1、BRITISH STANDARD D Lb24bb9 0829325 5Tb SEN 849-1:2000 Flexible sheets for waterproofing - Determination of thickness and mass per unit area- Part l: Bitumen sheets for roof waterproofing The European Standard EN 1849-1:1999 has the status of a British Stanard ICs 91.100.50 NO COPYING WITIIOUT BSI PE
2、RMISSION EXCEPT AS PERMITTED BY COPYLIIGHT LAW bb24bb9 082b2b 432 BS EN 1849-1:2000 been prepared under the direction of the Builduig and Civil bd. No. Date Engineering Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 February Zoo0 O BSI 02-2
3、000 ISBN O 580 35744 9 This British Standard is the officiai English ianguage version of EN 1849-1: 1999. The UK participation in its preparation was entrusted to Technid Committee B/546, Flexible sheetc for waterproofing, which has the responsibility to: Comments - aid enquirers to understand the t
4、ext; - present to the responsible European committee any enquiries on the - monitor related international and European developments and promulgate interpretation, or proposals for change, and keep the UK interests informed; them in the UK A list of osganhtions represented on this committee can be ob
5、tained on request to its semkuy. Cross-references The British Standards which implement intemational or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “Intedonal Standards Correspondence Index“, or by using the “Find“ facilit
6、y of the BSI Standards Electronic Catalogue. A British Standard does not purport to include ail 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 legai obligatio
7、ns. 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 notice displayed in this document indicates when the document was last issued. , m lb24hh9 0829327 379 m EUROPEAN STANDARD EN 1
8、849-1 NORME EUROPENNE EUROPISCHE NORM November 1999 ICs 91 .I 00.50 English version Flexible sheets for waterproofing - Determination of thickness and mass per unit area - Part I: Bitumen sheets for roof waterproofing Feuilles souples dtanchit- Dtermination de lpaisseur et de la masse surfacique - P
9、artie 1 : Feuilles dtanchit de toiture bitumineuses Abdichtungsbahnen - Bestimmung der Dicke und der flachenbezogenen Masse - Teil 1: Bitumenbahnen fur Dachabdichtungen This European Standard was approved by CEN on 30 September 1999. CEN members are bound to comply with the CENICENELEC Intemal Regul
10、ations which stipulate the conditions for giving this EuropBn Standard the status of a national standard without any alteration. Up-todate lists and bibliographical references concerning sich national standards may be obtained on application to the Central Secretariat or to any CEN member. This Euro
11、pean Standard exists in three official versions (English, French, German). A version in any other language made by trmslation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as tie official versions. CEN members are the natio
12、nal standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Noway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION EUROPISCHES KOMITEE FR NORMUNG COMIT EUROPEN D
13、E NORMALISATION Central Secretariat: rue de Stassart, 36 6-1050 Brussels Q 1999 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1849-1:1999 E Page 2 EN 1849-1:1999 Contents Foreword 1 Scope 2 Normative references 3 Definitions 4 De
14、termination thickness 5 6 Test report Determination of mass per unit area 1b2Vbb9 0829128 205 m Page 3 3 3 3 4 5 6 c 6BSI 02-2000 m Lb24hh 0827329 L41 Page 3 EN 1849-111999 Foreword This European Standard has been prepared by Technical Committee CENTTC 254, Flexible sheets for waterproofing, the Sec
15、retariat 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 May 2000, and conflicting national standards shall be withdrawn at the latest by September 2001. According to the
16、CENICENELEC 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, Swe
17、den, Switzerland and the United Kingdom. 1 Scope This European Standard specifies a method for the determination of thickness and mass per unit area of bitumen sheets for roof waterproofing. The measurement of thickness is appropriate for most bitumen sheets including sheets with a factory applied m
18、ineral finish The determination of thickness is not applicable to sheets with pronounced surface texture or to sheets with a substantial fibrous backing. Where it is required to characterize these products, mass per unit area should be used instead. The determination of mass per unit area serves to
19、verify the value stated by the manufacturer for information and is not applicable to perforated materials. 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 t
20、he text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies
21、. prEN 13416 Flexible sheets for waterproofing - Bitumen, plastic and rubber sheets for roof waterproofing - Rules for sampling 3 Definitions For the purpose of this standard, the definitions indicated in 3.1 to 3.5 apply. 3.1 thickness the dimension normal to the surface of the sheet 3.2 pronounced
22、 surface texture a textured pattern or emboss on one or both surfaces influencing the thickness by more than 10 % 3.3 substantial fibrous backing a layer of woven or non-woven fabric of synthetic fibres, weighing more than 80 g/m2, fixed to the bottom of the sheet 3.4 emboss a textured pattern inten
23、tionally impressed into one or both surfaces of the sheet during the manufacturing process 3.5 selvedge an area of waterproofing sheet left free of granules or similar surface protection to aid the jointing of laps ) Standard in preparation. 8BSI 02-2000 3b24b69 0829330 963 Page 4 EN 1849-1:1999 4 D
24、s?om?in Liiuiiieii aiioai iu k esied siidii La xiar;iad ri etCCordanCe with prEN 13416. 4.3.2 Preparation of test specimens A test specimen at least 100 mm long and to the full width of the sheet shall be taken from the sample. 4.3.3 Conditioning of test specimens Generally no ageing or conditioning
25、 shall be camed out and measurements shall be made under ambient conditions. In case of dispute, the tests should be carried out at (23 f 2) OC after conditioning for at least 20 h at (23 f 2) “C. 4.4 Procedure Ensure that the sheet and the faces of the measuring device are free from contamination.
