1、Designation:F51104 Designation: F511 11Standard 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 y
2、ear 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.1. Scope1.1 This test method covers a means of measuring and evaluating the quality of cut (joint tightness) of square or r
3、ectangularresilient floor tile. Characteristics that detract from a monolithic (seamless) appearance, such as burred, chipped, nicked, or bevelededges, or bow cut or rounded corners, are measured or observed, or both.1.21.2 The values stated in inch-pound units are to be regarded as standard. The va
4、lues given in 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
5、establish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:F141 Terminology Relating to Resilient Floor Coverings2.2 ANSI Standard:2ANSI/ASQC Z1.4-93ANSI/ASQC Z1.4, (most recent version) Sampling P
6、rocedures and Tables for Inspection by Attributes3. Significance and Use3.1 Installations of resilient floor tile require tight joints if satisfactory appearance is to result. The quality of cut of resilient tileis determined by this test method.4. Apparatus4.1 Shadow Box, consisting of a backlighte
7、d poly(methyl methacrylate) (PMMA) plate measuring 28 by 28 by38 in. (710 by710 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. (692mm) long by34 in. wide by18 in. thick, are permanently attached to the PMMA plate to form an inclu
8、ded 90 6 10-sec angleat the lower left-hand corner of the PMMA plate. This is suitable for tiles up to 12 by 12 in. (305 by 305 mm). For larger tiles,longer metal strips will have to be used, such that the length of each strip is greater than twice the longest dimension of the tilesto be measured.4.
9、2 Optical Comparator3Power illuminated magnifier, equipped to measure to the nearest 0.001 in. (0.02 mm).4.3 Feeler GagesAs an alternative to the optical comparator described in 4.2, a set of feeler gages with a range from 0.0015to 0.035 in. (0.038 to 0.89 mm) for measuring to the nearest 0.001 in.
10、(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 mm).5. Sampling5.1Sample in accordance with ANSI/ASQC Z1.4-93.5.1 Sample in accordance with ANSI/ASQC Z1.4, most recent version.1This test method is under the jurisdiction of ASTM Co
11、mmittee F06 on Resilient Floor Coverings, and is the direct responsibility of Subcommittee F06.20 on TestMethodsProducts Construction/Materials.Current edition approved Nov. 1, 2004. Published December 2004. Originally approved in 1977. Last previous edition approved in 1998 as F51198. DOI:10.1520/F
12、0511-04.on Test Methods - Products Construction/Materials.Current edition approved Jan. 15, 2011. Published February 2011. Originally approved 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., 4
13、th Floor, New York, NY 10036.3The sole source of supply of the apparatus known to the committee at this time is Titan Tool Supply Co., Inc., 68 Comet Ave., Buffalo, N.Y. 14216. If you are awareof alternative suppliers, please provide this information to ASTM Headquarters. Your comments will receive
14、careful consideration at a meeting of the responsible technicalcommittee, which you may attend.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 po
15、ssible to adequately depict all changes accurately, ASTM recommends that 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,
16、West Conshohocken, PA 19428-2959, United States.6. Test Specimen and Sample6.1 The specimen (test unit) shall consist of four nominally square or rectangular tiles taken from a sample secured inaccordance with ANSI/ASQC Z1.4-93Z1.4, most recent version.6.2 The required number of specimens for each t
17、est shall be indicated in the individual material specification. If no number isgiven, four units (the specimen) shall be taken from the sampled material and one determination made on each.7. Conditioning7.1 Condition the test tiles in an atmosphere maintained at 73.4 6 3.6F (23 6 1C) and 50 6 5 % r
18、elative humidity for notless than 2 h prior to testing.7.2 Conduct tests in an atmosphere maintained at 73.46 3.6F (236 1C) and 50 6 5 % relative humidity.8. Procedure8.1 After conditioning, place a tile from the four-tile test unit into the 90 angle formed by the two metal strips (4.1). Place theot
19、her three tiles of the test unit so as to form a four-tile square with tiles in firm contact. Do not force the tiles against each other.Normally, place each adjacent tile so that alternative tiles are at 90 to each other as regards manufacturing direction (acheckerboard design). If the tile being te
20、sted has arrows on the back and instructions call for all tile to be installed in one direction,lay the test tile on the PMMA plate in that manner. If manufacturing direction cannot be determined by a visual inspection of thetile, make the four-tile square in a random manner. Place rectangular tiles
21、 with the longer sides in the same direction to make afour-tile rectangle.8.2 Turn on the light in the shadow box and select two points along each tile joint that show the largest opening based on thedegree of light from the shadow box. Measure the width of the opening at those locations using the o
22、ptical comparator. Illuminatethe tile joint from above. Read the opening of the tile joint at the same location as above. Record openings for lighted-above andlighted-below measurements.Average each set of results and subtract the lighted-below result from the lighted-above result. Reportthe differe
23、nce as bevel. The average of the lighted-above result is reported as the average joint opening.NOTE 1The procedure outlined in 8.2 may be performed using feeler gages.8.3 Using the 0.005-in. (0.13-mm) increment wire gages, determine the maximum opening where corners of the four-tile lay-upmeet.8.4 I
24、nspect the full length of the four tile joints using the optical comparator or a 20-power magnifier and record the appearanceof the joints in accordance with 9.1.5.8.5 Turn each tile 90 clockwise and repeat the procedure in accordance with 8.2, 8.3, and 8.4.8.6 Repeat 8.5 until four sets of measurem
25、ents have been made.NOTE 2The procedure outlined in 8.2 may be performed with feeler gages instead of an optical comparator.9. Report9.1 Report the following information:9.1.1 Maximum width of opening (lighted-above) between tile edges,9.1.2 Average width of opening (lighted-above) between tile edge
26、s,9.1.3 Average bevel. Report a zero bevel if the value is negative,9.1.4 Maximum opening of intersection of four tile corners, and9.1.5 Description of the general appearance of edge quality as regards burred edges, nicks, etc. Make special comment if“rockers” or “bow cuts” are observed.10. Precisio
27、n and Bias10.1 The repeatability and reproducibility of this test method are dependent upon the ability to use and read the opticalcomparator or feeler gage measuring device accurately. Typically this bias should be 60.001 in. (0.03 mm).NOTE 3Amore precise statement of the precision and bias cannot
28、be made because it is not feasible to conduct a round robin evaluation of the qualityof the cut due to the effects of handling that the tile receives in both a test situation and in actual use.11. Keywords11.1 joint tightness; quality of cut; resilient floor tileASTM International takes no position
29、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 rights, are entirely their own responsibility.Th
30、is 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 additional standardsand should be addressed to ASTM Int
31、ernational 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 ASTM Committee on Standards, at the address shown
32、 below.F511 112This 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). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).F511 113
