SIST EN 15434:2006+A1:2010
(Main)Glass in building - Product standard for structural and/or ultra-violet resistant sealant (for use with structural sealant glazing and/or insulating glass units with exposed seals)
Glass in building - Product standard for structural and/or ultra-violet resistant sealant (for use with structural sealant glazing and/or insulating glass units with exposed seals)
This European Standard covers the requirements for and testing of sealants for use in one or more of the following applications:
a) Manufacturing of insulating glass units where ultra-violet resistance and/or mechanical resistance (structural use) of the insulating glass edge seal is required.
b) Manufacturing of factory made structural sealant glazing elements when referred to by the relevant European Standards and/or European Technical Approval Guidelines.
c) Assembling of glass products into or onto supports, where also ultra-violet resistance and/or mechanical resistance (structural use) of the seal is required, under controlled environmental conditions as described in Clause 5 of EN 13022-2: 2006.
NOTE 1 The required level of resistance to ultra-violet exposure will be dependent upon the degree of exposure to ultra-violet radiation.
NOTE 2 Only silicone based sealants are permitted for the applications a, b and c above.
d) Manufacturing of insulating glass units where the outer seal of the insulating glass has no structural function and exposure to ultra-violet radiation is reduced for example either by:
i) Use of glass components that decrease the ultra-violet radiation transmission, e.g. laminated glass with ultra-violet absorbing interlayer(s), screen enamelled printing, etc., or
ii) Use of durable applied opaque surface coverings, e.g. metal components, etc.
NOTE Dependent upon the amount of ultra-violet radiation exposure both organic and silicone based sealants are permitted.
This European Standard covers the evaluation of conformity and the factory production control with respect to the production of sealants in conformity with this standard.
This European Standard describes the role of sealants that are in conformity with this European Standard, with respect to sealing and bonding.
Glas im Bauwesen - Produktnorm für lastübertragende und/oder UV-beständige Dichtstoffe (für geklebte Verglasungen und/oder Isolierverglasungen mit exponierten Dichtungen)
!Diese Europäische Norm behandelt Anforderungen und Prüfung von Dichtstoffen für die Verwendung in einer oder mehreren der nachfolgenden Anwendungen:
a) Herstellung von Isolierverglasungen, wenn eine Beständigkeit gegen UV Strahlung und/oder eine mecha-nische Festigkeit (lastübertragende Anwendung) des Randverbundes des Isolierglases erforderlich ist;
b) industrielle Fertigung von Elementen für geklebte Verglasungen, wenn in den entsprechenden Euro-päischen Normen und/oder ETAGs (Leitlinien für europäische technische Zulassungen) darauf verwiesen wird;
c) Einbau oder Montage von Glasprodukten in oder an Halterungen unter kontrollierten Umgebungs-bedingungen, wenn ebenfalls eine Beständigkeit gegen UV Strahlung und/oder eine mechanische Festig-keit (lastübertragende Anwendung) der Dichtung erforderlich ist, wie in EN 13022 2:2006, Abschnitt 5 beschrieben;
ANMERKUNG 1 Die erforderliche Beständigkeit gegen UV-Strahlung hängt vom Grad der Beanspruchung durch UV Strahlung ab.
ANMERKUNG 2 Es ist ausschließlich die Verwendung von Dichtstoffen auf Silikon-Basis für die o. g. Anwendungen a), b) und c) erlaubt.
d) Herstellung von Isolierverglasungen wenn die äußere Dichtung des Isolierglases keine lastüber¬tragende Funktion hat und die Beanspruchung durch UV Strahlung reduziert wird z. B. durch:
i) die Verwendung von Glaskomponenten, die die Übertragung von UV-Strahlung vermindert, z. B. Verbundglas mit Zwischenschichten, die ultra-violette Strahlung absorbieren, Siebdruck ((screen enamelled printing)) usw., oder
ii) die Verwendung von widerstandsfähigen opaken Oberflächenbeschichtungen, z. B. Metall¬kompo-nenten usw.
