001 in. (0.03 mm).NOTE 3A more pre
24、cise statement of the precision and bias cannot bemade because it is not feasible to conduct a round robin evaluation of thequality of the cut due to the effects of handling that the tile receives in botha test situation and in actual use.11. Keywords11.1 joint tightness; quality of cut; resilient f
25、loor tileASTM International takes no position respecting the validity of any 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 ri
26、ghts, are entirely their own responsibility.This standard is subject to revision 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 additiona
27、l standardsand should be addressed to ASTM International Headquarters. Your 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 AST
28、M Committee on Standards, at the address shown below.This standard is copyrighted 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).F511042
