1、BRITISH STANDARD BS EN 29048:1991 ISO9048:1987 Building construction Jointing products Determination of extrudability of sealants using standardized apparatus This European Standard EN29048:1990 has the status of a BritishStandardBS EN 29048:1991 This BritishStandard was published under the authorit
2、y ofthe Standards Board and comesinto effect on 30August1991 BSI12-1999 The following BSI references relate to the work on this standard: Committee reference ECB/3 Draft for comment86/13677 DC ISBN 0 580 19930 4 Cooperating organizations The European Committee for Standardization, under whose superv
3、ision this European Standard was prepared, comprises the national standards organizations of the following Western European countries. Austria Oesterreichisches Normungsinstitut Belgium Institut belge de normalisation Denmark Dansk Standardiseringsraad Finland Suomen Standardisoimisliito, r.y. Franc
4、e Association franaise de normalisation Germany Deutsches Institut fr Normung e.V. Greece Hellenic Organization for Standardization Iceland Technological Institute of Iceland Ireland National Standards Authority of Ireland Italy Ente Nazionale Italiano di Unificazione Luxembourg Inspection du Travai
5、l et des Mines Netherlands Nederlands Normalisatie-instituut Norway Norges Standardiseringsforbund Portugal Instituto Portugus da Qualidade Spain Asociacin Espaola de Normalizacin y Certificacin Sweden Standardiseringskommissionen i Sverige Switzerland Association suisse de normalisation United King
6、dom BritishStandards Institution Amendments issued since publication Amd. No. Date CommentsBS EN 29048:1991 BSI 12-1999 i Contents Page Cooperating organizations Inside front cover National foreword ii Brief history 2 Text of EN29048 3 National appendix NA (informative) Inside back cover National ap
7、pendix NB (informative) Inside back coverBS EN 29048:1991 ii BSI 12-1999 National foreword This BritishStandard has been prepared under the direction of the Elements and Components (of Diverse Materials) for Buildings Standards Policy Committee. It is the English language version of EN29048:1990 “Bu
8、ilding construction Jointing products Determination of extrudability of sealants using standardized apparatus” published by the European Committee for Standardization (CEN). EN29048:1990 is identical with ISO9048:1987 published by the International Organization for Standardization (ISO). The standar
9、d was developed by Sub-committee ISO/TC59/SC8, Jointing Products, of Technical Committee ISO/TC59, Building Construction. National appendices are designated “informative”. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are respon
10、sible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pagesi andii, theEN title page, pages2 to6, an inside back cover and a back cover. This st
11、andard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN29048 November 1990 UDC 691.587:620.179.5 Key words: Buildings, Joints, Sealingmaterials,
12、 Putty, Tests, Determination, Extrudability English version Building construction Jointing products Determination of extrudability of sealants using standardized apparatus (ISO9048:1987) Construction immobilire Produits pour joints Dtermination de lextrudabilit des mastics au moyen dun appareil norm
13、alis (ISO9048:1987) Hochbau Fugendichtstoffe Bestimmung der Verarbeitbarkeit von Dichtstoffen (ISO9048:1987) This European Standard was accepted by CEN on21May1990 and is identical to the ISO standard as referred to. CEN members are bound to comply with the requirements of the CEN/CENELEC Common Rul
14、es 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 Central Secretariat or to any CEN member. This Eu
15、ropean 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 CEN Central Secretariat has the same status as the official versions. CEN members are the na
16、tional standards organizations of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komi
17、tee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels CEN1990 Copyright reserved to all CEN members Ref.No.EN29048:1990EEN 29048:1990 BSI 12-1999 2 Brief history According the proposal of CEN/CS, the Technical Board decided in accordance with the Common CEN/CENELEC Rules, clause4.2
18、.6, to submit the International Standard ISO9048:1987 “Building construction Jointing products Determination of extrudability of sealants using standardized apparatus” to the Formal Vote. In accordance with the Common CEN/CENELEC Rules, the following countries are bound to implement this standard: A
19、ustria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Statement The text of the International Standard ISO9048, edition1987 was approved by CEN as a European Standard without any
20、modification. Contents Page Brief history 2 1 Scope and field of application 3 2 References 3 3 Definitions 3 4 Principle 3 5 Apparatus 3 6 Conditioning 3 7 Procedure 3 8 Test report 4 Figure 1 Extrusion device 4 Figure 2 Parts of extrusion device 5EN 29048:1990 BSI 12-1999 3 1 Scope and field of ap
21、plication This International Standard specifies a method for the determination of extrudability of one-component or multi-component sealants regardless of the kind of packages in which they are supplied or from which they are applied to the joint in buildings. NOTEA method for the determination of t
22、he extrudability of one-component sealants from the packages in which they are supplied is given in ISO8394. 2 References ISO228-1, Pipe threads where pressure-tight joints are not made on the threads Part1: Designation, dimensions and tolerances. ISO2009, Slotted countersunk head screws (common hea
23、d style) Product grade A. ISO2338, Parallel pins, unhardened. ISO6927, Building construction Jointing products Sealants Vocabulary. 3 Definitions For the purposes of this International Standard, the definitions given in ISO6927 apply. 4 Principle Extrusion of a defined volume of sealant from a stand
24、ardized device under defined conditions by means of compressed air. Reporting of the extrudability as extruded volume per time unit, in the case of multi-component sealants by plotting a diagram. 5 Apparatus 5.1 Extrusion device, for pneumatic operation according to Figure 1 and Figure 2 for a test