ANMERKUNG 3 Abhängig von der Höhe der Beanspruchung durch UV-Strahlung ist die Verwendung sowohl von organischen Dichtstoffen als auch von Dichtstoffen auf Silikon-Basis zulässig.
Verre dans la construction - Norme de produits pour produit de collage et de scellement structurel et/ou résistants aux rayonnements ultraviolets (utilisé pour les vitrages extérieurs collés et/ou pour les vitrages isolants à bords exposés)
!La présente Norme européenne traite des exigences et des essais concernant les produits de scellement et/ou de collage destinés à être utilisés dans l’une ou plusieurs des applications suivantes :
a) la fabrication de vitrages isolants pour lesquels une résistance aux rayons ultraviolets et/ou une résistance mécanique (application structurelle) du produit de scellement du vitrage isolant est requise ;
b) la fabrication d’éléments de vitrage extérieur ayant une fonction structurelle, réalisés en usine lorsque les normes européennes et/ou des guides d’agréments techniques européens pertinents y font référence ;
c) l’assemblage de produits verriers directement dans des ouvrages ou sur ces derniers, lorsqu’une résistance aux rayons ultraviolets et/ou une résistance mécanique (application structurelle) du produit de collage est requise, dans des conditions environnementales contrôlées telles que décrites à l’Article 5 de l’EN 13022-2:2006 ;
NOTE 1 Le niveau requis de résistance à l’exposition aux rayons ultraviolets dépend du degré d’exposition au rayonnement ultraviolet.
NOTE 2 Seuls les produits de collage à base de silicone sont admis pour les applications a, b et c ci-dessus.
d) la fabrication de vitrages isolants lorsque le produit de scellement extérieur du vitrage isolant n’a aucune fonction structurelle et que l’exposition aux rayons ultraviolets est réduite, par exemple par :
i) l’utilisation de composants en verre qui diminuent la transmission du rayonnement ultraviolet, par exemple, le verre feuilleté constitué de films absorbant les rayons ultraviolets, le verre sérigraphié, etc., ou par
ii) l’utilisation de revêtements de surface opaques et durables, par exemple, des composants métalliques, etc.
NOTE 3 Suivant le niveau d’exposition aux rayons ultraviolets, les produits de scellement à base organique ainsi que ceux à base de silicone sont admis.
Steklo v gradbeništvu - Produktni standard za strukturna in/ali UV-odporna tesnila (za uporabo v strukturnih zasteklitvah in/ali v izolacijskih steklih z nezavarovanim robnim tesnjenjem)
Ta evropski standard zajema zahteve za preskušanje tesnil za uporabo pri eni ali več naslednjih uporab: a) Izdelavi izolacijskih steklenih enot, kjer je UV-odpornost in/ali mehanska odpornost (strukturna uporaba) tesnila roba izolacijskega stekla potrebna. b) Izdelavi tovarniško narejenih elementov za tesnila za strukturne zasteklitve, kadar se na njih sklicujejo ustrezni evropski standardi in/ali evropske smernice za tehnična soglasja. c) Sestavi steklenih produktov v oporo, kjer je UV-odpornost in/ali mehanska odpornost (strukturna uporaba) tesnil potrebna, pod nadzorovanimi okoljskimi pogoji, kot je opisano v Klavzuli 5 EN 13022-2:2006 d) Izdelavi enot izolacijskega stekla, kjer zunanjo tesnilo izolacijskega stekla nima strukturnih funkcij in je izpostavljenost UV-sevanju zmanjšana na primer bodisi z: i) uporabo steklenih sestavnih delov, ki zmanjšujejo prenos UV-sevanja, npr. laminatno steklo s plastmi, ki vsrkava UV-žarke, okvir emajliranega tiska itd., bodisi z ii) uporabo vzdržljivih neprosojnih površinskih prekritij, npr. kovinski sestavni deli itd. Ta evropski standard zajema ocenjevanje skladnosti in kontrolo tovarniške proizvodnje glede proizvodnje tesnil v skladu s tem standardom. Ta evropski standard opisuje vlogo tesnil, ki so v skladu s tem evropskim standardom, glede tesnjenja in vezenja. Ta evropski standard ne velja za tesnila za izdelavo enot izolacijskega stekla, kjer je tesnilo popolnima zaščiteno, tj. z okvirjem in pred UV-sevanjem. Ta evropski standard vsebuje druge vidike pomena za trgovanje.
