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1、BRITISH STANDARD BS EN 1849-2:2001 Flexible sheets for waterproofing Determination of thickness and mass per unit area Part 2: Plastic and rubber sheets for roof waterproofing The European Standard EN 1849-2:2001 has the status of a British Standard ICS 83.140.10; 91.100.50 NO COPYING WITHOUT BSI PE
2、RMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 05:32:10 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 1849-2:2001 This British Standard, having been prepared under the direction of the Sector Committee for Building and Civil Engineering, was p
3、ublished under the authority of the Standards Committee and comes into effect on 15 July 2001 BSI 07-2001 ISBN 0 580 36354 6 National foreword This British Standard is the official English language version of EN 1849-2:2001. The UK participation in its preparation was entrusted by Technical Committe
4、e B/546, Flexible sheets for waterproofing, to Subcommittee B/546/2, Roof sheeting and sealing sheeting, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement inter
5、national or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to incl
6、ude all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible European committee
7、any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 7 and
8、a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 05:32:10 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EU
9、ROPENNE EUROPISCHE NORM EN 1849-2 May 2001 ICS 91.100.50 English version Flexible sheets for waterproofing Determination of thickness and mass per unit area Part 2: Plastic and rubber sheets for roof waterproofing Feuilles souples dtanchit Dtermination de lpaisseur et de la masse surfacique Partie 2
10、: Feuilles dtanchit 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 2 June 2000. CEN members are bound to comply with the CEN/CENELEC Inte
11、rnal 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 such national standards may be obtained on application to the Management Centre or to any CEN member.
12、 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 own language and notified to the Management Centre has the same status as the official versions. CEN members are
13、the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROP
14、ISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2001 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1849-2:2001 E Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 05:32:10 GMT+00:00 2006, Unco
15、ntrolled Copy, (c) BSI Page 2 EN 1849-2:2001 BSI 07-2001 Contents Page Foreword .3 Introduction3 1Scope.3 2Normative references.3 3Terms and definitions.3 4Sampling 5 5Determination of thickness.5 6Determination of mass per unit area7 7Precision of the test methods.7 8Test report7 Licensed Copy: she
16、ffieldun sheffieldun, na, Mon Oct 30 05:32:10 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 3 EN 1849-2:2001 BSI 07-2001 Foreword This European Standard has been prepared by Technical Committee CEN/TC 254, Flexible sheets for waterproofing, the Secretariat of which is held by BSI. This European St
17、andard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by the month of November 2001, and conflicting national standards shall be withdrawn at the latest by the month of July 2002. According to the CEN/CENELEC Internal Reg
18、ulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the
19、 United Kingdom. Introduction This European Standard is intended for characterization 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
20、such products and installed in the works. This test is intended to be used in conjunction with a European Standard on definition and characteristics for plastic and rubber sheets for roof waterproofing. 1 Scope This European Standard specifies methods for the determination of the thickness and mass
21、per unit area of plastic and rubber sheets for roof waterproofing. 2 Normative references This European Standard incorporates by dated or undated reference provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed h
22、ereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references, the latest editions of the publication referred to apply (including amendments). EN 13416F
23、lexible sheets for waterproofing Bitumen, plastic and rubber sheets for roof waterproofing Rules for sampling. 3 Terms and definitions For the purposes of this European Standard, the following terms and definitions apply. 3.1 surface texture textured pattern on one or both surfaces of the sheet crea
24、ting a difference between the effective and overall thickness not exceeding 0,1 mm see Figures 2 a) and 2 c) 3.2 surface profile (surface structure) raised area on the surface of the sheet creating a difference between the effective and overall thickness exceeding 0,1 mm see Figure 2 b) Licensed Cop
