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    EN 1279-1-2018 Glass in Building - Insulating glass units - Part 1 Generalities system description rules for substitution tolerances and visual quality.pdf

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    EN 1279-1-2018 Glass in Building - Insulating glass units - Part 1 Generalities system description rules for substitution tolerances and visual quality.pdf

    1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Glass in building - Insulating glass unitsPart 1: Generalities, system description, rules for substitution, tolerances and visual qualityBS EN 12791:2018National forewordThis British Standard is the UK implementation of

    2、 EN 12791:2018. It supersedes BS EN 12791:2004, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee B/520, Glass and glazing in building.A list of organizations represented on this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

    3、 not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 89456 5ICS 81.040.20Compliance with a British Standard cannot confer immunity from legal

    4、 obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 August 2018.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 12791:2018EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 1279-1July 2018ICS 8

    5、1.040.20 Supersedes EN 12791:2004EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGCEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2018 CEN Ref. No. EN 12791:2018: EAll rights of exploitation in any form and by any means reserved world

    6、wide for CEN national MembersGlass in Building Insulating glass units Part 1: Generalities, system description, rules for substitution, tolerances and visual qualityVerre dans la construction Vitrage isolant Partie 1 : Gnralits, description du systme, rgles de substitution, tolrances et qualit visue

    7、lleGlas im Bauwesen MehrscheibenIsolierglas Teil 1: Allgemeines, Systembeschreibung, Austauschregeln, Toleranzen und visuelle QualittThis 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

    8、 giving this European Standard the status of a national standard without any alteration. Uptodate lists and bibliographical references concerning such national standards may be obtained on application to the CENCENELEC Management Centre or to any CEN member.This European Standard exists in three off

    9、icial 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 versions.CEN members are the national standards bodies of

    10、 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, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia,

    11、 Spain, Sweden, Switzerland, Turkey and United Kingdom.English VersionEN 1279-1:2018 (E)European foreword iii1 Scope . 42 Normative references 43 Terms and definitions . 54 Symbols and abbreviations for edge seal 125 Requirements .125.1 General 125.2 Glass panes/components 135.2.1 General. 135.2.2 B

    12、asic glasses .135.2.3 Special basic glasses.135.2.4 Strengthened glasses .135.2.5 Thermally toughened safety glasses 145.2.6 Laminated glasses 145.2.7 Coated glasses .145.2.8 Surface worked glass .145.2.9 Curved glass 145.3 Cavity fillings . 145.4 Cavity inserts . 155.5 Shapes 156 Requirements .156.

    13、1 Durability of insulating glass units . 156.2 Optical and visual quality of the insulating glass unit .166.3 Dimensional tolerances 166.3.1 General. 166.3.2 Height and width of the unit . 176.3.3 Thickness tolerances along the periphery of the unit 17Annex A (normative) System description of insula

    14、ting glass units .19Annex B (normative) Examples of insulating glass unit systems 20Annex C (informative) Compatibility of components within an insulating glass unit system .25Annex D (normative) Rules to substitute materials and components, possible changes within components and addition in the sys

    15、tem description .27Annex E (informative) Edge seal strength comparison in case of substituting outer sealant .32Annex F (normative) Visual quality of insulating glass units 33Annex G (informative) Other visual aspects of insulating glass units .37Bibliography .39iiContents PageBS EN 12791:2018EN 127

    16、9-1:2018 (E)European forewordThis document (EN 1279-1:2018) 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 endor

    17、sement, 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 this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all

    18、 such patent rights.This document supersedes EN 12791:2004.This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association.The main changes in comparison with the previous edition include:a) Example of system descriptions was added;b) A

    19、nnex B: examples of IGU systems were transferred from part 6;c) Annex C compatibility of components was added;d) Annex D: rules to substitute materials and components were revised and combined in this part;e) Annex F: visual appearance requirements were added.EN 1279, Glass in Building - Insulating

    20、glass units consists of the following parts: 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 conce

    21、ntration tolerances; Part 4: Methods of test for the physical attributes of edge seal components and inserts; Part 5: Product standard; Part 6: Factory production control and periodic tests. This standard is written on the assumption of a 25 year period of use for IGUs.No warranty can be derived the

    22、reof for the variety of different IGU designs, manufacturing procedures and particularly with regard to glazing situations. To ensure the full suitability and durability of new IGU designs or special product variants additional tests of components and/or IGUs may be required.This means, that the des

    23、cribed test procedures and all requirements of this standard, including factory production control, were worked out with the understanding that all values for characteristics performances can be kept under relevant glazing situations in window and facades for this period without significant change.A

    24、ccording to the CENCENELEC 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, Former Yugoslav Republic of Macedonia, France, Germa

    25、ny, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.iiiBS EN 12791:2018EN 1279-1:2018 (E)1 ScopeThis document (all parts) covers the r

    26、equirements for insulating glass units. The main intended uses of the insulating glass units are installations in windows, doors, curtain walling, bonded glazing for doors, windows and curtain walling, roofs and partitions.The achievement of the requirements of this standard indicates that insulatin

    27、g glass units fulfil the needs for intended use and ensures by means of the evaluation of conformity to this standard that, visual, energetic, acoustic, safety parameters do not change significantly over time.In cases where there is no protection against direct ultraviolet radiation or permanent she

    28、ar load on the edge seal, as in bonded glazing for doors, windows and curtain walling systems, it is essential to follow additional European Technical Specifications (see EN 15434, EN 13022-1 and prEN 16759).Insulating glass units that are intended for artistic purposes (e.g. lead glass or fused gla