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Steklo v gradbeništvu - Produktni standard za strukturna in/ali UV-odporna tesnila (za uporabo v strukturnih zasteklitvah in/ali v izolacijskih steklih z nezavarovanim robnim tesnjenjem)Glas im Bauwesen - Produktnorm für lastübertragende und/oder UV-beständige Dichtstoffe (für geklebte Verglasungen und/oder Isolierverglasungen mit exponierten Dichtungen)Verre dans la construction - Norme de produits pour produit de collage et de scellement structurel et/ou résistants aux rayonnements ultraviolets (utilisé pour les vitrages extérieurs collés et/ou pour les vitrages isolants à bords exposés)Glass in building - Product standard for structural and/or ultra-violet resistant sealant (for use with structural sealant glazing and/or insulating glass units with exposed seals)81.040.20Steklo v gradbeništvuGlass in buildingICS:Ta slovenski standard je istoveten z:EN 15434:2006+A1:2010SIST EN 15434:2006+A1:2010en,fr,de01-julij-2010SIST EN 15434:2006+A1:2010SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 15434:2006+A1
March 2010 ICS 81.040.20 Supersedes EN 15434:2006English Version
Glass in building - Product standard for structural and/or ultra-violet resistant sealant (for use with structural sealant glazing and/or insulating glass units with exposed seals)
Verre dans la construction - Norme de produits pour produit de collage et de scellement structurel et/ou résistants aux rayonnements ultraviolets (utilisé pour les vitrages extérieurs collés et/ou pour les vitrages isolants à bords exposés)
Glas im Bauwesen - Produktnorm für lastübertragende und/oder UV-beständige Dichtstoffe (für geklebte Verglasungen und/oder Isolierverglasungen mit exponierten Dichtungen) This European Standard was approved by CEN on 3 April 2006 and includes Amendment 1 approved by CEN on 25 January 2010.
CEN members are bound to comply with the 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 Management 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 Management Centre has the same status as 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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15434:2006+A1:2010: ESIST EN 15434:2006+A1:2010
Evaluation of mechanical tests results . 35Annex B (normative)
Shear at 23 °C: Test method . 42Annex C (normative)
Factory production control . 44Annex D (normative)
Outer seal of insulating glass category differentiation . 49Annex E (normative)
Formation of bubbles . 54Annex F (informative)
Sealing, structural bonding and UV resistance: schematic illustrations . 56Annex G (normative)
Initial testing of bonding of sealant to non-glass substrates . 59Annex V (informative)
Provisions for voluntary involvement of third party(ies) . 61Bibliography . 62 SIST EN 15434:2006+A1:2010
b) Manufacturing of factory made structural sealant glazing elements when referred to by the relevant European Standards and/or European Technical Approval Guidelines. c) Assembling of glass products into or onto supports, where also ultra-violet resistance and/or mechanical resistance (structural use) of the seal is required, under controlled environmental conditions as described in Clause 5 of EN 13022-2: 2006. NOTE 1 The required level of resistance to ultra-violet exposure will be dependent upon the degree of exposure to ultra-violet radiation. NOTE 2 Only silicone based sealants are permitted for the applications a, b and c above. d) Manufacturing of insulating glass units where the outer seal of the insulating glass has no structural function and exposure to ultra-violet radiation is reduced for example either by: i) Use of glass components that decrease the ultra-violet radiation transmission, e.g. laminated glass with ultra-violet absorbing interlayer(s), screen enamelled printing, etc., or ii) Use of durable applied opaque surface coverings, e.g. metal components, etc. NOTE 3 Dependent upon the amount of ultra-violet radiation exposure both organic and silicone based