1、April 2012 Translation by DIN-Sprachendienst.English price group 7No 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!$R8“1884721www.din.deDDIN EN ISO 24345Resilient floor coverings Determination of peel resistance (ISO 24345:2006)English translation of DIN EN ISO 24345:2012-04Elastische Bodenbelge Bestimmung des Schlwiderstandes (ISO 24345:2006)Englische bersetzung von DIN EN ISO 24345:2012-04Revtements de s
3、ol rsilients Dtermination de la rsistance au pelage (ISO 24345:2006)Traduction anglaise de DIN EN ISO 24345:2012-04SupersedesDIN EN 431:1994-11www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.1003.12 DIN EN ISO 24345:2012-04 2 A com
4、ma is used 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 24345:2012 by Technical Committee CEN/TC 134 “Resilient, textile and l
5、aminate floor 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 431:1994-11 as follows:
6、 a) in the German version Trennwiderstand has been replaced with Schlwiderstand; b) Clause 5 “Sampling and selection of specimens” has been modified; c) Clause 7 “Test procedure” has been modified; d) Clause 8 “Calculation and expression of results” has been revised; e) Clause 10 “Test report” has b
7、een extended; f) the title of the standard has been changed. Previous editions DIN EN 431: 1994-11 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 24345 February 2012 ICS 97.150 Supersedes EN 431:1994English Version Resilient floor coverings - Determination of peel resistance Revtements de
8、sol rsilients - Dtermination de la rsistance au pelage (ISO 24345:2006) Elastische Bodenbelge - Bestimmung des Schlwiderstandes (ISO 24345:2006) This European Standard was approved by CEN on 24 December 2011. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate t
9、he conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standar
10、d 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 own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the nation
11、al standards bodies of 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, Switzerla
12、nd, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: 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.
13、No. EN ISO 24345:2012: E(ISO 24345:2006) Contents DIN EN ISO 24345:2012-04 EN ISO 24345:2012 (E) Page Foreword 3 1 Scope 4 2 Terms and definitions .4 3 Principle 4 4 Apparatus .4 5 Sampling and selection of specimens 4 6 Atmosphere for conditioning and testing .5 7 Test procedure .5 8 Calculation an
14、d expression of results .6 9 Precision statement .7 10 Test report 7 Bibliography 8 Foreword The text of ISO 24345:2006 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 24345:2012 by Te
15、chnical 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 standard, either by publication of an identical text or by endorsement, at the latest by August 2012, and conflicting
16、 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 rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document sup
17、ersedes EN 431:1994. According to the 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, Hung
18、ary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 24345:2006 has been approved by CEN as a EN ISO 24345:2012 without any
19、 modification. DIN EN ISO 24345:2012-04 EN ISO 24345:2012 (E) 1 Scope This International Standard describes a method for determining the resistance against separation of two layers of a resilient floor covering by peeling. 2 Terms and definitions For the purposes of this document, the following term
20、s and definitions apply. 2.1 peel resistance force applied to the width of one layer of a resilient floor covering which separates it from the adjacent layer 3 Principle The force required to separate layers of a test piece by peeling is measured. 4 Apparatus 4.1 Tensile testing machine, with suitab
21、le load cell and a recording device. The machine shall be capable of maintaining the testing speed required (see 7.2). 5 Sampling and selection of specimens Take a representative sample from the available material. Take six test pieces at regular distances from the sample, the distance between the o
22、uter edge of the sample and the nearest edge of the test piece being at least 100 mm, of minimum length 150 mm and width (50 1) mm, three cut in the machine direction and three cut in the transverse direction (see Figure 1). DIN EN ISO 24345:2012-04 EN ISO 24345:2012 (E) Dimensions in millimetres Fi
23、gure 1 Sampling and selection of specimens 6 Atmosphere for conditioning and testing Condition the test piece(s) at a temperature of (23 2) C and relative humidity of (50 5) % for a minimum of 24 h. Maintain these conditions when conducting the test. Take notice of 7.1. 7 Test procedure 7.1 Effect t
24、he initial separation of the two layers over a sufficient length to permit the test piece to be fixed in the jaws of the tensile testing machine (Figure 2). If a solvent is used for initial separation, remove it by storing the test piece in a ventilated oven at 60 C for two hours, followed by normal
25、 conditioning as described in Clause 6. DIN EN ISO 24345:2012-04 EN ISO 24345:2012 (E) Key 1 test piece 2 direction of pull Figure 2 Specimen fixing 7.2 Place the test piece in the jaws (which are approximately 50 mm apart) of the tensile testing machine so that the tension will be applied evenly ov
26、er the width of the test piece. Set the machine and its recording device in operation such that the speed of separation is (100 5) mm/min. Record the separation force which continues beyond the initial separation. 7.3 Repeat the test on the remaining test pieces. 8 Calculation and expression of resu
27、lts Ignore the first and last quarter of the full length of the graph for each test piece. Spread a screen as shown in Figure 3 over the graph, and record the forces at the cross points in newtons. Calculate the mean value of the peel resistance (2.1) for each test piece rounded to the nearest 5 N.
28、Also calculate the mean value of the peel resistance for each direction from the measurements taken and express the result rounded to the nearest 5 N in newtons per 50 mm. DIN EN ISO 24345:2012-04 EN ISO 24345:2012 (E) Key X Trace length, % Y Force, newtons 1 screen acrosspoints Figure 3 Schematic d
29、iagram of a typical trace 9 Precision statement An interlaboratory test will be conducted to determine the precision of this method. 10 Test report The test report shall include the following information: a) a statement that the tests were performed in accordance with this International Standard (IS
30、O 24345:2006); b) the date(s) at which the tests were carried out; c) complete identification of the product tested, including type, source, colour, and manufacturers reference number(s); d) the previous history of the sample; e) any deviation from this International Standard which may have effected
31、 the results; f) if normal delamination occurred: 1) the mean value of the peel resistance for each direction; 2) the minimum values for each direction; g) if normal delamination did not occur, the manner in which the test pieces failed to delaminate. DIN EN ISO 24345:2012-04 EN ISO 24345:2012 (E) Bibliography 1 EN 431, Resilient floor coverings Determination of peel resistance 2 JIS A 1454, Test Methods Resilient floor coverings, Paragraph 6.15: Peel strength test DIN EN ISO 24345:2012-04 EN ISO 24345:2012 (E)
