1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 24346:2012Resilient floor coverings Determination of overallthickness (ISO 24346:2006)BS EN ISO 24346:2012 BRITISH STANDARDNational forewordThis British Standard is the
2、 UK implementation of EN ISO24346:2012. It is identical to . It supersedes BS EN 428:1993 (R10)which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee PRI/60, Resilient floor coverings.A list of organizations represented on this committee can beobtained on requ
3、est to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2012. Published by BSI StandardsLimited 2012ISBN 978 0 580 75240 7ICS 97.150Compliance with a British Stand
4、ard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 29 February 2012.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 24346 February 2012
5、 ICS 97.150 Supersedes EN 428:1993English Version Resilient floor coverings - Determination of overall thickness (ISO 24346:2006) Revtements de sol rsilients - Dtermination de lpaisseur totale (ISO 24346:2006) Elastische Bodenbelge - Bestimmung der Gesamtdicke (ISO 24346:2006) This European Standard
6、 was approved by CEN on 24 December 2011. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning su
7、ch national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its ow
8、n language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Ital
9、y, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17
10、, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 24346:2012: EBS EN ISO 24346:2012 EN ISO 24346:2012 (E) 3 Foreword The text of ISO 24346:2006 has been prepared by Technical Committee ISO/TC 219 “Floor cov
11、erings” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 24346:2012 by Technical Committee CEN/TC 134 “Resilient, textile and laminate floor coverings” the secretariat of which is held by BSI. This European Standard shall be given the status of a national
12、 standard, either by publication of an identical text or by endorsement, at the latest by August 2012, and conflicting national standards shall be withdrawn at the latest by August 2012. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rig
13、hts. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 428:1993. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard:
14、 Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the Uni
15、ted Kingdom. Endorsement notice The text of ISO 24346:2006 has been approved by CEN as a EN ISO 24346:2012 without any modification. BS EN ISO 24346:2012ISO 24346:2006(E) ISO 2006 All rights reserved iiiContents PageForeword iv1Scope. 12Terms and definitions. 13Principle. 14Apparatus 15Sampling and
16、selection of specimens 15.1 Sheet material . 15.2 Tile material. 26Atmosphere for conditioning and testing 27Test procedure 27.1 Preparation 27.2 Calibration of apparatus 37.3 Determination of thickness 38Calculation and expression of results 49Precision statement 410 Test report.5Bibliography. 6BS
17、EN ISO 24346:2012ISO 24346:2006(E)iv ISO 2006 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical c
18、ommittees. Each member body interested in a subject for which a tec hnical committee has beenestablished has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closelywith th
19、e International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.The main task of technical committees is to prepare International Standards. Draft Internatio
20、nal Standardsadopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be th
21、e subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 24346 was prepared by Technical Committee ISO/TC 219, Floor coverings. BS EN ISO 24346:2012INTERNATIONAL STANDA RD ISO 24346:2006(E) ISO 2006 All rights reserved 1Resilient floor covering
22、s Determination of overall thickness1 Scope This International Standard specifies a method for determining the overall thickness of resilient floor coverings.2 Terms and definitions For the purposes of this document, the following terms and definitions apply.2.1 overall thickness vertical distance b
23、etween two parallel plates where a resilient floor covering is inserted under a specified load3 Principle The test piece is placed between two parallel plates, and the distance between them is measured, the contactpressure being adapted to suit the structure of the test piece.4 Apparatus 4.1Movable
24、circular upper plate . For various types of resilient floor covering structures, the diameter of the upper plate, the applied mass, thearea and the pressure shall be in accordance with Table 1. 4.2 Fixed lower plate , at least equal to size of the upper plate and at least 15 cm 2 . 4.3 Dialgauge, to