sealants are permitted. This European Standard covers the evaluation of conformity and the factory production control with respect to the production of sealants in conformity with this standard. This European Standard describes the role of sealants that are in conformity with this European Standard, with respect to sealing and bonding. This European Standard does not apply to sealants for the manufacture of insulating glass units where the seal is fully protected, i.e. by a frame, from ultra-violet radiation. NOTE 4 Sealants for this application should comply with EN 1279-4. This European Standard contains other aspects of importance for trade." 2 Normative references The following referenced documents 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 572-1, Glass in building — Basic soda lime silicate glass products — Part 1: Definitions and general physical and mechanical properties EN 572-2, Glass in building — Basic soda lime silicate glass products — Part 2: Float glass EN 1279-4:2002, Glass in building — Insulating glass units — Part 4: Methods of test for the physical attributes of edge seals SIST EN 15434:2006+A1:2010
3 Terms and definitions For the purposes of this European Standard, the terms and definitions given in EN 13022-1:2006,
EN 13022-2:2006, EN 1279-4:2002 and the following apply. 3.1 initial cure stage in the curing where sealant has appropriate cohesive strength to resist to different levels of action 3.2 creep factor shear design stress under dynamic load SIST EN 15434:2006+A1:2010
number of tests prescribe "Rupture ≥ 90 % cohesive", i.e. the rupture of the samples need to be located at least 90 % within the sealant and a maximum 10 % at the interface between the sealant and the glass 4 Sealant 4.1 General For conformity purposes, the sealant manufacturer shall describe the product in a product description, which will be part of the factory production control documentation, or of the quality insurance system, whichever is applied. Disclosure of the product description is entirely at the discretion of the sealant manufacturer or his agent. The product description shall contain at least a normative part, and may contain an informative part when the manufacturer foresees further development of the product. The product description shall be prepared under the responsibility of the sealant manufacturer or his agent. 4.2 The compulsory part of the product description The compulsory part of the description consists of three sub parts: 2) component description: name and/or type of the sealant, together if it concerns a mono or a multiple component sealant and in the case of a multiple component sealant, the mixing ratio and the tolerances of the mixing ratio within which the performances of the characteristics and properties does not change significantly; SIST EN 15434:2006+A1:2010
2.1 Reaction to fire 5.6 3 Hygiene, health and the environment::
3.1 Release of dangerous substances 5.7 4 Safety in use:
4.1 Resistance against wind, snow, permanent load and/or imposed loads of the glass unit 5.3 and 5.4 5 Protection against noise (when intended for use in insulating glass seal): 5.3, 5.4, 5.5 and 5.8 6 Energy economy and heat retention (when intended for use in insulating glass seal): 5.3, 5.4, 5.5 and 5.8
(23 ± 2) °C and (50 ± 5) % relative humidity shall be maintained. The identification test performances are independent of the production equipment used, provided that a factory production control in accordance with Annex C is in use. 5.2.2 Thermogravimetric analysis The test shall be carried out in accordance with EN ISO 11358:1997, Temperature scanning method, Procedure A, non-oxidative condition, temperature slope 10 °C/min. After conditioning / curing: (23 ± 2) °C, (50 ± 5) % RH, 28 days. Number of test pieces: 1. Evaluation: curve and the first derivate of the curve; percentage of cumulative losses up to 900 °C; zones of maximum loss through volatilisation; exo- or endothermic conversion zones. 