    29、ss) are excluded from the scope of this standard.Vacuum insulating glass is not covered by this standard (see ISO DIS 19916-1).Glass/plastics composites are under the scope as long as the surface of contact with sealants is a glass component.NOTE For glass products with electrical wiring or connecti

    30、ons for, e.g. alarm or heating purposes, other directives, e.g. Low Voltage Directive, may apply.This European Standard gives definitions for insulating glass units and covers the rules for the system description, the optical and visual quality and the dimensional tolerances thereof and describes th

    31、e substitution rules based on an existing system description.2 Normative referencesThe 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 referenc

    32、es, the latest edition of the referenced document (including any amendments) applies.EN 5721, Glass in building Basic soda lime silicate glass products Part 1: Definitions and general physical and mechanical propertiesEN 5722, Glass in building Basic soda lime silicate glass products Part 2: Float g

    33、lassEN 5723, Glass in building Basic soda lime silicate glass products Part 3: Polished wired glassEN 5724, Glass in building Basic soda lime silicate glass products Part 4: Drawn sheet glassEN 5725, Glass in building Basic soda lime silicate glass products Part 5: Patterned glassEN 5726, Glass in b

    34、uilding Basic soda lime silicate glass products Part 6: Wired patterned glassEN 5728, Glass in building Basic soda lime silicate glass products Part 8: Supplied and final cut sizesEN 12792:2018, Glass in building Insulating glass units Part 2: Long term test method and requirements for moisture pene

    35、trationEN 12793:2018, Glass in building Insulating glass units Part 3: Long term test method and requirements for gas leakage rate and for gas concentration tolerancesEN 12794:2018, Glass in building Insulating glass units Part 4: Methods of test for the physical attributes of edge seal components a

    36、nd insertsEN 12795:2018, Glass in building Insulating glass units -Part 5: Product standards4 BS EN 12791:2018EN 1279-1:2018 (E)EN 12796:2018, Glass in building Insulating glass units Part 6: Factory production control and periodic testsEN ISO 125431, Glass in building Laminated glass and laminated

    37、safety glass Part 1: Definitions and description of component parts (ISO 12543-1)EN 130221, Glass in building Structural sealant glazing Part 1: Glass products for structural sealant glazing systems for supported and unsupported monolithic and multiple glazingISO 114851, Glass in building - Curved g

    38、lass - Part 1: Terminology and definitionsISO 114852, Glass in building - Curved glass - Part 2: Quality requirements3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.ISO and IEC maintain terminological databases for use in standardization at the fol

    39、lowing addresses: IEC Electropedia: available at http:/www.electropedia.org/ ISO Online browsing platform: available at http:/www.iso.org/obp3.1insulating glass unitIGUassembly consisting of at least two panes of glass, separated by one or more spacers, hermetically sealed along the periphery, mecha

    40、nically stable and durable (as specified in 6.1)3.1.1IGU type AIGU, when used for installation without permanent shear load in the sealant and protected against direct UV exposure on edge seal3.1.2IGU type BIGU, when used for installation with at least one edge not completely protected against direc

    41、t UV radiation without permanent shear load in the sealant3.1.3IGU type CIGU when used for installation as bonded glazing for doors, windows and curtain walling with possible permanent shear load on edge sealant with or without direct UV radiation exposureNote 1 to entry: Permanent shear load can be

    42、 avoided by mechanical support to carry the weight.Note 2 to entry: For IGU type B and C additional requirements in accordance with EN 15434 and EN 130221 may apply.3.2bonded glazing for doors, windows and curtain wallingassembly in which glass products are fixed to the structural seal frame by mean

    43、s of a sealant that has been shown to be capable of withstanding the load actions applied to the glass products of the structural seal frameNOTE Bonded glazing for doors, windows and curtain walling (see prEN 16759) was previously called structural sealant glazing (SSG) and is still used in some alr

    44、eady published standards.5BS EN 12791:2018EN 1279-1:2018 (E)3.3systemrange of insulating glass units with a common edge seal design, edge seal materials and edge seal components as described in the system description, the range having a similar edge seal performanceNOTE Examples of edge seal perform

    45、ances are moisture penetration index, gas leakage rate.3.4system descriptiondescription of components and the edge seal of the insulating glass unit in terms relevant to identification, and in terms relevant to edge seal performance, e.g. moisture penetration index, gas loss rateNOTE See Annex A.3.5

    46、permeation geometrygeometry of that part of the edge seal of the insulating glass unit through which the moisture and gas transmission takes placeNOTE For example see Figure 1. Figure 1 Example of permeation geometry3.6cross-over stresssealant tensile strength value at which its stress/strain curve

    47、crosses the line joining a stress of 0,50 MPa and a strain of 50 %NOTE Value is determined following EN 12794:2018, Annex A.3.7cavitygap between the panes of an insulating glass unit3.8dehydrated air or gasair or other gas with a low water vapour partial pressure which, when introduced into the cavi

    48、ty, avoid the risk of condensation in the cavityNOTE In all parts of EN 1279, the word “gas” refers to other gases or mixture of gases rather than air.3.9desiccantcomponent added to the system to absorb or adsorb immersing water vapour in the cavity over time6 BS EN 12791:2018EN 1279-1:2018 (E)3.10e

    49、dge sealassembled edge of an insulating glass unit, designed to ensure that moisture and gas transmissions between the inside and outside of the unit are limited, with a certain mechanical strength, and with a certain physical and chemical stability3.11sealantpolymer material that, after application, has sufficient mechanical and physical properties of cohesion and of adhesion to glass and/or spacer for use in edge seals3.12hot applied outer sealantpolymer m


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