1、BSI Standards PublicationBS ISO 11485-3:2014Glass in building CurvedglassPart 3: Requirements for curved temperedand curved laminated safety glassBS ISO 11485-3:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 11485-3:2014.The UK participation in its prepar
2、ation was entrusted to TechnicalCommittee B/520/1, Basic and transformed glass products.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for i
3、ts correctapplication. The British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 81061 9ICS 81.040.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and S
4、trategy Committee on 30 September 2014.Amendments issued since publicationDate Text affectedBS ISO 11485-3:2014 ISO 2014Glass in building Curved glass Part 3: Requirements for curved tempered and curved laminated safety glassVerre dans la construction Verre bomb Partie 3: Exigences pour le verre de
5、scurit bomb tremp et bomb feuilletINTERNATIONAL STANDARDISO11485-3First edition2014-09-15Reference numberISO 11485-3:2014(E)BS ISO 11485-3:2014ISO 11485-3:2014(E)ii ISO 2014 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2014All rights reserved. Unless otherwise specified, no part of this publi
6、cation may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the count
7、ry of the requester.ISO copyright officeCase postale 56 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandBS ISO 11485-3:2014ISO 11485-3:2014(E) ISO 2014 All rights reserved iiiContents PageForeword ivIntroduction v1 Scope . 12
8、Normative references 13 Terms and definitions . 24 Glass products . 24.1 Curved tempered safety glass 24.2 Curved laminated safety glass . 25 Fragmentation test for curved tempered safety glass . 35.1 General . 35.2 Dimensions and number of test specimens . 35.3 Test procedure . 35.4 Assessment of f
9、ragmentation . 55.5 Minimum values from the particle count . 55.6 Selection of the longest particle . 65.7 Maximum length of longest particle . 65.8 Test Report . 66 Other physical characteristics 66.1 Thermal durability . 66.2 Mechanical strength . 67 Marking 78 Pendulum impact performance of safet
10、y glass . 78.1 General . 78.2 Problem specific to curved safety glass . 78.3 Test method . 7Annex A (normative) Pendulum impact test methods . 8Annex B (informative) Example of particle count . 9BS ISO 11485-3:2014ISO 11485-3:2014(E)ForewordISO (the International Organization for Standardization) is
11、 a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represen
12、ted on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop
13、this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC
14、 Directives, Part 2 (see www.iso.org/directives). Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the
15、development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents). Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of
16、 ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 160, Glass
17、 in building, Subcommittee SC 1, Product considerations.ISO 11485 consists of the following parts, under the general title Glass in building Curved glass: Part 1: Terminology and definitions Part 2: Quality requirements Part 3: Requirements for curved tempered and curved laminated safety glassiv ISO
18、 2014 All rights reservedBS ISO 11485-3:2014ISO 11485-3:2014(E)IntroductionCurved tempered safety glass has a breakage behaviour that is different to annealed glass. This behaviour is a direct result of the high surface prestress and the stress profile within the glass.Curved tempered safety glass h
19、as a known behaviour under accident human impact.Curved laminated safety glass has safety properties that are different to annealed glass. This behaviour is a direct result of the assembly of two or more glass panes with one or more interlayers.Curved laminated safety glass has a known behaviour und
20、er accidental human impact. ISO 2014 All rights reserved vBS ISO 11485-3:2014BS ISO 11485-3:2014Glass in building Curved glass Part 3: Requirements for curved tempered and curved laminated safety glass1 ScopeThis part of ISO 11485 defines the conditions to classify a curved glass product as a curved
21、 safety glass.This part of ISO 11485 classifies curved tempered glass and curved laminated glass as safety glasses used in buildings, by performance under impact and by mode of breakage. The classification by drop height corresponds to graded values of energy transmitted by the impact of a person.Th
22、e classification system in this part of ISO 11485 relates to increasing personal safety by the reduction of cutting and piercing injuries to persons, and the containment characteristics of the material.This part of ISO 11485 covers fracture characteristics, including fragmentation test and the physi
23、cal and mechanical characteristics of curved tempered safety glass for use in buildings.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For
24、 undated references, the latest edition of the referenced document (including any amendments) applies.ISO 11479-1, Glass in building Coated glass Part 1: Physical defectsISO 11485-1, Glass in building Curved glass Part 1: Terminology and definitionsISO 11485-2, Glass in building Curved glass Part 2:
25、 Quality requirementsISO 12543-1, Glass in building Laminated glass and laminated safety glass Part 1: Definitions and description of component partsISO 16293-1, Glass in building Basic soda lime silicate glass products Part 1: Definitions and general physical and mechanical propertiesISO 16293-2, G
26、lass in building Basic soda lime silicate glass products Part 2: Float glass1)ISO 16293-5, Glass in building Basic soda lime silicate glass products Part 5: Patterned glass 1)ISO/TS 29584, Glass in building Pendulum impact testing and classification of safety glass for use in buildings 1)EN 572-4, G
27、lass in building Basic soda lime silicate glass products Drawn sheet glass1) To be published.INTERNATIONAL STANDARD ISO 11485-3:2014(E) ISO 2014 All rights reserved 1BS ISO 11485-3:2014ISO 11485-3:2014(E)3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO
28、 11485-1 and the following apply.3.1equivalent flat glassflat glass of the same nature, thickness, and composition, produced on the same equipment and under the same process conditions as the production of curved safety glass, but with a radius equal or near to the infinite for the purpose of pendul