25、y: sheffieldun sheffieldun, na, Mon Oct 30 05:32:10 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 4 EN 1849-2:2000 BSI 07-2001 3.3 internal fabric layer of woven or non-woven fabric of synthetic or mineral fibres incorporated in the sheet see Figure 1c) This layer may or may not constitute reinfor
26、cement. 3.4 backing layer of woven or non-woven fabric of synthetic or mineral fibres or other materials, fixed to the bottom of the sheet see Figure 2 d) 3.5 overall thickness (e) thickness of the sheet excluding any surface profile 3.6 effective thickness (eeff) thickness of the sheet providing th
27、e waterproofing function including any surface texture but excluding any surface profile and backing Key a)Homogeneous single layer sheet b)Multi-layer sheet c)Sheet with internal fabric Figure 1 Structure of the sheet a)b) c) Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 05:32:10 GMT+00:00
28、 2006, Uncontrolled Copy, (c) BSI Page 5 EN 1849-2:2001 BSI 07-2001 Key a)Sheet with surface texture on one side b)Sheet with surface profiles c)Sheet with surface texture on both sides d)Sheet with backing Figure 2 Types of surfaces 4 Sampling Test samples shall be taken in accordance with EN 13416
29、. 5 Determination of thickness 5.1 Principle The thickness is determined 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 0,01 mm. The
30、measuring surfaces shall be planar and have a diameter of 10 mm exerting a pressure of 20 kPa on the sheet surface. 5.2.2 Optical device (for sheets with a surface profile and/or backing) capable of indicating the thickness to 0,01 mm. 5.3 Test specimens The test specimens shall be square or circula
31、r in form, and have an area of (10 000 ? 100) mm2. Cut from the sheet x test specimens evenly divided over the width of the sheet, the outer specimen (100 ? 10) mm from the edges (x equals the width of the sheet in millimetres divided by 500, rounded upwards, with a minimum of three)(see Figure 3).
32、e = e e f f e = e e f f e = e e f f e e f fe b ) d ) a ) c ) Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 05:32:10 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 6 EN 1849-2:2000 BSI 07-2001 5.4 Procedure Condition the sheet for at least 2 h at (23 ? 2) ?C and (50 ? 5) % relative humidity
33、 immediately before measuring. Ensure that the sheet and the faces of the measuring device are free from contamination for example dust. Record all relevant thicknesses of the sheet once per test specimen to 0,01 mm. Calculation of the mean value and standard deviation is based on the readings of al
34、l test specimens. Dimensions in millimetres Key 1 Test piece 2 Test specimen w Width of the sheet Figure 3 Cutting plan for test specimens 5.4.1 Mechanical measurement Check the zero point of the measuring device before starting the measurements and recheck after each series of measurements. When de
35、termining the thickness, lower the foot gently to avoid deforming the material. 5.4.2 Optical measurement Measure optically the thickness of a sheet with any surface profile and/or backing. 5.5 Expression of results The sheet overall thickness (e) shall be stated as the mean thickness of all test sp
36、ecimens. The sheet effective thickness (eeff) shall be stated as the mean thickness of all test specimens without taking into account any surface profile and/or backing. State all the results of sheet thickness and standard deviation to the nearest 0,01 mm. w 100 10 ?500?500 100 10 222 1 Licensed Co
37、py: sheffieldun sheffieldun, na, Mon Oct 30 05:32:10 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 7 EN 1849-2:2001 BSI 07-2001 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. (The same specimens as used for determ
38、ination of thickness may be used.) 6.2 Apparatus Balance capable of indicating sample weight to 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 x test specimens evenly divided over the width of the sheet, t
39、he outer specimen (100 ? 10) mm from the edges (x equals the width of the sheet in millimetres divided by 500, rounded upwards, with a minimum of three)(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. Wei
40、gh the test specimens to the nearest 0,01 g 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/m2 rounded to the nearest 5 g/m2. 7 Precision of the test methods No information is available at this
41、time. 8 Test report The test report shall contain at least the following information: a) reference to this European Standard (EN 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) details of preparati
42、on of test specimens in accordance with clauses 5.3 and 6.3 respectively; e) the test results in accordance with clauses 5.5 and 6.5 respectively; f) any non-standard procedures or any peculiarities encountered during testing; g) the date of testing. Licensed Copy: sheffieldun sheffieldun, na, Mon O
43、ct 30 05:32:10 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 1849-2:2001 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the internati
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