BS EN 1848-2-2001 Part2 Determination of length, width,straightness and flatness.pdf

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 WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Licensed Copy: Southeast University User, Southeast University, Fri Oct 28 08:32:25 BST 2005, Uncontrolled Copy, (c) BSI BS 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 07-2001 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 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 international 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 include 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 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 6, an inside back cover and 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: Southeast University User, Southeast University, Fri Oct 28 08:32:25 BST 2005, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE 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 rubber sheets for roof waterproofing Feuilles souples d'étanchéité Détermination de la longueur, de la largeur, de la rectitude et de la planéité Partie 2: Feuilles d'étanchéité de toiture plastiques et élastomères Abdichtungsbahnen Bestimmung der Länge, Breite, Geradheit und Planlage Teil 2: Kunststoff- und Elastomerbahnen für 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 lists 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 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 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 COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR 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 1848-2:2001 E Licensed Copy: Southeast University User, Southeast University, Fri Oct 28 08:32:25 BST 2005, Uncontrolled Copy, (c) BSI Page 2 EN 1848-2:2001 © BSI 07-2001 Contents Page Foreword.3 Introduction3 1Scope3 2Normative references3 3Definitions4 4Sampling.4 5Determination of length 4 6Determination of width5 7Determination of straightness and flatness .5 8Precision of the test methods6 9Test report6 Licensed Copy: Southeast University User, Southeast University, Fri Oct 28 08:32:25 BST 2005, Uncontrolled Copy, (c) BSI ? Page 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 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 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 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 to be used in conjunction with European Standard, Definition and Characteristics, for plastic and rubber sheets for roof waterproofing. 1Scope This European Standard specifies methods for the determination of length, width, straightness and flatness of plastic and rubber sheets for roof waterproofing supplied in rolls. 2Normative 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 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, plastic and rubber sheets for roof waterproofing Rules for sampling. Licensed Copy: Southeast University User, Southeast University, Fri Oct 28 08:32:25 BST 2005, Uncontrolled Copy, (c) BSI ? Page 4 EN 1848-2:2001 © BSI 07-2001 3Terms 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 dimension 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 4Sampling Test samples shall be taken in accordance with EN 13416. 5Determination of length 5.1Reference 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 least 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 direction 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 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 end of the roll is reached, marking this, if necessary, as before. Measure the final length to the nearest 5 mm. 5.2Alternative 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 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. Licensed Copy: Southeast University User, Southeast University, Fri Oct 28 08:32:25 BST 2005, Uncontrolled Copy, (c) BSI ? Page 5 EN 1848-2:2001 © BSI 07-2001 5.3Expression of results Report the length of the roll, in metres, as the sum of all the readings, rounded to the nearest 10 mm. 6Determination of width 6.1Apparatus 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 the specified temperature. 6.2Procedure 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 are 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. 6.3Expression of results Calculate the mean of the recorded widths and report the value obtained as the average width to the nearest 1 mm. Report also the minimum width recorded. 7Determination of straightness and flatness 7.1Apparatus 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 g and p to an accuracy of 1 mm at the specified temperature. 7.2Procedure 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 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. 7.3Expression of results Report the straightness and the flatness of the roll as distances (g ? 100) and p, in mm, measured in 7.2, rounded to the nearest 10 mm. Licensed Copy: Southeast University User, Southeast University, Fri Oct 28 08:32:25 BST 2005, Uncontrolled Copy, (c) BSI ? Page 6 EN 1848-2:2001 © BSI 07-2001 Dimensions in millimetres Figure 1 Principle of straightness measurement 8Precision of the test methods No information is available at this time. 9Test report The test report shall contain at least the following information: 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, p, in mm; h)any non-standard procedures and any peculiarities encountered during testing; i)the date of testing. Licensed Copy: Southeast University User, Southeast University, Fri Oct 28 08:32:25 BST 2005, Uncontrolled Copy, (c) BSI ? blank Licensed Copy: Southeast University User, Southeast University, Fri Oct 28 08:32:25 BST 2005, Uncontrolled Copy, (c) BSI ? 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