1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 13050:2011Curtain Walling Watertightness Laboratory test under dynamic condition of air pressure and water sprayIncorporating corrigendum August 2011BSI Standar s Publicati
2、onBS EN 13050:2011 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 13050:2011, incorporating corrigendum August 2011. It supersedes DD ENV13050:2001 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee B/538/6, Curtain
3、walling.A list of organizations represented on this committee 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. BSI 2011 ISBN 978 0 580 76297 0 ICS 91.060.10 Complian
4、ce with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2011.Amendments/corrigenda issued since publicationDate Text affected30 September 2011 Implementation of CEN corr
5、ection notice July 2011: modification of contents and clause 10EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13050 July 2011 ICS 91.060.10 Supersedes ENV 13050:2000English Version Curtain Walling - Watertightness - Laboratory test under dynamic condition of air pressure and water spray Faades
6、 rideaux - Etanchit leau - Essai en laboratoire sous pression dair dynamique et projection deau Vorhangfassaden - Schlagregendichtheit - Laborprfung mit wechselndem Luftdruck und Besprhen mit Wasser This European Standard was approved by CEN on 10 June 2011. CEN members are bound to comply with the
7、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 CEN-CENELEC Management
8、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 CEN-CENELEC Management Centre has the same status as
9、 the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Rom
10、ania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved
11、 worldwide for CEN national Members. Ref. No. EN 13050:2011: EBS EN 13050:2011EN 13050:2011 (E) 2 Contents Page Foreword . 31 Scope . 42 Normative references . 43 Terms and definitions . 44 Principle . 45 Apparatus 56 Test specimen . 67 Specimen preparation 68 Test Procedure 69 Test Results . 710 Te
12、st Report 8Bibliography . 13 BS EN 13050:2011EN 13050:2011 (E) 3 Foreword This document (EN 13050:2011) has been prepared by Technical Committee CEN/TC 33 “Doors, windows, shutters, building hardware and curtain walling“, the secretariat of which is held by AFNOR. This European Standard shall be giv
13、en the status of a national standard, either by publication of an identical text or by endorsement, at the latest by January 2012, and conflicting national standards shall be withdrawn at the latest by January 2012. Attention is drawn to the possibility that some of the elements of this document may
14、 be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes ENV 13050:2000. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to i
15、mplement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden,
16、 Switzerland and the United Kingdom. BS EN 13050:2011EN 13050:2011 (E) 4 1 Scope This European Standard defines an additional test method which may be used when assessing the watertightness of curtain walling, both its fixed and openable parts. It is a supplementary test, not required for classifica
17、tion purposes, and it should be used only when the project specifier has determined its necessity. This European Standard describes how the outside face of a curtain walling specimen should be subjected to a continuous spray of water and a turbulent airflow, with continuous pulses of positive air pr
18、essure on the outside of the test specimen generated from within the chamber. This European Standard applies to any curtain walling product as defined in EN 13830. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references,
19、only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 13119:2007, Curtain walling - Terminology 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 13119:2007 and the f
20、ollowing apply. 3.1 test pressure difference between the static air pressures on the outside and inside faces of the test specimen, which is expressed in Pascals (Pa) 3.2 positive test pressure when the static air pressure is greater on the outside face of the test specimen than on the inside face 3
21、.3 watertightness ability of the curtain walling specimen to resist water leakage 3.4 water leakage penetration of water that continuously or repeatedly wet parts of : 1) the inside face of the specimen 2) any parts of the specimen not intended to be wetted as part of the system of water drainage to
22、 the outside 4 Principle The application of a constant and specified quantity of water in a spray combined with a specified turbulent airflow and continuous regular pulses of positive test pressure, on to the outside face of the specimen, while inspecting for water leakage. BS EN 13050:2011EN 13050:
23、2011 (E) 5 5 Apparatus 5.1 A chamber with an opening into which the test specimen can be fitted. This chamber shall be of sufficient strength and rigidity to withstand the test pressures likely to be imposed during the tests. It shall not deflect under test pressure to any extent which would affect
24、the performance of the test specimen (Figure 2). Adequately representative structural supports shall be provided to which the specimen shall be attached in accordance with the conditions of use in the works (see also Clause 6). 5.2 A means for applying controlled positive test pressures to the speci
25、men arranged such that the air does not impinge directly on the specimen with any significant velocity. 5.3 A means by which rapidly controlled changes of test pressure may be produced within defined limits. 5.4 A means of measuring the applied test pressures, steady or fluctuation, calibrated withi
26、n an accuracy of 5 %. 5.5 An adjustable device for spraying water at a minimum of 2 l/mmin so that a constant and continuous film is applied to the outside surface of the specimen. The water spraying device shall have nozzles spaced on a regular grid and at a uniform distance from the outside surfac
27、e of the specimen (see Figures 3 and 4). The local mains water supply will be an acceptable source providing it is clean enough to allow the spray nozzles to function properly throughout the test. The nozzles shall include the following features: Circular full cone spray; Spray angle minimum 90 to m
28、aximum 120; Working pressure range two to three bars according to the manufacturers specification. 5.6 A means of measuring the total amount of water supplied within an accuracy of 10 %. 5.7 A drain for the sprayed water which will not interfere with the drainage of the specimen frame. 5.8 A mobile
