1、BRITISH STANDARD BS EN 14179-1:2005 Glass in building Heat soaked thermally toughened soda lime silicate safety glass Part 1: Definition and description The European Standard EN 14179-1:2005 has the status of a British Standard ICS 81.040.20 BS EN 14179-1:2005 This British Standard was published und
2、er the authority of the Standards Policy and Strategy Committee on 11 July 2005 BSI 11 July 2005 ISBN 0 580 46362 1 National foreword This British Standard is the official English language version of EN 14179-1:2005. The UK participation in its preparation was entrusted by Technical Committee B/520,
3、 Glass and glazing in building, to Subcommittee B/520/1, Glass and glazing in building Basic and transformed glass products, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards w
4、hich implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publi
5、cation does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible internation
6、al/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title p
7、age, pages 2 to 43 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 14179-1 June 2005 ICS 81.040.20 English version Glass i
8、n building - Heat soaked thermally toughened soda lime silicate safety glass - Part 1: Definition and description Verre dans la construction - Verre de silicate sodo-calcique de scurit tremp et trait Heat Soak - Partie 1: Dfinition et description Glas im Bauwesen - Heigelagertes thermisch vorgespann
9、tes Kalknatron-Einscheibensicherheitsglas - Teil 1: Definition und Beschreibung This European Standard was approved by CEN on 19 May 2005. 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 nation
10、al standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any
11、other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland
12、, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NO
13、RMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2005 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14179-1:2005: EEN 14179-1:2005 (E) 2 Contents Page Foreword 4 Introduction5 1 Scope .6 2 Normative references .6 3 Te
14、rms and definitions.6 4 Glass products7 5 Manufacturing processes.7 5.1 General 7 5.2 Toughening process.7 5.3 Heat soak process cycle 8 6 Heat soak process system .9 6.1 General 9 6.2 Oven.9 6.3 Glass support9 6.4 Glass separation .9 6.5 Calibration .11 7 Fracture characteristics .11 8 Dimensions a
15、nd tolerances11 8.1 Nominal thickness and thickness tolerances.11 8.2 Width and length (sizes).12 8.3 Flatness .14 9 Edge work, holes, notches and cut-outs.17 9.1 Warning .17 9.2 Edge working of glass for toughening 17 9.3 Profiled edges .18 9.4 Round holes 18 9.5 Notches and cut-outs .21 9.6 Shaped
16、 panes21 10 Fragmentation test22 10.1 General 22 10.2 Dimensions and number of test specimens .22 10.3 Test procedure 22 10.4 Assessment of fragmentation23 10.5 Minimum values from the particle count.24 10.6 Selection of the longest particle 24 10.7 Maximum length of longest particle 24 11 Other phy
17、sical characteristics .24 11.1 Optical distortion 24 11.2 Anisotropy (iridescence) 24 11.3 Thermal durability.25 11.4 Mechanical strength .25 11.5 Classification of performance under accidental human impact25 12 Marking 25 Annex A (normative) Heat soak process system calibration test .26 A.1 Calibra
18、tion criteria 26EN 14179-1:2005 (E) 3 A.2 Loading of oven and position for glass surface temperature measurement .26 A.3 Procedure 27 A.4 Records .27 A.5 Interpretation of the calibration test28 Annex B (informative) Curved heat soaked thermally toughened soda lime silicate safety glass 37 Annex C (
19、informative) Examples of particle count 38EN 14179-1:2005 (E) 4 Foreword This European Standard (EN 14179-1:2005) has been prepared by Technical Committee CEN/TC 129 “Glass in building”, the secretariat of which is held by IBN/BIN. This European Standard shall be given the status of a national stand
20、ard, either by publication of an identical text or by endorsement, at the latest by December 2005, and conflicting national standards shall be withdrawn at the latest by December 2005. This European Standard has been prepared under a mandate given to CEN by the European Commission and the European F
21、ree Trade Association. This Part of the European Standard does not stand-alone, it is a part of one standard: EN 14179-1: Glass in building Heat soaked thermally toughened soda lime silicate safety glass Part 1: Definition and description; EN 14179-2: Glass in building Heat soaked thermally toughene
22、d soda lime silicate safety glass Part 2: Evaluation of conformity/Product standard. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Es
23、tonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 14179-1:2005 (E) 5 Introduction Heat soaked thermally toughened soda lime sili
24、cate safety glass has a safer breakage behaviour when compared with annealed glass. It also has a known level of residual risk of spontaneous breakage arising from the possible presence of critical nickel sulphide (NiS) inclusions in the thermally toughened soda lime silicate glass. NOTE 1 This case
25、 deals with extremely large quantities of glass. These quantities are dealt with on a statistical basis. Therefore it is impossible to select a quantity of heat soaked thermally toughened soda lime silicate safety glass, for a building, and claim that no break by NiS inclusion can occur. The breakag
26、e of heat soaked thermally toughened soda lime silicate safety glass caused by other influences is excluded.sl1 When used to offer protection under accidental human impact, heat soaked thermally toughened soda lime silicate safety glass also should be classified according to EN 12600 (all parts). NO
27、TE 2 CEN/TC 129/WG 8 is producing standards for the determination of the design strength of glass and is preparing a design method. The European Committee for Standardization (CEN) draws attention to the fact that it is claimed that compliance with this document may involve the use of a patent conce
28、rning Heat Soak Tests. CEN takes no position concerning the evidence, validity and scope of this patent right. The holder of this patent right has assured CEN that he/she is willing to negotiate licences under reasonable and non-discriminatory terms and conditions with applicants throughout the worl
