1、April 2010 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、1.100.50!$aZd“1625565www.din.deDDIN EN 1849-2Flexible sheets for waterproofing Determination of thickness and mass per unit area Part 2: Plastic and rubber sheetsEnglish translation of DIN EN 1849-2:2010-04Abdichtungsbahnen Bestimmung der Dicke und der flchenbezogenen Masse Teil 2: Kunststoff- und E
3、lastomerbahnen fr DachabdichtungenEnglische bersetzung von DIN EN 1849-2:2010-04Feuilles souples dtanchit Dtermination de lpaisseur et de la masse surfacique Partie 2: Feuilles dtanchit de toiture plastiques et lastomresTraduction anglaise de DIN EN 1849-2:2010-04SupersedesDIN EN 1849-2:2001-09www.b
4、euth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 12 pages04.10 DIN EN 1849-2:2010-04 2 A comma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee CEN/TC 254 “Flexible sheets for waterproofi
5、ng” (Secretariat: BSI, United Kingdom). The responsible German body involved in its preparation was the Normenausschuss Kunststoffe (Plastics Standards Committee), Working Committee NA 054-04-03 AA Baubahnen. Amendments This standard differs from DIN EN 1849-2:2001-09 as follows: a) Subclauses 5.2 “
6、Apparatus” and 5.4 “Procedure” have been revised. b) Subclause 5.3 “Test specimens” has been extended to include Table 1 “Required number of test specimens”. c) Clause 7 “Precision of the test methods” has been deleted. d) The test report has been extended to include items d), e) and f). e) Annex A
7、“Example of the cut cross-section of a membrane” has been added. f) The standard has been editorially revised. Previous editions DIN 16935: 1961-12, 1967-06, 1971-05 DIN 16937: 1968-07, 1971-05 DIN 16938: 1971-05 DIN 16730: 1976-05 DIN 16731: 1976-05 DIN 16732-1: 1976-05 DIN 16732-2: 1976-05 DIN 167
8、34: 1979-12 DIN 16726: 1986-12 DIN EN 1849-02: 2001-09 National Annex NA (informative) Bibliography DIN EN 12311-2, Flexible sheets for waterproofing Determination of tensile properties Part 2: Plastic and rubber sheets for roof waterproofing EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1849
9、-2 December 2009 ICS 91.100.50 Supersedes EN 1849-2:2001English Version Flexible sheets for waterproofing - Determination of thickness and mass per unit area - Part 2: Plastic and rubber sheets Feuilles souples dtanchit - Dtermination de lpaisseur et de la masse surfacique - Partie 2: Feuilles dtanc
10、hit de toiture plastiques et lastomres Abdichtungsbahnen - Bestimmung der Dicke und der flchenbezogenen Masse - Teil 2: Kunststoff- und Elastomerbahnen fr Dachabdichtungen This European Standard was approved by CEN on 19 October 2009. CEN members are bound to comply with the CEN/CENELEC Internal Reg
11、ulations 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 such national standards may be obtained on application to the CEN Management Centre or to any CEN member. Thi
12、s 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 own language and notified to the CEN Management Centre has the same status as the official versions. CEN members are
13、the national standards bodies of Austria, Belgium, Bulgaria, 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, Switzerl
14、and and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN
15、1849-2:2009: EEN 1849-2:2009 (E) 2 Contents Page Foreword . 3Introduction 41 Scope 52 Normative references . 53 Terms and definitions . 54 Sampling 75 Determination of thickness 75.1 Principle . 75.2 Apparatus 75.3 Test specimens . 75.4 Procedure 75.4.1 General . 75.4.2 Mechanical measurement 85.4.3
16、 Optical measurement 85.5 Expression of results 86 Determination of mass per unit area . 96.1 Principle . 96.2 Apparatus 96.3 Test specimens . 96.4 Procedure 96.5 Expression of results 97 Test report . 9Annex A (informative) Example of the cut cross-section of a membrane . 10DIN EN 1849-2:2010-04 EN
17、 1849-2:2009 (E) 3 Foreword This document (EN 1849-2:2009) has been prepared by Technical Committee CEN/TC 254 “Flexible sheets for waterproofing”, 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
18、text or by endorsement, at the latest by June 2010, and conflicting national standards shall be withdrawn at the latest by June 2010. 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
19、 for identifying any or all such patent rights. This document supersedes EN 1849-2:2001. 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, Cyprus, Czech Republi
20、c, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. DIN EN 1849-2:2010-04 EN 1849-2:2009 (E) 4 Introductio
21、n This European Standard is intended for characterisation of plastic and rubber sheets as manufactured or supplied before use. This test method relates exclusively to products or to their components where appropriate, and not to waterproofing membrane systems composed of such products and installed
22、in the works. This test is intended to be used in conjunction with EN 13956, Flexible sheet for waterproofing Plastic and rubber sheets for roof waterproofing Definitions and characteristics. DIN EN 1849-2:2010-04 EN 1849-2:2009 (E) 5 1 Scope This European Standard specifies methods for the determin
23、ation of the thickness and mass per unit area of plastic and rubber sheets for roof waterproofing. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the lates
24、t edition of the referenced document (including any amendments) applies. EN 13416, Flexible sheets for waterproofing Bitumen, plastic and rubber sheets for roof waterproofing Rules for sampling 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1
25、surface texture textured pattern on one or both surfaces of the sheet creating a difference between the effective and overall thickness not exceeding 0,15 mm NOTE See Figure 2 a) and c). 3.2 surface profile (surface structure) raised area on the surface of the sheet creating a difference between the
