1、BRITISH STANDARD BS EN 1850-2:2001 Flexible sheets for waterproofing Determination of visible defects Part 2: Plastic and rubber sheets for roof waterproofing The European Standard EN 1850-2:2001 has the status of a British Standard ICS 83.140.10; 91.100.50 NO COPYING WITHOUT BSI PERMISSION EXCEPT A
2、S PERMITTED BY COPYRIGHT LAWBS EN 1850-2:2001 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 36352 X
3、National foreword This British Standard is the official English language version of EN 1850-2:2001. 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 respon
4、sibility 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 may be found in the BSI Standards Catalogue under the section entitled “International Stand
5、ards 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 Standa
6、rd 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
7、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 4, 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
8、 publication Amd. No. Date CommentsEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1850-2 May 2001 ICS 91.100.50 English version Flexible sheets for waterproofing Determination of visible defects Part 2: Plastic and rubber sheets for roof waterproofing Feuilles souples dtanchit Dtermination des
9、 dfauts daspect Partie 2: Feuilles dtanchit de toiture plastiques et lastomres Abdichtungsbahnen Bestimmung sichtbarer Mngel Teil 2: Kunststoffbahnen und Elastomerbahnen fr Dachabdichtungen This European Standard was approved by CEN on 2 June 2000. CEN members are bound to comply with the CEN/CENELE
10、C 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 m
11、ember. 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 member
12、s 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 COMIT EUROPEN DE NORMALISATION
13、 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 reserved worldwide for CEN national Members. Ref. No. EN 1850-2:2001 EPage 2 EN 1850-2:2001 BSI 07-2001 Contents Page Foreword .3 Introduction3 1 Sc
14、ope .3 2 Normative references.3 3 Terms and definitions.3 4 Principle .4 5 Sampling and conditioning .4 6 Procedure.4 7 Test report4Page 3 EN 1850-2:2001 BSI 07-2001 Foreword This European Standard has been prepared by Technical Committee CEN/TC 254, Flexible sheets for waterproofing, the Secretaria
15、t of which is held by BSI. This document has to be implemented at national level, either by publication of an identical text or by endorsement, by November 2001, and conflicting national standards have to be withdrawn by July 2002. According to the CEN/CENELEC Internal Regulations, the national stan
16、dards organizations of the following countries are bound to implement this document: 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 E
17、uropean 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 w
18、orks. 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 a method for the determination of the visible defects in plastic and rubber sheets for roof
19、waterproofing, which could influence the functional behaviour of these sheets. 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 publicatio
20、ns 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 amendme
21、nts). EN 13416 Flexible sheets for waterproofing Bitumen, plastic and rubber sheets for roof waterproofing Rules for sampling. 3 Terms and definitions For the purpose of this European Standard, the following terms and definitions apply. 3.1 blister elevation of the surface of varied contour and dime
22、nsions, with a cavity beneath it 3.2 crack fissure that penetrates the external surface of the material or its entire thickness, the rubber or plastic material being completely separated between the crack walls 3.3 hole opening through the sheet, which may allow the passage of water 3.4 scratch sing
23、le sided damage to the surface caused by external meansPage 4 EN 1850-2:2001 BSI 07-2001 3.5 indentation small hollow or depression in the surface of the sheet 3.6 void enclosed cavity of an undefined shape, containing air or some other gas NOTE The term bubble refers to a more or less spherical voi
24、d. 3.7 inclusion extraneous body enclosed within the mass. 4 Principle A part of a selected roll of plastic or rubber sheet is unrolled on a flat surface and examined for defects on both surfaces and at a cut surface. 5 Sampling and conditioning 5.1 Sampling The plastic or rubber sheet to be tested
25、shall be complete and undamaged rolls selected in accordance with EN 13416. 5.2 Conditioning of samples Generally ageing or conditioning is not required to be carried out and examination shall be made under ambient conditions. In case of dispute, the test shall be conducted at (23 2) C after conditi
26、oning for at least 20 h at (23 2) C. 6 Procedure The selected roll shall be laid on a flat surface. The first 10 m of the roll of material under examination is carefully unrolled, top surface uppermost, and examined over the whole surface with the naked eye for the presence of blisters, cracks, hole
27、s, scratches, indentations, or any other noticeable defect. The roll is then carefully turned over and examined on the underside for the same visible defects. Cut the roll near the end across the full width and examine the cut surface for the presence of voids or inclusions. 7 Test report The test r
28、eport shall contain at least the following information: a) a reference to this European Standard (EN 1850-2) and any deviation from it; b) all details necessary to identify the product tested; c) any non-standard procedures or any peculiarities encountered during testing; d) the presence of any blis
29、ters, cracks, holes, scratches or indentations; e) the presence of any inclusions or voids in the cut surface; f) the date of testing.blankBS EN 1850-2:2001 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing Briti
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