1、BRITISH STANDARDBS EN 12691:2006Flexible sheets for waterproofing Bitumen, plastic and rubber sheets for roof waterproofing Determination of resistance to impactThe European Standard EN 12691:2006 has the status of a British StandardICS 91.100.50g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3
2、g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 12691:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 October 2006 BSI 2006ISBN 0 5
3、80 49370 9National forewordThis British Standard was published by BSI. It is the UK implementation of EN 12691:2006. It supersedes BS EN 12691:2001 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee B/546, Flexible sheets for waterproofing and water vapou
4、r control.A list of organizations represented on B/546 can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from
5、 legal obligations. Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 12691March 2006ICS 91.100.50 Supersedes EN 12691:2001 English VersionFlexible sheets for waterproofing - Bitumen, plastic and rubbersheets for roof waterproofing - Determina
6、tion of resistance toimpactFeuilles souples dtanchit - Feuilles dtanchit detoitures bitumineuses, plastiques et lastomres -Dtermination de la rsistance au chocAbdichtungsbahnen - Bitumen-, Kunststoff- undElastomerbahnen fr Dachabdichtungen - Bestimmung desWiderstandes gegen stoartige BelastungThis E
7、uropean Standard was approved by CEN on 12 January 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
8、concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its ow
9、n language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg
10、, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2006 CEN All rights of ex
11、ploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12691:2006: EEN 12691:2006 (E) 2 Contents Page Foreword3 1 Scope 5 2 Normative references 5 3 Terms and definitions .5 4 Principle5 5 Apparatus .5 6 Sampling.10 7 Preparation of test specimen .10 8 Procedu
12、re .10 9 Expression of results 11 10 Test report 11 EN 12691:2006 (E) 3 Foreword This European Standard (EN 12691:2006) 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 o
13、f a national standard, either by publication of an identical text or by endorsement, at the latest by September 2006, and conflicting national standards shall be withdrawn at the latest by September 2006. This European Standard supersedes EN 12691:2001. In order to receive more precise test results
14、a revision of the test procedure was necessary. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Gree
15、ce, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 12691:2006 (E) 4 Introduction This European Standard is intended for characterisation and classification o
16、f bitumen, 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
17、conjunction with European Standards “Definitions and characteristics” for bitumen sheets and for plastic and rubber sheets for roof waterproofing. EN 12691:2006 (E) 5 1 Scope This European Standard specifies a test for puncture by impact on sheets for roof waterproofing. Mechanical stress on waterpr
18、oofing sheets ranges from static long-term loads to dynamic short-term loads. This method represents the dynamic category of load where puncture may be caused by impact. This European Standard may also be applied for other purposes of waterproofing. 2 Normative references The following referenced do
19、cuments are indispensable for the application of this European Standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 13163:2001, Thermal insulation products for buildings Factory ma
20、de products of expanded polystyrene (EPS) Specification EN 13416:2001, Flexible 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 top
21、 surface upper side of the sheet as used in-situ. It is usually the inside of the roll. 4 Principle The test specimen is struck on the top surface of the sheet by a free falling drop mass with a puncturing tool. The test specimen is lying on a hard support (method A) and if required additionally on
22、a soft support (method B). After the impact the test specimen is tested for leakage. 5 Apparatus The testing is performed using a test apparatus, which enables vertically falling of the drop mass and consists of the parts indicated in 5.1 to 5.7 and can be used with a hard support (method A) or a so
23、ft support (method B). 5.1 Stand The stand can be constructed for free falling of the drop mass or optionally for rail guided falling and should be at least as long (high) as the maximum drop height to be tested (for most practical purposes 2 m will be sufficient). An example for a guide rail for th
24、e falling drop mass is given in Figure 1. EN 12691:2006 (E) 6 Dimensions in millimetres Key 1 Guide rail (slitted square tube e.g.) 2 Drop mass d Diameter between 25 mm to 30 mm g Gap between 0,5 mm to 1 mm Figure 1 Guide rail and drop mass / cross section (example) 5.2 Drop mass and puncturing tool
25、 Cylindrical steel drop mass with a fixed puncturing tool. The weight of the drop mass including the puncturing tool shall be (500 5) g; the diameter should be preferable between 25 mm to 30 mm. The puncturing tool shall be made according to the following specifications: formed in steel material and