29、wind generator for applying a controlled turbulent airflow to all points on the outside surface of the specimen. The turbulent airflow shall be generated by a variable speed axial fan fixed to a 600 mm diameter rigid duct which directs the airflow around a 90 bend onto the outside surface of the spe
30、cimen (see Figure 5). The bend in the duct shall have an inside radius of 300 mm 5 mm and the straight length of duct after the bend shall be 300 mm 10 mm. The fan shall be capable of generating an airflow with the following features, measured 20 mm from the end of the duct and not more than 300 mm
31、from its central horizontal axis: 3) A minimum velocity of not less than 30 m/s along the central horizontal axis. 4) A minimum velocity of not less than 20 m/s over 75 % of the measurement area. 5) A minimum velocity of not less than 8 m/s at any point within the measurement area. The axis of the a
32、irflow from the duct shall be horizontal and normal to the outside surface of the specimen with the end of the duct 650 mm, 50 mm, from the specimen. The wind generator shall be mounted on a device that provides controlled movement in any direction in a plane BS EN 13050:2011EN 13050:2011 (E) 6 para
33、llel to the glazing or infill panels without regard for any small inclined sections of the specimen. 6 Test specimen The specimen shall be submitted in a fully operable condition, ready for use. It shall be supplied in a suitable manner for fixing onto the test chamber. The test specimen shall not b
34、e less than two typical units wide and shall be sufficient to provide full loading on at least one typical vertical joint or framing member or both. The specimen shall not obtain additional stiffness from the test chamber. The height shall be not less than the full distance between the curtain walls
35、 point of connection to the building structure. For custom designed curtain walls or special elements, the specimen shall be a size which is adequate to demonstrate its compliance with the specified requirements. All parts of the specimen shall be full size, using the same materials, details, method
36、s of construction and fixing as intended for use in the works. Conditions for connection to the structural support shall simulate those in the works as accurately as possible (see also 5.1). This standard does not apply to the perimeter joints between the curtain walling and the test chamber, or to
37、the joints between the curtain walling and the building construction. 7 Specimen preparation No further preparations are necessary other than those already carried out for the preceding air permeability, watertightness and wind resistance tests. 8 Test Procedure Open and close all openable windows 5
38、 times and finally secure them in the closed position. Calculate the maximum test pressure (Pmax) and the minimum test pressure (Pmin) from the actual, or intended maximum, design wind pressure (Pdesign) for the certain walling to comply with: For the calculation generally the highest design wind pr
39、essure (Pdesign)(positive or negative) shall be taken in account. Pmax= 3 Pmin= 0,375 x Pdesign Apply 3 pulses of positive pressure equal to 500 Pa or 10 % greater than the maximum test pressure (Pmax), whichever is greater. The time to increase the pressure up to the maximum value shall be between
40、1 s and 3 s. Each pulse shall be maintained for at least 3 s. Operate the water sprays with 0 Pa test pressure and adjust the total flow to provide 2 l/m2per minute or the higher flow specified by the manufacturer calculated from the area of the specimen under test. After 15 min of spraying without
41、pressure (if the test subsequently to a watertightness test according to EN 12155 the unpressurized spraying time can be reduced to 5 min) apply positive test pressures in continuous regular pulses with a maximum value equal to the maximum test pressure (Pmax) and a minimum value equal to 0,33 x Pma
42、x. The duration of each pressure pulse shall be 5 s 1 s. The wind generator shall be positioned so that the distance between the horizontal axis of the duct and the bottom edge of the test specimen are approximately 0,30 m. The vertical axis of the wind generator shall be not less then 0,30 m and no
43、t more than 0,90 m away from any mullion axis (case 1). If the distance between the axis of the mullions less than 0,6 m each mullion shall be tested separately (case 2). If the distance between the vertical axis of the mullions more than 1,80 m, than as well every mullion shall be tested separately
44、. In this case the vertical axis of the wind generator shall be 0,30 m away from the axis of the tested mullion (case 3) see Figure 1. BS EN 13050:2011EN 13050:2011 (E) 7 Key 1: traverse path 2: centred a) Case 1 1: traverse path b) Case 2 1: traverse path 2:1stStroke 3: 2ndStroke c) Case 3 Figure 1
45、 Position of the wind generator Start the fan and adjust the speed to produce an airflow with a velocity of 20 m/s when measured 20 mm from the end of the duct along the central horizontal axis. Move the wind generator upwards at 2,5 m/min, 0,5 m/min, until the central horizontal axis from the duct
46、is 0,3 m from the top of the specimen (see cases 1 to 3). Return the wind generator as rapidly as possible to the starting position near the bottom of the specimen. Make a second upward pass with the wind generator as before and return it to the starting position. Traverse the wind generator across
47、the specimen so that the central horizontal axis of the duct is midway between the next pair of mullions and make two upward passes with the wind generator as before. Repeat this process until the whole of the specimen has been covered. Constantly inspect the inside surfaces of the specimen for wate
48、r leakage throughout the spraying period. Record the details of any water leaks that are observed and the total time from the start of spraying to the completion of the movement of the wind generator. 9 Test Results If water leakage is observed, record the time since the start of spraying and the ap
49、proximate position of the wind generator when any leak is first observed. Identify the locations of all leaks on an elevational scaled drawing of the specimen. Record the total time for which the specimen was sprayed with water, the maximum and minimum test pressures used for the pressure pulses and the total time for which they were applied. BS EN 13050:2011EN 13050:2011 (E) 8 10 Test Report a) Prepare a report to positively identify the specimen/s and record all parameters checked. b) the report shal
