1、April 2012 Translation by DIN-Sprachendienst.English price group 8No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 9
2、7.150!$C“1883225www.din.deDDIN EN ISO 24346Resilient floor coverings Determination of overall thickness (ISO 24346:2006)English translation of DIN EN ISO 24346:2012-04Elastische Bodenbelge Bestimmung der Gesamtdicke (ISO 24346:2006)Englische bersetzung von DIN EN ISO 24346:2012-04Revtements de sol r
3、silients Dtermination de lpaisseur totale (ISO 24346:2006)Traduction anglaise de DIN EN ISO 24346:2012-04SupersedesDIN EN 428:1993-11www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.1103.12 DIN EN ISO 24346:2012-04 2 A comma is used
4、 as the decimal marker. National foreword This standard has been prepared by Technical Committee ISO/TC 219 “Floor coverings” 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 fl
5、oor coverings”, (Secretariat: BSI, United Kingdom). The responsible German body involved in its preparation was the Normenausschuss Kunststoffe (Plastics Standards Committee), Working Committee NA 054-04-05 AA Bodenbelge. Amendments This standard differs from DIN EN 428:1993-11 as follows: a) Clause
6、 4 “Apparatus” has been extended; b) in Clause 5 “Sampling and selection of specimens” Figure 1 has been included; c) Clause 7 “Test procedure” has been revised; d) Clause 10 “Test report” has been revised. Previous editions DIN EN 428: 1993-11 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN IS
7、O 24346 February 2012 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) T
8、his European Standard 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 ref
9、erences concerning such 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 C
10、EN member into its own 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, I
11、celand, Ireland, Italy, 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 Cen
12、tre: Avenue Marnix 17, 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: EContents EN ISO 24346:2012 (E) DIN EN ISO 24346:2012-04 2 Page Foreword 3 1 Scope 4 2 Terms and definitions .4 3 Principle
13、 4 4 Apparatus .4 5 Sampling and selection of specimens 4 5.1 Sheet material 4 5.2 Tile material 5 6 Atmosphere for conditioning and testing .5 7 Test procedure .5 7.1 Preparation .5 7.2 Calibration of apparatus .6 7.3 Determination of thickness .6 8 Calculation and expression of results .7 9 Precis
14、ion statement .7 10 Test report 8 Bibliography 9 Foreword The text of ISO 24346:2006 has been prepared by Technical Committee ISO/TC 219 “Floor coverings” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 24346:2012 by Technical Committee CEN/TC 134 “Resil
15、ient, textile and laminate floor coverings” the secretariat of which is held by BSI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by August 2012, and conflicting national standards shall be withdr
16、awn 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 rights. 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 t
17、he CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvi
18、a, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 24346:2006 has been approved by CEN as a EN ISO 24346:2012 without any modification. EN ISO 24346:2012 (E
19、) DIN EN ISO 24346:2012-04 3 1 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 betwee
20、n two parallel plates where a resilient floor covering is inserted under a specified load 3 Principle The test piece is placed between two parallel plates, and the distance between them is measured, the contact pressure being adapted to suit the structure of the test piece. 4 Apparatus 4.1 Movable c
21、ircular upper plate. For various types of resilient floor covering structures, the diameter of the upper plate, the applied mass, the area 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 cm2. 4.3 Dial gauge, to me
22、asure 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 the fixed lower plate. 5 Sampling and selection of specimens 5.1 Sheet material Take two representative samples from a roll, one from
23、each end, or from the beginning of two rolls. From each sample, cut a test piece a minimum of 100 mm across the full width of the sample (see Figure 1). EN ISO 24346:2012 (E) DIN EN ISO 24346:2012-04 4 Dimensions in millimetres Figure 1 Cutting sheet samples 5.2 Tile material Select five tiles from
24、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 (23 C 2) C an
25、d relative humidity of (50 5) % and test in 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 presser foot and
26、plates are clean. 7.1.3 Set the dial gauge to zero by allowing the presser foot to rest on the lower plate (anvil). EN ISO 24346:2012 (E) DIN EN ISO 24346:2012-04 5 Table 1 Plate and force settings Diameter of upper plate Area Mass applied Approximate corresponding pressure Structure of test specime
27、n mm mm2kg kPa Solid 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 cork 11,30 0,05 100 0,80 0,02 80 7.2 Calibration of apparatus The calibration of the gauge shall be verified by mean
28、s of gauge blocks or shim stock of known 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 the anvil with the wear surface upward. Place the weighted ring or ho
29、rseshoe 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, select an unembossed flat area that is substantially larger, if possible, than the presser foot and at least 20 mm from any edg
30、e of the specimen. Raise the presser foot and insert 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 mm from any edge of the specimen. 7.3.3 Unle
31、ss otherwise specified, make a total of five measurements on each sample at randomly selected locations. 7.3.4 Record the measured values for each test specimen to the nearest 0,01 mm. EN ISO 24346:2012 (E) DIN EN ISO 24346:2012-04 6 Key 1 mass applied 2 weighted ring or horseshoe 3 specimen 4 anvil
32、, lower plate 5 dial gauge 6 upper plate Figure 2 Placement of weighted ring or horseshoe 8 Calculation and expression of results Calculate the mean value of thickness from the number of measurements taken and express the result to 0,01 mm. If required by the specification, report the minimum and ma
33、ximum measurements. 9 Precision statement An interlaboratory test will be conducted to determine the precision of this method. EN ISO 24346:2012 (E) DIN EN ISO 24346:2012-04 7 10 Test report The test report shall include the following information: a) a statement that the tests were performed in acco
34、rdance 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 test was conducted (temperature and relative hum
35、idity); e) any deviation from this International Standard which may have affected the results; f) the thickness of the test specimen. This shall be the mean value for overall thickness calculated to the nearest 0,01 mm; g) the minimum and maximum thickness, if required. EN ISO 24346:2012 (E) DIN EN
36、ISO 24346:2012-04 8 Bibliography 1 EN 428, Resilient floor covering Determination of overall thickness 2 ASTM F 386, Standard Test Method for Thickness of Resilient Flooring Materials Having Flat Surfaces 3 ASTM F 387, Standard Test Method for Measuring Thickness of Resilient Floor Covering With Foam Layer 4 JIS A 1454, Test Methods Resilient Floor Coverings, Section 6.3 Dimension and squareness of Floor Tile and Section 6.4 Dimension of Floor Sheet EN ISO 24346:2012 (E) DIN EN ISO 24346:2012-04 9
