1、BRITISH STANDARD BS EN 1848-2:2001 Flexible sheets for waterproofing Determination of length, width, straightness and flatness Part 2: Plastic and rubber sheets for roof waterproofing The European Standard EN 1848-2:2001 has the status of a British Standard ICS 83.140.10; 91.100.50 NO COPYING WITHOU
2、T BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS EN 1848-2:2001 This British Standard, having been prepared under the direction of the Sector Committee for Building and Civil Engineering, was published under the authority of the Standards Committee and comes into effect on 15 July 2001 BSI 07
3、-2001 ISBN 0 580 36353 8 National foreword This British Standard is the official English language version of EN 1848-2:2001. The UK participation in its preparation was entrusted by Technical Committee B/546, Flexible sheets for waterproofing, to Subcommittee B/546/2, Roof sheeting and sealing sheet
4、ing, 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 international or European publications referred to in this document may be found in the BSI Standards Cat
5、alogue 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 include all the necessary provisions of a contract. Users of British Standards are responsible for their
6、 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 any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; mo
7、nitor 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 6, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when
8、 the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1848-2 May 2001 ICS 91.100.50 English version Flexible sheets for waterproofing Determination of length, width, straightness and flatness Part 2: Plastic and
9、rubber sheets for roof waterproofing Feuilles souples dtanchit Dtermination de la longueur, de la largeur, de la rectitude et de la planit Partie 2: Feuilles dtanchit de toiture plastiques et lastomres Abdichtungsbahnen Bestimmung der Lnge, Breite, Geradheit und Planlage Teil 2: Kunststoff- und Elas
10、tomerbahnen fr Dachabdichtungen This European Standard was approved by CEN on 2 June 2000. 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 l
11、ists and bibliographical references concerning such national standards may be obtained on application to the 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 respo
12、nsibility 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 the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Nethe
13、rlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2001 CEN All rights of exploitation in any form and by any means reserv
14、ed worldwide for CEN national Members. Ref. No. EN 1848-2:2001 EPage 2 EN 1848-2:2001 BSI 07-2001 Contents Page Foreword.3 Introduction 3 1 Scope 3 2 Normative references3 3 Definitions 4 4 Sampling.4 5 Determination of length 4 6 Determination of width5 7 Determination of straightness and flatness
15、.5 8 Precision of the test methods 6 9 Test report6Page 3 EN 1848-2:2001 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 Standard shall be given the status of a
16、national standard, either by publication of an identical text or by endorsement, at the latest by November 2001, and conflicting national standards shall be withdrawn at the latest by July 2002. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
17、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 United Kingdom. Introduction This European Standard is intended
18、 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 such products and installed in the works. This test is intended
19、to be used in conjunction with European Standard, Definition and Characteristics, for plastic and rubber sheets for roof waterproofing. 1 Scope This European Standard specifies methods for the determination of length, width, straightness and flatness of plastic and rubber sheets for roof waterproofi
20、ng supplied in rolls. 2 Normative references This European Standard incorporates, by dated or undated references, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent
21、 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 13416, Flexible sheets for waterproofing Bitumen
22、, plastic and rubber sheets for roof waterproofing Rules for sampling.Page 4 EN 1848-2:2001 BSI 07-2001 3 Terms and definitions For the purposes of this European Standard, the following terms and definitions apply: 3.1 length dimension of the roll measured in the manufacturing direction 3.2 width di
23、mension of the roll measured at right angles to the manufacturing direction 3.3 straightness deviation of the longitudinal edge of the roll from a straight line 3.4 flatness deviation of the top surface of the roll from a flat plane when it is unrolled and laid out on a flat surface 4 Sampling Test
24、samples shall be taken in accordance with EN 13416. 5 Determination of length 5.1 Reference method 5.1.1 Apparatus Flat surface, e.g. table or floor, not less than 10 m long and at least as wide as the roll to be tested. Both longitudinal edges of the surface shall be marked off at 1 m lengths, at l
25、east one of these lengths, preferably at one end of the surface, being subdivided into 1 mm divisions allowing measurement of the roll to an accuracy of 5 mm at the specified temperature. 5.1.2 Procedure Mark the cut end of the roll, if necessary, so that it is at right angles to the length directio
26、n of the roll, such marking being confined to the minimum, which is necessary to effect this. With the marked end of the roll aligned to the zero mark on the surface (5.1.1), unroll the material along the surface so that no tension is introduced at a temperature of (23 5) C. On reaching the limit of
27、 the surface, mark the back of the roll by some suitable method on both edges to coincide with a known length. Re-roll the portion that has been measured. Lay out, free from tension, a further portion of the unmeasured length and measure from the marked edges as before. Repeat this process until the
28、 end of the roll is reached, marking this, if necessary, as before. Measure the final length to the nearest 5 mm. 5.2 Alternative method As an alternative to the manual technique as described in 5.1, any suitable mechanical, electromechanical or photoelectric means of measuring the length that gives
29、 results equivalent to these obtained using the method in 5.1 may be used. In cases of dispute the reference method in 5.1 shall be used.Page 5 EN 1848-2:2001 BSI 07-2001 5.3 Expression of results Report the length of the roll, in metres, as the sum of all the readings, rounded to the nearest 10 mm.
30、 6 Determination of width 6.1 Apparatus 6.1.1 Flat surface, e.g. table or floor not less than 10 m long and at least as wide as the roll to be tested. 6.1.2 Measuring tape or rule of length greater than the width of the roll to be measured, permitting measurements to be made to the nearest 1 mm at t
31、he specified temperature. 6.2 Procedure While the roll is unrolled on the surface (6.1.1) and free of tension using the measuring device (6.1.2), measure and record, at intervals of 10 m, at a temperature of (23 5) C, the width of the roll to the nearest 1 mm. Ensure that all measurements of width a
32、re taken at right angles to the longitudinal direction of the roll. For rolls less than 20 m long, measure the width at three positions, i.e. near the two ends and in the middle of the roll. 6.3 Expression of results Calculate the mean of the recorded widths and report the value obtained as the aver
33、age width to the nearest 1 mm. Report also the minimum width recorded. 7 Determination of straightness and flatness 7.1 Apparatus 7.1.1 Flat surface, e.g. table or floor, not less than 10 m long and at least as wide as the roll to be tested. 7.1.2 Measuring device, capable of measuring the distance
34、g and p to an accuracy of 1 mm at the specified temperature. 7.2 Procedure Unroll the roll along the surface so that no tension is introduced at a temperature of (23 5) C over a length of at least the first 10 m. After (30 5) min measure the straightness as the maximum distance g, in mm, between the
35、 edge of the roll and the straight line AB (10 m) (see Figure 1). Measure the flatness as the maximum distance p, in mm, between the top of the edge undulations and the flat surface. 7.3 Expression of results Report the straightness and the flatness of the roll as distances (g 100) and p, in mm, mea
36、sured in 7.2, rounded to the nearest 10 mm.Page 6 EN 1848-2:2001 BSI 07-2001 Dimensions in millimetres Figure 1 Principle of straightness measurement 8 Precision of the test methods No information is available at this time. 9 Test report The test report shall contain at least the following informati
37、on: a) a reference to this European Standard (EN 1848-2) and any deviation from it; b) all details necessary to identify the product tested; c) the length of the roll in m; d) the individual measured values of the width in m; e) the average width in m; f) the straightness, g, in mm; g) the flatness,
38、 p, in mm; h) any non-standard procedures and any peculiarities encountered during testing; i) the date of testing.blankBS EN 1848-2:2001 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It pr
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