1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Glass in Building Insulating Glass UnitsPart 4: Methods of test for the physical attributes of edge seal components and insertsBS EN 12794:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1279-4 July 2018 ICS 81
2、.040.20 Supersedes EN 1279-4:2002English Version Glass in Building - Insulating Glass Units - Part 4: Methods of test for the physical attributes of edge seal components and inserts Verre dans la construction - Vitrage isolant prfabriqu scell - Partie 4 : Mthodes dessai des proprits physiques des co
3、mposants et inserts Glas im Bauwesen - Mehrscheiben-Isolierglas - Teil 4: Verfahren zur Prfung der physikalischen Eigenschaften der Komponenten des Randverbundes und der Einbauten This European Standard was approved by CEN on 9 March 2018. CEN members are bound to comply with the CEN/CENELEC Interna
4、l 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 Centre or to any CE
5、N 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 the official versi
6、ons. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, P
7、oland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2018 CEN All rights o
8、f exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1279-4:2018 ENational forewordThis British Standard is the UK implementation of EN 12794:2018. It supersedes BS EN 12794:2002, which is withdrawn.The UK participation in its preparation was entrusted
9、 to Technical Committee B/520, Glass and glazing in building.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. T
10、he British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 89454 1ICS 81.040.20Compliance 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 3
11、1 July 2018.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 12794:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1279-4 July 2018 ICS 81.040.20 Supersedes EN 1279-4:2002English Version Glass in Building - Insulating Glass Units - Part 4: Methods of tes
12、t for the physical attributes of edge seal components and inserts Verre dans la construction - Vitrage isolant prfabriqu scell - Partie 4 : Mthodes dessai des proprits physiques des composants et inserts Glas im Bauwesen - Mehrscheiben-Isolierglas - Teil 4: Verfahren zur Prfung der physikalischen Ei
13、genschaften der Komponenten des Randverbundes und der Einbauten This European Standard was approved by CEN on 9 March 2018. 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 wit
14、hout any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other
15、 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 the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, D
16、enmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEA
17、N COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2018 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1279-4:2018 EBS
18、 EN 12794:2018EN 1279-4:2018 (E) 2 Contents Page European foreword . 5 1 Scope 7 2 Normative references 7 3 Terms and definitions . 7 4 Symbols and abbreviations . 8 4.1 Symbols and units . 8 4.2 Abbreviated terms 9 4.3 Indexes 9 5 Requirements for sealants . 9 5.1 General 9 5.2 Physicochemical char
19、acterization . 10 5.3 Outer sealant strength 11 5.4 Additional requirements . 12 5.5 Characteristics for the substitution of sealants 12 5.5.1 Crossover stress (C) 12 5.5.2 Water vapour transmission rate (WVTR) . 12 5.5.3 Gas permeation rate (GPR) . 12 5.6 Test report for sealant 12 6 Requirements f
20、or desiccants in bulk 15 6.1 General . 15 6.2 Physicochemical characterization of desiccants in bulk . 15 6.2.1 X-ray Fluorescence Spectroscopy (XRF) 15 6.2.2 X-ray Diffraction (XRD) 15 6.2.3 Bulk density . 15 6.2.4 Available Water Adsorption Capacity (AWAC) 15 6.2.5 Correlation between T, available
21、 water adsorption capacity (AWAC) and loss on ignition (LOI) . 15 6.3 Performance requirements 17 6.3.1 Loss on Ignition (LOI at 540 C) . 17 6.3.2 Standard moisture adsorption capacity (Tc) 17 6.3.3 Gas desorption 17 6.4 Additional requirements . 17 6.5 Report for desiccants in bulk . 17 7 Requireme
22、nts for preformed flexible spacer incorporating desiccant 19 7.1 General . 19 7.2 Physicochemical characterization . 19 7.2.1 Identification . 19 7.2.2 Tcand Tovalues 19 7.3 Additional requirements . 20 7.4 Report . 20 8 Requirements for inserts containing polymer materials 20 8.1 General . 20 8.2 W
23、ater content 20 BS EN 12794:2018EN 1279-4:2018 (E) 3 8.3 Volatile content 20 8.4 Fogging 20 8.5 Report . 20 Annex A (normative) Adhesion test for outer sealants and metal edge seals 21 A.1 Outer sealants 21 A.2 Metallic edge seals 25 Annex B (normative) Adhesion on coatings and interlayer adhesion o
24、f coatings . 27 B.1 General 27 B.2 Composition of coatings . 27 B.3 Evaluation 27 B.4 Test report . 29 Annex C (normative) Fogging test 32 C.1 General 32 C.2 Principle of the test 32 C.3 Test conditions 32 C.4 Visual inspection and requirements 32 C.5 Exposure equipment 33 C.6 Test report . 33 Annex
25、 D (normative) Methods of water vapour transmission rate and gas permeation rate determination 37 D.1 Method for determination of water vapour transmission rate (WVTR) 37 D.2 Method for determination of gas permeation rate (GPR) 40 Annex E (normative) Test methods for desiccants in bulk . 43 E.1 Det
26、ermination of loss on ignition LOI, Tiand Tf(at 540 C) 43 E.2 Determination of available water adsorption capacity (AWAC) . 44 E.3 Calculation of the standard moisture adsorption capacity (Tc) 46 E.4 Determination of gas desorption 46 E.5 Bulk density 48 Annex F (normative) Karl Fischer method for d
27、etermination of moisture content of polymeric matrices incorporating desiccant 51 F.1 General 51 F.2 Materials and apparatus 51 F.3 Preparatory work . 51 F.4 Determination of moisture content To, Tiand Tf52 F.5 Determination of standard moisture adsorption capacity Tc53 F.6 Accuracy of the method 53
