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. 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. 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. This European Standard contains other aspects of importance for trade.
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.
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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
SIST EN 15434:2006+A1:2010
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
EN 15434:2006+A1:2010 (E) 2 Contents Page Foreword . 41Scope. 52Normative references . 53Terms and definitions . 64Sealant. 74.1General . 74.2The compulsory part of the product description . 75Requirements . 85.1General . 85.1.1Identification - performances . 85.1.2Application . 85.2Identification tests . 95.2.1General . 95.2.2Thermogravimetric analysis . 95.2.3Specific gravity . 95.2.4Shore A hardness . 95.2.5Change in volume or shrinkage . 105.2.6Infrared spectrometer analysis . 105.3Intrinsic properties . 105.3.1General . 105.3.2Standard substrates and test pieces . 105.3.3Tensile . 115.3.4Shear at 23 °C . 125.3.5Elastic recovery . 125.3.6Tear strength . 135.3.7Mechanical cyclic load . 145.3.8Displacement under permanent shear load (creep test) . 155.3.9Elastic modulus of the sealant . 185.4Environmental influences . 185.4.1General . 185.4.2Determination of cohesion/adhesion properties after exposure to artificial light through glass and to water . 185.4.3Salt spray . 205.4.4SO2 atmosphere . 205.4.5Façade cleaning products . 215.4.6High temperature . 215.5Water vapour transmission and gas transmission . 21SIST EN 15434:2006+A1:2010
EN 15434:2006+A1:2010 (E) 3 5.6Reaction to fire . 215.7Dangerous substances. 225.8Outer seal of insulating glass unit category differentiation . 226Sealing and bonding . 227Compatibility with adjacent material . 228Evaluation of conformity . 278.1General or scope . 278.2Requirements . 278.2.1Product description . 278.2.2Conformity with the definition of sealant . 278.2.3Determination of the characteristic’s performances . 278.2.4Durability . 288.2.5Dangerous substances. 298.3Evaluation of conformity . 298.3.1General . 298.3.2Initial type testing of the product (see Clause 5) . 298.3.3General . 298.4Factory production control and inspection of samples in accordance with a prescribed test plan (8.3.1.1, 1 a) and 1 b)) . 318.4.1General . 318.4.2Initial inspection of factory and of factory production control (8.3.1.1 1 b)) . 318.4.3Continuous surveillance and assessment of the factory production control (see 8.3.1.1 1 c)) . 329Marking and/or labelling . 339.1General . 339.2Labelling . 339.3Product marking . 339.4Product characteristics . 339.5“Characteristics/performance identification paper” . 33Annex A (normative)
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
EN 15434:2006+A1:2010 (E) 4 Foreword This document (EN 15434:2006+A1:2010) has been prepared by Technical Committee CEN/TC 129 “Glass in building”, the secretariat of which is held by NBN. 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 September 2010, and conflicting national standards shall be withdrawn at the latest by September 2010. Attention is drawn to the possibility that some of the elements of this document may 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 includes Amendment 1, approved by CEN on 2010-01-25. This document supersedes EN 15434:2006. The start and finish of text introduced or altered by amendment is indicated in the text by tags ! ". This European Standard is one of a series of interrelated standard parts dealing with: - glass products for structural sealant glazing systems; - installation of glass products in a structural manner on building façades; - UV-resistant and structural sealant for use in structural sealant glazing The interrelated parts are: EN 13022-1: Glass in building — Structural sealant glazing — Part 1: Glass products for structural sealant glazing systems for supported and unsupported monolithic and multiple glazing EN 13022-2: Glass in building — Structural sealant glazing — Assembly rules EN 15434: 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) According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement 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, Switzerland and United Kingdom. SIST EN 15434:2006+A1:2010
EN 15434:2006+A1:2010 (E) 5 1 Scope !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 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