26、Check the 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 test specimen. Measure and record the thickness in 10 places evenly distributed across the width o
27、f the sheet, the outer measurements being made 100 mm in from each edge of the sheet. 4.5 Expression of results 4.5.1 Calculation The thickness is calculated as the mean of the 1 O individual recorded measurements carried out in accordance with 4.4, rounded and expressed to the nearest 0,l mm. 4.5.2
28、 Precision The precision is not specified by this standard. It is assumed that the measured thickness cannot be carried out to a precision greater than 0,l mm. QBSI 02-2000 Page 5 EN 1849-1 :I 999 5 Determination of mass per unit area 5.1 Principle Test specimens are cut from the test piece and weig
29、hed in order to determine a mean value of mass per unit area. 5.2 Apparatus Weighing device, capable of weighing a test specimen to the nearest 0,Ol g. 5.3 Sampling and preparation of test specimens 5.3.1 Sampling A complete undamaged roll of the bitumen sheet to be tested shall be selected in accor
30、dance with prEN 13416. 5.3.2 Preparation of test specimens A test piece at least 0,4 m long and the full width of the sample shall be cut from the sample. Cut from this test piece three test specimens of square or circular form, each having an area of 100 mm f 1 %. One should be cut from the centre
31、and the other two symmetrical with the first, along a line drawn diagonally between opposite corners of the test piece, in such a manner that their external edge is approximately 100 mm from the edge, taking care to avoid any selvedge that may exist (see Figure 1 ). Dimensions in millimetres 1 - pro
32、duct width 2, 3,4 -test specimens 5 - selvedge Figure 1 : Example showing square test specimens OBSI 02-2000 9 lib24bb9 0829332 73b Page 6 EN 1849-1 : 1999 5-33 Cwr;i;Qning of test specimens The test specimens shall be conditioned for at least 20 h at at least (23 f 2)”C and (50 I 5) YO relative hum
33、idity. 5.4 Procedure Weigh each test specimen using the weighing device and record the weight to the nearest 0,l g. 5.5 Expression of results 5.5.1 Calculation Calculate the mass per unit area, m, of the sheet, expressed in kg/m2, using the following equation: where ml is the mass of the first test
34、specimen, in g; m;, is the mass of the second test specimen, in g; m3 is the mass of the third test specimen, in g. 5.5.2 Precision The precision is not specified by this standard. It is assumed that the mass per unit area cannot be made to a precision of greater than 10 g/d. 6 Testreport The test r
35、eport shall include at least the following information: a) all details necessary to identify the product tested; b) a reference to this European Standard (EN 1849-1) ani any deviation from it; c) information on sampling and details on preparation of test specimens in accordance with4.3 and 5.3; d) t
36、he test results in accordance with 4.5 and 5.5; e) dates of the test). QBSI 02-2000 Lb24bb9 0823133 b72 BS EN 1849-1:2000 BSI 389ChiswickKighRoa.d London w4 4AL Tnctitiition AA10 VA VU VA BSI is the independent national body responsible for preparing British Standards. It presents the UK view on sta
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