28、 BS EN 12794:2018EN 1279-4:2018 (E) 4 Annex G (normative) Gravimetric method for determination of moisture content of polymeric matrices incorporating desiccant . 54 G.1 General . 54 G.2 Materials and apparatus 54 G.3 Determination of To, Ti, Tfand Tc54 Annex H (normative) Volatile content test 56 H
29、.1 General . 56 H.2 Principle of the test . 56 H.3 Apparatus 56 H.4 Test samples 56 H.5 Test procedure 56 H.6 Test report 57 Annex I (informative) Example of a sun simulating radiation source . 58 Annex J (informative) Sealant sheet preparation for WVTR and GPR measurements 59 J.1 Preparation of she
30、ets 59 J.2 Method 1 59 J.3 Method 2 59 J.4 Evaluation of sheet 60 Bibliography . 61 BS EN 12794:2018EN 1279-4:2018 (E) 5 European foreword This document (EN 1279-4:2018) has been prepared by Technical Committee CEN/TC 129 “Glass in building”, the secretariat of which is held by NBN. This European St
31、andard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by January 2019 and conflicting national standards shall be withdrawn at the latest by January 2019. Attention is drawn to the possibility that some of the elements of
32、 this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 1279 4:2002. The main changes compared to the previous edition are: a) The standard has been fully technically and editorially revised; b)
33、The scope has been changed; c) Terms and definitions have been transferred to EN 1279-1:2018; d) For sealants physicochemical characterization have been added and requirements were changed; e) For desiccants in bulk physicochemical characterization, test methods and requirements have been added; f)
34、For polymeric matrices incorporating desiccant and inserts requirements have been added; g) Annexes have been renumbered; h) Annex A has been technically revised i) Annex C: Fogging test was transferred from EN 1279-6, Annex C and test temperature was modified; j) Annex D: description of the method
35、to determine GPR has been revised; k) Annexes E, G, J are new; l) Annex F: Karl-Fischer-Determination was transferred from EN 1279-2, Annex C; m) Annex H: Volatile test was transferred from EN 1279-6, Annex G; n) Former Annex B: Edge seal strength comparison was transferred to EN 1279-1:2018, Annex
36、E; o) Former Annex E: Informative tests were deleted. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. BS EN 12794:2018EN 1279-4:2018 (E) 6 EN 1279, Glass in Building - Insulating glass units consists of the following pa
37、rts: Part 1: Generalities, system description, rules for substitution, tolerances and visual quality; Part 2: Long term test method and requirements for moisture penetration; Part 3: Long term test method and requirements for gas leakage rate and for gas concentration tolerances; Part 4: Methods of
38、test for the physical attributes of edge seal components and inserts; Part 5: Product standard; Part 6: Factory production control and periodic tests. These parts are inextricably bound up with each other. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
39、 following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherla
40、nds, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 12794:2018EN 1279-4:2018 (E) 7 1 Scope This document specifies the requirements and describes the test methods for edge seal components and inserts. This includes the
41、identification, the determination of physical attributes and the evaluation of characteristics for use in substitution rules in accordance with EN 1279-1:2018. For the purpose to demonstrate that edge seal components will allow the insulating glass unit to conform to the requirements given in EN 127
42、9-1:2018, Clause 6, EN 1279-2:2018 and EN 1279-3:2018 also apply. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated re
43、ferences, the latest edition of the referenced document (including any amendments) applies. EN 410, Glass in building Determination of luminous and solar characteristics of glazing EN 1279-1:2018, Glass in building Insulating glass units Part 1: Generalities, system description, rules for substituti
44、on, tolerances and visual quality EN 1279-2:2018, Glass in building Insulating glass units Part 2: Long term test method and requirements for moisture penetration EN 1279-3:2018, Glass in building Insulating glass units Part 3: Long term test method and requirements for gas leakage rate and for gas
45、concentration tolerances EN 1279-6:2018, Glass in building Insulating glass units Part 6: Factory production control and periodic tests EN 13022-1, Glass in building - Structural sealant glazing - Part 1: Glass products for structural sealant glazing systems for supported and unsupported monolithic
46、and multiple glazing EN ISO 1183-1, Plastics Methods for determining the density of non-cellular plastics Part 1: Immersion method, liquid pyknometer method and titration method (ISO 1183-1) EN ISO 7500-1, Metallic materials Calibration and verification of static uniaxial testing machines Part 1: Te
47、nsion/compression testing machines - Calibration and verification of the force-measuring system (ISO 7500-1) EN ISO 10563, Buildings and civil engineering works Sealants Determination of change in mass and volume (ISO 10563) EN ISO 11358-1:2014, Plastics Thermogravimetry (TG) of polymers Part 1: Gen
48、eral principles (ISO 11358-1:2014) ISO 5893, Rubber and plastics test equipment Tensile, flexural and compression types (constant rate of traverse) Specification 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 1279-1:2018 apply. ISO and IEC maintain t
49、erminological databases for use in standardization at the following addresses: IEC Electropedia: available at http:/www.electropedia.org/ ISO Online browsing platform: available at http:/www.iso.org/obp BS EN 12794:2018EN 1279-4:2018 (E) 8 4 Symbols and abbreviations 4.1 Symbols and units Symbols and the respective units used in this European Standard are given in Table 1. Table 1 Symbols and units Symbol Characteristic Unit t Time h A Area of test sample mm2D Bulk density g/l PvVolume