25、 measure the distance between the plates to an accuracy of 0,01 mm.4.4 Weighted ring or horseshoe (500 g), to hold the perimeter of the specimen uniformly flat against thefixed lower plate. 5 Sampling and selection of specimens 5.1 Sheet materialTake two representative samples from a roll, one frome
26、ach end, or from the beginning of two rolls. From each sample, cut a testpiece a minimum of 100 mm across the full width of the sample (see Figure 1). BS EN ISO 24346:2012ISO 24346:2006(E)2 ISO 2006 All rights reservedDimensions in millimetres Figure 1 Cutting sheet samples5.2 Tile materialSelect fi
27、ve tiles from carton as test pieces and cut them to the appropriate size of 50 mm 100 mm. Where a pack or carton of tiles comprises the sample, ensure that the first and last tiles are not used as test pieces. 6 Atmosphere for conditioning and testing Condition the specimens for a minimum of 24 h at
28、 (23C 2) C and relative humidity of (50 5) % and testin the same environment. 7 Test procedure 7.1 Preparation 7.1.1 Make sure the test instrument is level.7.1.2 Select the appropriate upper plate and force applied according to Table 1 for the test specimen type to be measured. Check that the presse
29、r foot and plates are clean. 7.1.3 Set the dial gauge to zero by allowing the presser foot to rest on the lower plate (anvil). BS EN ISO 24346:2012ISO 24346:2006(E) ISO 2006 All rights reserved 3Table 1 Plate and force settin gsDiameter ofupper plate Area Mass appliedApproximate corresponding pressu
30、reStructure of test specimen mm mm2 kg kPaSolid throughout 8,00 0,05 50 0,40 0,02 80 At least one non-solid layer 25,3 0,1 500 0,20 0,02 4 Rubber and other relief materials 50,0 0,2 2 000 5,0 0,1 25 Composition cork11,30 0,05 100 0,80 0,02 80 7.2Calibration of apparatus The calibration of the gauge
31、shall be verified by means of gauge blocks or shim stock ofknown thickness appropriate to the thickness being measured. 7.3 Determination of thickness 7.3.1 Place the specimen on the fixed lower plate (anvil) taking care that the specimen is flat against theanvil with the wear surface upward. Place
32、the weighted ring or horseshoe centred to the presser foot (see Figure 2). Lower the presser foot gently until it contacts the surface of the specimen. When measuring materials with a foam layer, selectan unembossed f lat area that is substantially larger, if possible, than the presser foot and at l
33、east 20 mm from any edge of the specimen. Raise the presser foot andinsert the test specimen. 7.3.2 Read the thickness 5 s after application of loaded plate; read to the nearest 0,001 mm or to the measuring limits of the instrument being used. Make all measurements at least 20 mmfrom any edge of the
34、specimen. 7.3.3 Unless otherwise specified, make a total of five measurements on each sample at randomly selectedlocations. 7.3.4 Record the measured values for each test specimen to the nearest 0,01 mm. BS EN ISO 24346:2012ISO 24346:2006(E)4 ISO 2006 All rights reservedKey1 massapplied 2 weighted r
35、ing or horseshoe 3 specimen 4 anvil, lower plate 5 dial gauge 6 upper plate Figure 2 Placement of weighted ring or horseshoe8 Calculation and expression of results Calculate the mean value of thickness from the number of measurements taken and express the result to0,01 mm. If required by the specifi
36、cation, report the minimum and maximummeasurements.9 Precision statementAn interlaboratory testwill be conducted to determine the precision of this method. BS EN ISO 24346:2012ISO 24346:2006(E) ISO 2006 All rights reserved 510 Test reportThe test report shall include the following information:a) a s
37、tatement that the tests were performed in accordance with this International Standard (ISO 24346); b) the complete identification of each sample, including type, source, colour and manufacturers reference numbers;c) the previous history of the sample; d) the exact testing atmosphere at which the tes
38、t was conducted (temperature and relative humidity);e) anydeviation from this International S tandard which mayhave affected the r esults;f) the thickness of the test specimen. This shall be the mean value foroverall thickness calculated to the nearest 0,01 mm; g) the minimum and maximum thickness,
39、if required.BS EN ISO 24346:2012ISO 24346:2006(E)6 ISO 2006 All rights reservedBibliography1 EN 428, Resilient floor coveri ng Determination of overall thickness2 ASTM F 386, Standard Test Method for Thickness of Resilient Flooring Materials Having Flat Surfac es3 ASTM F 387, Standard Test Method fo
40、r Measuring T hickness of Resilient Floor Covering With FoamLayer4 JIS A 1454, Test Methods Resilient Floor Coverings, Section 6.3 Di mension and squareness ofFloor Tile and Section 6.4 Dimension of Floor SheetBS EN ISO 24346:2012This page deliberately left blankThis page deliberately left blankBSI
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