5.2.3 Specific gravity The determination of the specific mass shall be in accordance with EN ISO 1183-1:2004, Method A. Test samples to take from: cured product; non cured product (mono component sealant); components (multiple component sealant). Number of test pieces per test sample: 3 Evaluation: each value, after complete curing shall be within the minimum and maximum value declared by the sealant manufacturer. 5.2.4 Shore A hardness The measurement of the shore A hardness shall be carried out in accordance with EN ISO 868. Test time: 3 s, every sample 5 times. The measurement shall be carried out on three test pieces after full curing of the sealant. Number of test specimen: 3. SIST EN 15434:2006+A1:2010
2,4 µm to 50 µm, preferably by use of a KRS 5 crystal. Test specimen: a tongue shaped amount of cured sealant which shall be conditioned for at least
48 h at (23 ± 2) °C, subsequently subjected to pyrolysis. Evaluation: the measured spectrum high lighting the relevant characteristic wavelengths of absorption. 5.3 Intrinsic properties 5.3.1 General For determining these properties, the tests are to be carried out on test pieces according to 5.3.2. The rigidity modulus and strength Ru,5 are defined in Annex A. The intrinsic properties are independent of the production equipment used, provided that a factory production control in accordance with Annex C is in use. 5.3.2 Standard substrates and test pieces Flat float glass, in accordance with EN 572 Parts 1 and 2, is to be used as a standard glass substrate. Unless otherwise indicated in the various clauses, test pieces are to be used with the dimensions given in Figure 1. Substrate dimension may be different from those given in Figure 1. The dimensions of the sealant joint, however, shall always be 12 mm x 12 mm x 50 mm. SIST EN 15434:2006+A1:2010
Key 1 float glass 2 float glass 3 sealant Figure 1 — Standard test piece Unless otherwise specified in this European Standard the test pieces shall be conditioned for 28 days at (23 ± 2) °C and (50 ± 5) % R.H., or in conformity with the specification of the sealant’s manufacturer. The stresses are given in MPa by the ratio of the breaking force in N and the initial cross section area in mm². 5.3.3 Tensile Tests are carried out in conformity with EN ISO 8339, Conditioning A. After conditioning for 24 ± 4 hours, pulling of the test pieces at the following temperatures: for the class T1: -20 °C, +23 °C, +80 °C; for the class T2: -40 °C, +23 °C, +80 °C (for Nordic countries). Number of test specimen: 10 for each temperature. Evaluation: a) general:
visual examination: rupture shall be at least of 90 % cohesive; b) sealant for structural purposes. SIST EN 15434:2006+A1:2010
Criteria Class T1:
80 °C ∆x mean ≥ 75 % 23 °C Ru5 ≥ 0,5 MPa -20 °C ∆x mean
≥ 75 %
Class T2:
80 °C ∆x mean
≥ 75 % 23 °C Ru5 ≥ 0,5 MPa -40 °C ∆x mean
≥ 75 %
With ∆x mean = X mean °C /
X mean 23°C X mean is defined in A.1. From the stress-at-elongation graph recorded, the following shall be noted: type of failure - whether cohesive or adhesive; stress at elongations of 5 %, 10 %, 15 %, 20 % and 25 %; stress and elongation at rupture, only for test specimens conditioned at + 23 °C. c) sealant for use for non structural insulating glass unit seals: strength and elongation criteria according to EN 1279-4. 5.3.4 Shear at 23 °C Tests are carried out in conformity with Annex B. Direction of force: longitudinal. Number of test specimen: 10. Pulling of the test pieces at the following temperatures: -20 °C, +23 °C, +80 °C. Evaluation: Shear displacement. Criteria identical to 5.3.3. Rupture shall be at least of 90 % cohesive. 5.3.5 Elastic recovery The purpose of the test is to evaluate the elastic recovery behaviour and consequently the relaxation behaviour after long term loading. The test shall be carried out in accordance with EN ISO 7389, Conditioning A with a load to give 25 % elongation (= 125 % of original length). SIST EN 15434:2006+A1:2010