29、um impact testing3.2curved tempered safety glasscurved tempered glass that is distinguished by a fragmentation test as per Clause 5 and by an impact test as per Clause 8, and their requirements3.3curved heat-soaked tempered safety glasscurved heat-soaked tempered glass that is distinguished by a fra
30、gmentation test as per Clause 5 and by an impact test as per Clause 8, and their requirements3.4curved laminated safety glasscurved laminated glass that is distinguished by an impact test as per Clause 8, and its requirements4 Glass products4.1 Curved tempered safety glassCurved tempered safety glas
31、s is made from a monolithic flat glass generally corresponding to one of the following International Standards: soda lime silicate glass according to ISO 16293-1; float glass according to ISO 16293-2; drawn sheet glass according to EN 572-4; patterned glass according to ISO 16293-5; coated glass acc
32、ording to ISO 11479-1.Other nominal thicknesses of glass than those covered in the above standards are possible.4.2 Curved laminated safety glassCurved laminated safety glass is made of at least 2 monolithic curved glasses corresponding to the following International Standard: Curved glass according
33、 to ISO 11485-1NOTE The curved glasses used to make the laminated glass can be annealed, tempered, heat-strengthened, or chemically strengthened.2 ISO 2014 All rights reservedBS ISO 11485-3:2014ISO 11485-3:2014(E)5 Fragmentation test for curved tempered safety glass5.1 GeneralIn the event of breakag
34、e, curved tempered safety glass fractures into numerous small pieces, the edges of which are generally blunt.The fragmentation test determines whether the glass breaks in the manner prescribed for a curved tempered safety glass. This fragmentation test shows the behaviour of breakage of a curved tem
35、pered safety glass without any stress of external action, only by the pre-stress.The fragmentation in service might not always correspond to that determined during the fragmentation test due to the imposition of other stresses, i.e. from fixing or from reprocessing (e.g. laminating).This fragmentati
36、on behaviour ignores any influence of support conditions and is a representation of the effect of the surface pre-stress.These properties are not size dependent.5.2 Dimensions and number of test specimensThe dimensions of the test specimens shall have a length of 360 mm and a chord of 1 100 mm, with
37、out holes, notches, or cut-outs.NOTE With some equipment, the dimension of 360 mm can be difficult to temper. In that case, a sample with a length of 500 mm and a chord of 1 100 mm can be used.Two radiuses will be tested: The minimum possible radius that can be given to a glass of that dimensions, w
38、ith the equipment used; A radius of (5 000 500) mm.NOTE The girth should be calculated for the specific radius, in order to have a chord equal to 1100 mm,Samples should be representative of production. Test specimen shall be manufactured under the conditions that are applicable for the production of
39、 that type/thickness of product.Five specimens shall be tested for each radius.5.3 Test procedureAn adhesive film can be applied on the convex side of the test specimen, on the whole surface.The test specimen will be placed on a flexible plate, e.g. plywood, with the concave side up. This flexible p
40、late will be fixed in its centre on a support piece, to avoid movement of the whole during impact.Support blocks (polystyrene, wood) will be placed on the straight edges to accommodate the curvature of the glass (see Figure 1).Each test specimen shall be impacted, using a pointed steel tool, at a po
41、sition 20 mm in from the longest edge of the test specimen at the mid-point of that edge, until breakage occurs (see Figure 2).For curved tempered glass manufactured by vertical tempering, the impact point shall not be on the tong mark edge.NOTE The fragmentation characteristics of glass are unaffec
42、ted by temperatures between 50 C and +100 C.Examples of steel tools are a hammer of about 75 g mass, a spring loaded centre punch, or other similar appliance with a hardened point. The radius of curvature of the point should be approximately 0,2 mm. ISO 2014 All rights reserved 3BS ISO 11485-3:2014I
43、SO 11485-3:2014(E)KeyC chord = 1 100 mmR radius = 1 000 mm1 support blocks2 plywood flexible plate3 glass sample4 horizontal supportFigure 1 Installation for fragmentation test Example for R = 1000 mmDimensions in millimetres5501 1002012Key1 impact point2 width = 360 mm or 500 mmFigure 2 Position of
44、 impact point4 ISO 2014 All rights reservedBS ISO 11485-3:2014ISO 11485-3:2014(E)5.4 Assessment of fragmentationAn area of radius 80 mm, centred on the impact point, and a border of 25 mm, round the edge of the test specimen (see Figure 3), shall be excluded from the assessment.Dimensions in millime
45、tresKey1 excluded area2 width = 360 mm or 500 mmFigure 3 Area to be excluded from the particle count determination and largest particle measurementThe particle count shall be made in the region of coarsest fracture (the aim being to obtain the minimum value).The particle count shall be made by placi
46、ng a mask of (150 1) mm (150 1) mm on the test piece (see Annex B), on the concave side of the curved glass, in the zone where the biggest fragments are located.Wait 3 min after breakage before starting to count, and count up to 10 min after breakage. The number of crack-free particles within the ma
47、sk shall be counted. A particle is “crack-free” if it does not contain any cracks which run from one edge to another (see Figure 4).Figure 4 Examples of crack-free particles and the assessment regarding the numberIn the particle count, all particles wholly contained within the area of the mask shall
48、 be counted as one particle each and all the particles which are partially within the mask shall be counted as 1/2 particle each (see Annex B).5.5 Minimum values from the particle countIn order to classify a glass as a tempered curved tempered safety glass, the particle count of each test specimen s
49、hall not be less than the values given in Table 1. ISO 2014 All rights reserved 5BS ISO 11485-3:2014ISO 11485-3:2014(E)Table 1 Minimum particle count valuesGlass typeNominal thickness,dmmMinimum particle countAll glass types3 2704 to 12 36015 to 25 2705.6 Selection of the longest particleThe longest particle shall be chosen from the body of the test specimen.It shall not be measured in the excluded area. If the splinter is in both areas, the length of the splinter in