26、 firmly fixed to the drop mass; hardened to 50 HRC; spherical formed with a diameter of (12,7 0,1) mm; shaft diameter of (10 0,1) mm; shaft length about 40 mm. See example in Figure 2. 5.3 Release mechanism Release mechanism (trigger) with a setting device for variable drop height from 200 mm to at
27、least 2 000 mm in increments of: 50 mm between 200 mm and 500 mm; 100 mm between 500 mm and 1 000 mm; 250 mm for drop heights above 1 000 mm. The drop height is measured from the bottom of the puncturing tool to the surface of the test specimen. EN 12691:2006 (E) 7 Dimensions in millimetres Key 1 Re
28、lease mechanism 2 Drop mass 3 Puncturing tool a Length according to total weight of (500 5) g b Action: push to release Figure 2 Drop mass with puncturing tool and release (for guide rail) (example) 5.4 Ballast ring Ballast ring in steel with mass of at least 2 000 g with inner diameter of approxima
29、tely 100 mm (see Figure 3). 5.5 Support 5.5.1 Methods A and B a) For all products: substrate Al (see 5.5.2); b) For different products (only if required): substrate EPS (see 5.5.3). Type of substrate has to be indicated with the test results. EN 12691:2006 (E) 8 5.5.2 Aluminium plate (method A) Alum
30、inium plate of the quality AlMgSilF32 with the size of about 300 mm x 300 mm x 3 mm. 5.5.3 Standard expanded polystyrene panel (method B) Standard expanded polystyrene panel with a cut surface and size of about 300 mm x 300 mm x 50 mm; (EPS-Quality CS(10)150, see EN 13163). 5.6 Counter mass Counter
31、mass of minimum 400 mm x 400 mm x 50 mm concrete slab with an even and unmarked steel support plate of about 300 mm x 300 mm x 10 mm fixed to the surface of the concrete slab (see Figure 3). EN 12691:2006 (E) 9 Dimensions in millimetres a) Method A b) Method B Key 1 Ballast ring 2 Test specimen 3 Su
32、pport (aluminium plate for method A or polystyrene for method B) 4 Steel plate (h = 10 mm) with even and unmarked surface 5 Concrete counter mass Figure 3 Counter mass and ballast ring 5.7 Puncture testing device Vacuum or pressure device for the verification of a possible puncture (see example in F
33、igure 4). EN 12691:2006 (E) 10 Dimensions in millimetres Key 1 Glass plate 2 Support 3 Air permeable layer 4 Test specimen 5 Transparent plastic tube (perforated) 6 Gasket Figure 4 Vacuum device (example) 6 Sampling Samples shall be taken in accordance with EN 13416. 7 Preparation of test specimen A
34、 minimum of five test specimens of at least 150 mm x 150 mm should be taken from different positions across the width and the length of the roll excluding 100 mm at the edges. The test specimen shall be cleaned on both sides with filter paper to remove adhered solid remnants and surface dirt. The te
35、st specimens shall be conditioned for at least 24 h at the specified test condition. 8 Procedure Testing is carried out at a temperature of (23 2) C. For testing, the test specimens shall be placed on the support with the top surface upwards and pressed down by the ballast ring. The test is performe
36、d by releasing the drop mass from the drop height to be tested. The puncturing tool shall hit the centre of the test specimen in the middle of the ballast ring. Preliminary tests can be made to indicate a drop height around which perforation could be expected by increasing/reducing the drop height u
37、ntil perforation is noticed/avoided (increments of drop height see 5.3). EN 12691:2006 (E) 11 For every test a new test specimen shall be used and the support shall not be exposed to impact at the same point more than once. That requires for each impact for: method A: to move the aluminium plate for
38、 about 25 mm; method B: to move the polystyrene panel for about 50 mm. The main test with one impact on five different test specimens shall not result in more than one puncture. If more than one puncture occurs, the drop height shall be reduced until further impact on five different test specimens d
39、oes not result in more than one puncture (increments of drop height see 5.3). The test specimens are examined for possible puncture within 5 min after the impact test by coating the surface of the impact area with a soap solution and applying a pressure difference of 15 kPa (0,15 bar) to the zone of
40、 impact by means of a vacuum or pressure device with the positive pressure at the side subjected to impact. If after 60 s no air bubbles are visible, the test specimen is considered to have no leakage and is not punctured. 9 Expression of results The resistance to impact is expressed as the drop hei
41、ght of the puncturing tool in millimetres, which has not caused leakage of the flexible sheet for roof waterproofing in four out of five test specimens. Additionally the type of the test method (A or B) is to indicate. 10 Test report The test report shall include at least the following information:
42、all details necessary to identify the product tested; reference to this European Standard, i.e. EN 12691 and any deviation from it; information on sampling in accordance with Clause 6; information on the preparation of the test specimens in accordance with Clause 7; information on the procedure in a
43、ccordance with Clause 8 and indicating the method used (A or B); the test results in accordance with Clause 9; date of the test. BS EN 12691:2006BSI389 Chiswick High RoadLondonW4 4ALBSI British Standards InstitutionBSI is the independent national body responsible for preparing British Standards. It
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