initial stress and elongation; final stress and elongation; elongation after unloading the test pieces. Number of test specimen: 3. Evaluation: -
sealant for structural purposes: the average of the elastic recovery shall be at least 95 %. 5.3.6 Tear strength The aim of this test is to establish the mode of propagation of a cut in the structural sealant. Five test pieces are prepared as specified in 5.3.2. After curing, the test pieces are cut at the ends of the sealant as shown on Figure 2. The samples are tested to destruction in accordance with 5.3.3 and
EN ISO 8339 at the temperature: 23 °C ± 2 °C. Number of test pieces: 5. Evaluation: The average tear breaking strength value shall be: when insert in the structural seal (e.g. mechanical self-weight support, safety devices, other elements as relevant):
at least 0,75 times the average value as measured by 5.3.2 at 23 °C: ∆Xmean > 0,75; without insert in the structural seal: at least 0, 50 times the average value as measured by 5.3.2 at 23 °C: ∆Xmean ≥ 0,50. Rupture shall be at least of 90 % cohesive. Where ∆Xmean = X mean tear / X mean 23°C SIST EN 15434:2006+A1:2010
Key 1 float glass 2 float glass 3 sealant with 5 mm deep incisions at the extremes
Figure 2 — Test specimen for the tear strength test 5.3.7 Mechanical cyclic load The purpose of this test is to evaluate the effect of fatigue stresses on the residual mechanical strength of the sealant bond. Test specimens are subjected to repetitive tensile loads with a cycle time of 8 s (see Figure 3): 100 times from 0,1 σdes to the design stress σdes; 250 times from 0,1 σdes to 0,8 x the design stress σdes; 5 000 times from 0,1 σdes to 0,6 x the design stress σdes; where 6R5,udes=σ (1) After 24 h conditioning at (23 ± 2) °C and (50 ± 5) % relative humidity and after visual inspection of the sealing, the test specimen shall be subjected to tensile test. Number of test specimen: 10. SIST EN 15434:2006+A1:2010
Key t1 duration of the peak load ≥ 2 s t2 rest time ≥ 2 s t3 cycle period time ≤ 8 s Figure 3 — Stress cycle for fatigue test Evaluation: a) sealant for structural purposes: - rigidity modulus: average shall not deviate more than 25 % from the rigidity modulus as measured by 5.3.3 at 23 °C; - strength: Ru,5 shall not be less than 75 % of the mean value of the tensile test according to 5.3.3, at 23 °C (∆Xmean ≥ 0,75). - rupture shall be at least of 90 % cohesive; b) outer seal of insulating glass unit without structural function. - strength and elongation criteria according to EN 1279-4. 5.3.8 Displacement under permanent shear load (creep test) 5.3.8.1 Purpose of the test This test is applicable for sealant intended for structural purposes and under permanent shear load. 5.3.8.2 Creep factor: definition and requirement Factor γc by which the shear design stress under dynamic load Γdes shall be divided to obtain a permanent shear design stress Γ∞ for which no creep is measurable following the criteria of the test described below: cdesγΓ=Γ∞ with
γc
≥ 10 (2) The value of Γ∞ declared by the manufacturer. SIST EN 15434:2006+A1:2010
Key 1 spacer to maintain the extension 2 structural sealant height h to be declared by sealant manufacturer Glass thickness: 8 mm Glass size: 20 mm x 20 mm Figure 4 — Creep test specimens for structural purposes 5.3.8.4 Test procedure Manufacture enough test specimens, three required for the test and a few spares, and store them
28 days at a temperature of (23 ± 2) °C. Install three test specimens in the creep installation and place it in a climatic chamber with a temperature of (23 ± 2) °C. and a relative humidity RH of (50 ± 5) %. SIST EN 15434:2006+A1:2010
Figure 5 — Load arrangement for creep measurement The creep installation subjects simultaneously the test specimens for 91 days to (see Figure 5): tensile loading of: i,ti,tP2400F=
where Pt,i = 0,3x σdes for 91 days; and 6R5;udes=σ (4) Ru,5 is determined for structural purposes in accordance with 5.3.4 at 23 °C; permanent shear loading of: ∞Γ=2400Fs.