29、d. In this respect, the statement of the holder of this patent right is registered with CEN. Information may be obtained from: SAINT-GOBAIN GLASS FRANCE Les Miroirs 92096 La Dfense Cedex Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rig
30、hts other than those identified above. CEN shall not be held responsible for identifying any or all such patent rights. EN 14179-1:2005 (E) 6 1 Scope This European Standard specifies the heat soak process system together with tolerances flatness, edgework, fragmentation and physical and mechanical c
31、haracteristics of monolithic flat heat soaked thermally toughened soda lime silicate safety glass for use in buildings. Information on curved heat soak thermally toughened soda lime silicate safety glass is given in Annex B, but this product does not form part of this European Standard. Other requir
32、ements, not specified in this European Standard, can apply to heat soaked thermally toughened soda lime silicate safety glass which is incorporated into assemblies, e.g. laminated glass or insulating units, or undergo an additional treatment, e.g. coating. The additional requirements are specified i
33、n the appropriate product standard. Heat soak thermally toughened soda lime silicate safety glass, in this case, does not lose its mechanical or thermal characteristics. 2 Normative references The following referenced documents are indispensable for the application of this European Standard. For dat
34、ed 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, Gl
35、ass in building Basic soda lime silicate glass products Pall 2: Float glass EN 572-4, Glass in building Basic soda lime silicate glass products Part 4: Drawn sheet glass EN 572-5, Glass in building Basic soda lime silicate glass products Part 5: Patterned glass EN 1096-1, Glass in building Coated gl
36、ass Part 1: Definitions and classification 3 Terms and definitions For the purposes of this European Standard, the following terms and definitions apply. 3.1 heat soaked thermally toughened soda lime silicate safety glass glass within which a permanent surface compressive stress has been induced in
37、order to give it greatly increased resistance to mechanical and thermal stress and prescribed fragmentation characteristics and which has a known level of residual risk of spontaneous breakage due to the presence of critical nickel sulphide (NiS) inclusions 3.2 level of residual risk risk of spontan
38、eous breakage of heat soaked thermally toughened soda lime silicate safety glass, on a statistical basis, due to the presence of critical nickel sulphide inclusions, is no more than one breakage per 400 tonnes of heat soaked thermally toughened soda lime silicate safety glass 3.3 flat heat soaked th
39、ermally toughened soda lime silicate safety glass heat soaked thermally toughened soda lime silicate safety glass that has not been deliberately given a specific profile during manufacture EN 14179-1:2005 (E) 7 3.4 heat soaked enamelled thermally toughened soda lime silicate safety glass heat soaked
40、 thermally toughened soda lime silicate safety glass which has a ceramic frit fired into the surface during the toughening process. After toughening the ceramic frit becomes an integral part of the glass NOTE In the UK, this glass is also known as heat soaked opaque thermally toughened soda lime sil
41、icate safety glass. 3.5 horizontal toughening process in which the glass is supported on horizontal rollers 3.6 vertical toughening process in which the glass is suspended by tongs 4 Glass products Heat soaked thermally toughened soda lime silicate safety glass shall be made from a monolithic soda l
42、ime silicate glass product generally corresponding to one of the following standards: soda lime silicate glass according to EN 572-1; float glass according to EN 572-2; drawn sheet glass according to EN 572-4; patterned glass according to EN 572-5; coated glass according to EN 1096-1. 5 Manufacturin
43、g processes 5.1 General Heat soaked thermally toughened soda time silicate safety glass is manufactured as follows: Basic soda lime silicate glass products (see Clause 4) are cut to size, shaped and edgeworked (see Clause 9). The prepared glass panes are then thermally toughened (see 5.2). The therm
44、ally toughened panes are then subjected to the heat soak process cycle. After manufacture the heat soaked thermally toughened soda lime silicate glass shall comply with the fragmentation test (see Clause 10) and mechanical strength requirement (see 11.4). 5.2 Toughening process The cut, shaped and e
45、dgeworked glasses are toughened. The horizontal or vertical toughened glass shall comply with the flatness criteria (see 8.3). The thermally toughened soda lime silicate glass shall have a level of fragmentation that will ensure that after the glass has been through the heat soak process, and subseq
46、uently tested to the fragmentation test (see Clause 10), it shall comply with 10.5. EN 14179-1:2005 (E) 8 5.3 Heat soak process cycle 5.3.1 General The heat soak process cycle consists of a heating phase, a holding phase and a cooling phase (see Figure 1). Key T glass temperature at any point, C t t
47、ime, h 1 first glass to reach 280 C 2 last glass to reach 280 C d ambient temperature a heating phase b holding phase c cooling phase Figure 1 Heat soak process cycle 5.3.2 Heating phase The heating phase commences with all the glasses at ambient temperature and concludes when the surface temperatur
48、e of the last glass reaches 280 C. The time to reach this temperature is defined in the calibration process. This time will be dependent on the size of the oven, the amount of glass to be treated, the separation between glasses and the heating system capacity. NOTE 1 The glass separation and rate of
49、 heating should be controlled to minimise the risk of glass breakage as a result of thermal stress. To facilitate economic heating, the air temperature within the oven may exceed 320 C. However, the glass surface temperature shall not be allowed to exceed 320 C. The period of glass surface temperature in excess of 300 C shall be minimised. NOTE 2 When the temperature of the glass exceeds 300 C, care should be taken to e