EN 15434:2006+A1:2010 (E) 6 EN 13022-1:2006, Glass in building — Structural sealant glazing — Part 1: Glass products for structural sealant glazing systems for supported and unsupported monolithic and multiple glazing EN 13022-2:2006, Glass in building — Structural sealant glazing — Part 2: Assembly rules EN 13501-1, Fire classification of construction products and building elements — Part 1: Classification using data from reaction to fire tests EN ISO 527-3, Plastics — Determination of tensile properties — Part 3: Test conditions for films and sheets (ISO 527-3:1995) EN ISO 868, Plastics and ebonite — Determination of indentation hardness by means of a durometer (Shore hardness) (ISO 868:2003) EN ISO 1183-1:2004, Plastics — Methods for determining the density of non-cellular plastics — Part 1: Immersion method, liquid pyknometer method and titration method (ISO 1183-1:2004) EN ISO 3231, Paints and varnishes — Determination of resistance to humid atmospheres containing sulfur dioxide (ISO 3231:1993) EN ISO 4892-2, !Plastics — Methods of exposure to laboratory light sources — Part 2: Xenon-arc lamps (ISO 4892-2:2006)" EN ISO 7389, Building construction — Jointing products — Determination of elastic recovery of sealants (ISO 7389:2002) EN ISO 8339, Building construction — Sealants — Determination of tensile properties (Extension to break) (ISO 8339:2005) !EN ISO 9227, Corrosion tests in artificial atmospheres — Salt spray tests (ISO 9227:2006)" EN ISO 10563, Building construction — Sealants— Determination of change in mass and volume (ISO 10563:2005) EN ISO 11358:1997, Plastics — Thermogravimetry (TG) of polymers — General principles (ISO 11358:1997) ISO 16269-6, Statistical interpretation of data — Part 6: Determination of statistical tolerance intervals
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
EN 15434:2006+A1:2010 (E) 7 3.3 initial type testing determination of the performance of a product (characteristic, durability), on the basis of either actual tests or other procedures (such as conventional, standardised, tabulated or general accepted values, standardised or recognised calculation methods, test reports when made available), in accordance with this European Standard that demonstrates compliance with this European Standard 3.4 test report document that covers the results of tests undertaken on a representative sample of the product from production or on a prototype design of the product 3.5 product description document that details the relevant parameters for defining a product that complies with the standard. It includes specific reference(s) to characteristics that are modified by the production process and by raw materials 3.6 significant change variation in performance beyond the permitted tolerance for the characteristic 3.7 type of rupture
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
EN 15434:2006+A1:2010 (E) 8 3) initial cure information: relevant data (or figure or values) depending on the temperature and the relative humidity, the chemistry of the curing system, number of components, mixing ratio and tolerances, section of the sealant to be applied, the nature of the adhesion surfaces …; 4) cured sealant description: list of identification test results in accordance with 5.2 in order to ensure no significant change in the characteristics, properties and durability of the sealant. The definition of product families shall be consistent with the normative part of the product description. The substitution of raw materials or change in the process shall maintain the conformity with the product description. The substituting material can be added to the product family and also the product description when compliance has been demonstrated. 5 Requirements 5.1 General 5.1.1 Identification - performances Sealants shall be identified by the tests referred to in 5.2. The performances of the characteristics claimed in Table 1 shall be determined. The assessments to which Table 1 refers include the durability of the sealant. 5.1.2 Application The sealant shall be applied in conformity with the manufacturer’s recommendations and of the requirements of Clause 5 of EN 13022-2:2006. Table 1 — The performances of the characteristics to determine if relevant Nr Performance of characteristic: Refer to: 1 Mechanical resistance and stability None 2 Safety in case of fire:
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
SIST EN 15434:2006+A1:2010
EN 15434:2006+A1:2010 (E) 9 5.2 Identification tests 5.2.1 General All tests of 5.2 except 5.2.5 "Change in volume" are carried out on cured products. When no curing time has explicitly been stated by the sealant manufacturer, a curing time of at least 28 days at
(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
EN 15434:2006+A1:2010 (E) 10 Evaluation: each value after complete curing shall be within the minimum and maximum value declared by the sealant manufacturer. 5.2.5 Change in volume or shrinkage The aim of this test is to evaluate the degree of change of volume or shrinkage of the structural sealants to limit the initial stresses in the SSG joints. The test shall be carried out in accordance with EN ISO 10563. Number of test pieces: 3. Evaluation: the average change in volume shall not exceed 10 %. 5.2.6 Infrared spectrometer analysis The infrared spectrum is measured by transmission or by reflection in the range from
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
EN 15434:2006+A1:2010 (E) 11 Dimensions in millimetres
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
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