(5) With Γ∞, stress given by the manufacturer, taking into account a minimum creep factor of 10. Evaluation: creep evolution at 1 day, 3 days, 7 days, 10 days then each 7 days after loading; deformation after 91 days before unloading; residual deformation 24 h after unloading. The sealant shall be “Displacement under permanent shear load” (creep) graded in accordance with Table 3. The grade C 1 is applicable for the value of the height of the seal declared for the test and for inferior values of this declared height. SIST EN 15434:2006+A1:2010
All not grade C1 sealant
5.3.9 Elastic modulus of the sealant The aim of this test is to determine the calculation of the modulus E0. The test shall be carried out in conformity with EN ISO 527-3 with all the test pieces having a thickness of (2,2 ± 0,2) mm. The manufacturer shall give the modulus type to be introduced in the calculation, either tangent or secant to the origin. In the latter case, the boundaries of the curve (deformation, stress (ε1, σ1),
(ε2, σ2)) between which the calculation modulus. Number of test pieces: 5. Speed of the traction: 5 mm/min. The maximum relative elongation allowed in the calculation shall correspond to the upper boundary used to determine the calculation modulus. The test report shall contain the graphs (deformation, stress) for each sample tested. 5.4 Environmental influences 5.4.1 General The performances as function of the environmental influences are independent of the production equipment used, provided that a factory production control in accordance with Annex C is in use. The test pieces shall be prepared as described in 5.3.2. 5.4.2 Determination of cohesion/adhesion properties after exposure to artificial light through glass and to water Purpose and principle of the test The purpose of this test is to evaluate the sensitivity of the structural sealant to artificial ageing, combining the effect of the ultraviolet radiation and the exposure to water, by measuring the residual mechanical strength of the structural sealant. Test specimens are prepared in which the sealant to be tested adheres to two parallel glass surfaces. After submitting the test specimens to a permanent artificial light at elevated temperature and to water, the test specimens are extended at rupture. SIST EN 15434:2006+A1:2010
(24 ± 2) h, followed by destructive tensile testing. Tensile testing The 20 test pieces are submitted to a destructive tensile testing at a speed of (5,5 ± 0,5) mm/min. Record stress at breaking point elongation at breaking point type of rupture
1)
Ultra-Vitalux ® is the trade-name of a product supplied by OSRAM in Mercurius straat 28, B-1930 Nossegem or in Steinerne Furt 62, D-86167 Augsburg. This information is given for the convenience of users of this European Standard and does not constitute an endorsement by CEN of the product named. Equivalent products may be used if they can be shown to lead to the same results. SIST EN 15434:2006+A1:2010
∆Xmean ≥ 0, 75; secant stiffness (or rigidity modulus) shall be as follows: 0,5 ≤ Kx,c/Kx ≤ 1,10
(with 0 ≤ x % ≤ 12,5 of the deformation/stress curve) See A.4: Stiffness; rupture shall be at least of 90 % cohesive. b) sealant for use for non structural insulating glass unit seals (if relevant):
strength and elongation criteria according to the requirement of EN 1279-4. 5.4.3 Salt spray This test is applicable for sealant intended for structural purposes. Conditioning: - conditioning of the test pieces shall be carried out in accordance with !EN ISO 9227". - atmosphere NSS shall be maintained for 480 h for uncoated glass, glass coated on face 4 (and other substrates), and for 240 h for glass coated on faces 2 and 3. Number of test specimen: 5. Evaluation: sealant for structural purposes: Stress at the breaking point as measured in accordance with 5.3.3 at +23 °C : ∆Xmean ≥ 0,75; rupture shall be at least of 90 % cohesive. 5.4.4 SO2 atmosphere The conditioning of the test pieces shall be carried out in accordance with EN ISO 3231. Corrosion test in artificial atmosphere Atmosphere: 0,20 l of SO2 20 cycles for uncoated glass, glass coated on face 4 and other supports, 10 cycles for glass coated on faces 2 and 3. Number of test pieces: 5. Evaluation: sealant for structural purposes: stress at the breaking point as measured in accordance with 5.3.3 at +23 °C : ∆Xmean ≥ 0,75. rupture shall be at least of 90 % cohesive. SIST EN 15434:2006+A1:2010
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