26、 effective and overall thickness exceeding 0,15 mm NOTE See Figure 2 b). 3.3 internal fabric layer of woven or non-woven fabric of synthetic or mineral fibres incorporated in the sheet. This layer may or may not constitute reinforcement NOTE See Figure 1 c). 3.4 backing layer of woven or non-woven f
27、abric of synthetic or mineral fibres or other materials, fixed to the bottom of the sheet NOTE see Figure 2 d). 3.5 overall thickness d thickness of the sheet excluding any surface profile DIN EN 1849-2:2010-04 EN 1849-2:2009 (E) 6 3.6 effective thickness deffthickness of the sheet providing the wat
28、erproofing function including any surface texture but excluding any surface profile and backing a)c)b)Key a) homogeneous single layer sheet b) multi-layer sheet c) sheet with internal fabric Figure 1 Structure of the sheet d= deffa) b)c) d)d= deffd= deffdefdKey a) sheet with surface texture on one s
29、ide b) sheet with surface profiles c) sheet with surface texture on both sides d) sheet with backing Figure 2 Types of surfaces DIN EN 1849-2:2010-04 EN 1849-2:2009 (E) 7 4 Sampling Test samples shall be taken in accordance with EN 13416. 5 Determination of thickness 5.1 Principle The thickness is d
30、etermined by a mechanical device unless there is a hindrance by a surface profile and/or backing. In this case, optical measurement shall be used. 5.2 Apparatus 5.2.1 Measuring device Capable of indicating the thickness to an accuracy of 0,01 mm. The measuring surfaces shall be planar and have a dia
31、meter of (10 0,05) mm exerting a pressure of (20 10) kPa on the sheet surface. NOTE The determination of thickness according to EN 12311-2 may also be done with a measuring diameter of (5 0,05) mm exerting a pressure of (20 10) kPa on the sheet surface for the dumbbell type. 5.2.2 Optical device For
32、 sheets with a surface profile and/or backing, capable of indicating the thickness to an accuracy of 0,01mm. 5.3 Test specimens The test specimens shall be square or circular in form, and have an area of (10 000 100) mm2. Cut from the sheet n test specimens (see Table 1) evenly divided over the widt
33、h b of the sheet, the outer specimen (100 10) mm from the edges (see Figure 3). Table 1 Required number of test specimens Width of the sheet b mm 4 701Number of test specimens n - 3 4 5 6 7 8 9 10 5.4 Procedure 5.4.1 General Condition the sample for at least 2 h at (23 2) C and (50 5) % relative hum
34、idity immediately before measuring. Ensure that the sample and the faces of the measuring device are free from contamination for example dust. DIN EN 1849-2:2010-04 EN 1849-2:2009 (E) 8 Record all relevant thicknesses of the sheet once per test specimen to 0,01 mm. Calculation of the mean value and
35、standard deviation is based on the readings of all test specimens. Dimensions in millimetres 2100 10 100 10212XXbKey 1 test piece 2 test specimen b width of the sheet x constant distance between test specimens Figure 3 Example of cutting plan for 3 test specimens 5.4.2 Mechanical measurement Check t
36、he zero point of the measuring device before starting the measurements and recheck after each series of measurements. When determining the thickness, lower the foot gently to avoid deforming the material. 5.4.3 Optical measurement Measure optically the thickness of a sheet with any surface profile a
37、nd/or backing. The small specimens for optical measurements should not be longer than 10 mm. The small specimen shall be cut with a razor-sharp knife from each test specimen. The cut cross section of the specimen shall be installed in an angle of (90 5) to the direction of viewing, using a microscop
38、e. 5.5 Expression of results The overall thickness (d) shall be stated as the mean thickness of all test specimens. The effective thickness (deff) shall be stated as the mean thickness of all test specimens without taking into account any surface profile and/or backing. DIN EN 1849-2:2010-04 EN 1849
39、-2:2009 (E) 9 State all the results of sheet thickness and standard deviation to the nearest 0,01 mm. NOTE Annex A shows an example of a cross-section of a cut membrane. 6 Determination of mass per unit area 6.1 Principle The mass per unit area is determined by weighing a test specimen of known area
40、. (The same specimens as used for determination of thickness may be used). 6.2 Apparatus Balance capable of indicating sample weight to an accuracy of 0,01 g. 6.3 Test specimens The test specimens shall be square or circular in form, and have an area of (10 000 100) mm2. Cut from the sheet n test sp
41、ecimens (see Table 1) evenly divided over the width b of the sheet, the outer specimen (100 10) mm from the edges (see Figure 3). 6.4 Procedure Condition the test specimens for 20 h at (23 2) C and (50 5) % relative humidity immediately before weighing. Weigh the test specimens to the nearest 0,01 g
42、 and calculate the mass per unit area, in g/m2. 6.5 Expression of results The mass per unit area shall be stated as the mean of the calculated values in g/m2rounded to the nearest 5 g/m2. 7 Test report The test report shall contain at least the following information: a) reference to this document (E
43、N 1849-2) and any deviation from it; b) all details necessary to identify the product tested; c) information on sampling in accordance with Clause 4; d) number of specimens tested; e) conditioning atmosphere used; f) presser-foot size for mechanical measurement of the thickness; g) details of prepar
44、ation of test specimens in accordance with 5.3, 5.4.3 and 6.3 respectively; h) test results (mean values and standard deviation to the nearest 0,01 mm) in accordance with 5.5 and 6.5 respectively; i) any non-standard procedures or any peculiarities encountered during testing; j) date of testing. DIN
45、 EN 1849-2:2010-04 EN 1849-2:2009 (E) 10 Annex A (informative) Example of the cut cross-section of a membrane d1d2deff1 mmKey deffeffective thickness Figure A1 Cross-section of a fleece backed membrane at 20X magnification cut with a razor blade NOTE Experience has shown that a magnification of 10X to 20X is sufficient for this test. DIN EN 1849-2:2010-04