25、volume of approximately250 or400ml and with an orifice diameter of2,4,6 or10mm as stipulated in relevant requirement standards or as agreed. 5.2 Air compressor, with valve and pressure gauge to maintain the supply of compressed air at200 2,5kPa and with an appropriate connection to the extrusion dev
26、ice. 5.3 Graduated glass cylinder, of1000ml capacity. 5.4 Stop watch, calibrated in seconds. 6 Conditioning The sealant to be tested and the apparatus shall be conditioned at5 2 C and/or23 2 C and at(50 5)% relative humidity for at least8h. 7 Procedure 7.1 General The test procedure shall be carried
27、 out at23 2 C and at(50 5)% relative humidity. Fit the piston and ring of the extrusion device(5.1) together and insert in the cylinder with the ring towards the orifice. Fill the cylinder with the sealant without producing any bubbles. In the case of multi-component sealant the filling shall be don
28、e immediately after the components have been mixed according to the requirements of the manufacturer. Flush the surface of the sealant before the orifice cap, slide bar and orifice plate are put on the cylinder. Choose the cylinder volume and orifice diameter according to the stipulations of the rel
29、evant requirement standards or as agreed upon between the parties involved. Where a sealant which has been conditioned at more than one of the temperatures stated in clause6 is tested, the same cylinder volume and orifice diameter shall be used. Set the filled extrusion device(5.1) under an air pres
30、sure of200 2,5kPa(5.2) with the slide bar closed and keep it constantly under this pressure during the whole test. Before starting measurement extrusion, extrude2 or3cm of sealant to fill the orifice of the extrusion device. 7.2 Testing of one-component sealants Extrude all of the sealant in the ext
31、rusion device(5.1) in one movement and measure the time required. Calculate the extrusion rate from the chosen test volume and the extrusion time in millilitres per minute. 7.3 Testing of multi-component sealants Place500ml of deionized or distilled water in the graduated glass cylinder(5.3) and rea
32、d the level of water. Then extrude approximately50ml of the sealant from the extrusion device(5.1) into the water and record the time required. Read and record the level of water for its exact volume. The first extrusion shall be performed15min after beginning of the mixing of the components. Repeat
33、 the procedure at least three times, that is, extruding approximately50ml each time and recording the time required and the exact volume. Using the time required for each volume of sealant at suitable intervals of time, develop a volume/time graph so that a curve can be plotted which shows the extru
34、ded volume per minute at any time within the application life of the sealant as specified by the manufacturer.EN 29048:1990 4 BSI 12-1999 8 Test report The test report shall include the following information: a) reference to this International Standard; b) name and type of sealant; c) batch of seala
35、nt and age, if possible; d) conditions of mixing and mixing device in the case of multi-component sealants; e) volume of sealant tested (cylinder volume) and orifice diameter used; f) extrusion rate in millilitres per minute, in the case of one-component sealants for each conditioning temperature ap
36、plied; g) diagram of volume/time curve and average extrusion rate in millilitres per minute, in the case of multi-component sealants for each conditioning temperature applied; h) any deviation from the specified test conditions. Reference No. Quantity Item a Material 1 2 3 4 5 6 7 8 9 10 11 12 13 14
37、 1 1 1 1 1 1 1 1 1 2 3 1 1 1 cylinder piston ring orifice cap slide bar orifice plate, d=2mm orifice plate, d=4mm orifice plate, d=6mm orifice plate, d=10mm countersunk head screw: ISO2009M3 64,8 parallel pin: ISO23386 8 coupling with pipe thread: ISO228-1G3/8 neoprene gasket, outer diameter60mm, ma
38、terial25mm 2mm bottom cap copper-zinc alloy copper-zinc alloy copper-zinc alloy copper-zinc alloy stainless steel stainless steel stainless steel stainless steel stainless steel stainless steel stainless steel copper-zinc alloy neoprene copper-zinc alloy a See Figure 2. Figure 1 Extrusion deviceEN 2
39、9048:1990 BSI 12-1999 5 Orifice plate, 6, 7, 8, 9 Specified tolerances NOTE 1all over except where otherwise stated. NOTE 2Parts10to13 are not illustrated. 3 H7 10 H7 20 H8 20 e8 50 H7 +0,009 0 +0,015 0 +0,033 0 0,04 0,073 +0,025 0 Figure 2 Parts of extrusion device6 blankBSEN 29048:1991 BSI 12-1999
40、 National appendix NA (informative) The United Kingdom participation in the preparation of this European Standard was entrusted by the Elements and Components (of Diverse Materials) for Buildings Standards Policy Committee (ECB/-) to Technical Committee ECB/3 upon which the following bodies were rep
41、resented: Aluminium Window Association Association of Sealant Applicators British Adhesives and Sealants Association Building Employers Confederation Department of the Environment (Building Research Establishment) Department of the Environment (Property Services Agency) Flat Glass Manufacturers Asso
42、ciation Glass and Glazing Federation Institution of Civil Engineers Refined Bitumen Association Ltd. Society of Architectural and Associated Technicians Society of Chemical Industry Water Services Association of England and Wales National appendix NB (informative) The BritishStandards corresponding
43、to some of the International Standards referred to in the text are as follows: International Standard BritishStandard ISO228-1:1982 BS2779:1986 Specification for pipe threads for tubes and fittings where pressure-tight joints are not made on the threads (metric dimensions) (Technically equivalent) I
44、SO2009:1983 BS4183:1967 Specification for machine screws and machine screw nuts. Metric series (Technically equivalent) ISO6927:1981 BS EN26927:1991 Building construction Jointing products Sealants Vocabulary (Identical)BS EN 29048:1991 ISO9048:1987 BSI 389 Chiswick High Road London W4 4AL BSIBritis
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