1、BRITISH STANDARD Glass in building - Chemically strengthened soda lime silicate glass - Part 1: Definition and description The European Standard EN 12337-12000 has the status of a British Standard ICs 81.040.20 IS EN 2337-1 :2000 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITED BY COPYBIGHT LAW
2、STD.BSI BS EN 12337-L-ENGL 2000 Lb2LibbS 08b8201 759 BS EN 12337-1:2000 This British Standard, having been prepared under the direction of the Sedor Committee for Building and Civil Engineering, was published under the authority of the Standards Committee and comes into effect on 16 August 2000 Q BS
3、I 08-2000 ISBN O 680 36170 5 National foreword This British Standard is the official Engiish ianguage version of EN 12337-1:2000. The UK participation in its preparation was entrusted by Technical Committee M20, Glass and glazing in building, to Subcommittee B/520/1, Basic and transformed glass prod
4、ucts, which has the responsibility to: - aid enquirem to understand the te% - present to the responsible European committee any enquiries on the - monitor related internationai and European developments and promulgate interpretation, or proposals for change, and keep the UK interests informed; them
5、in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section en
6、titled “Internatiod Standards Correspondence Index“, or by using the “Find“ facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British standards are responsible for their correct application. Complia
7、nce with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 19 and a back cover. The BSI copyright notice displayed in this document indicates when the document was
8、 last issued Amendments issued since publication Amd.No. Date I comments EN 12337=1 EUROPEAN STANDARD NORME EUROPEENNE EUROPISCHE NORM June 2000 ICs 81.040.20 English version Glass in building - Chemically strengthened soda lime silicate glass - Part 1: Definition and description Verre dans la const
9、ruction -Verre de silicate sodocalcique renforc chimiquement - Partie 1 : Dfinition et description Glas im Bauwesen - Chemisch vorgespanntes Kalknatronglas - Teil 1 : Definition und Beschreibung This European Standard was approved by CEN on 6 May 1999. CEN members are bound to comply with the CENICE
10、NELEC 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 sich national standards may be obtained on application to the Central Secretariat or to any
11、 CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by traislation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as he official versions. CEN
12、 members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITEE FOR STANDARDIZATION COMIT EUROPEEN DE NORMAL
13、ISATION EUROPISCHES KOMITEE FUR NORMUNG Central Secretariat: rue de Stassart, 36 6-1050 Brussels Q 2000 CEN All rights of exploitation in any fom and by any means reserved worldwide for CEN national Members. Ref. No. EN 12337-1:2000 E Page 2 EN 12337-1 12000 Contents Foreword Introduction I Scope 2
14、Normative references 3 Definitions 4 Glass products 5 Frac tu re characteristics 6 Dimensions and tolerances 6.1 Thickness 6.2 Width and length (sizes) 6.3 Flatness 7 Edge work, holes, notches and cut-outs 7.1 Warning 7.2 7.3 Profiled edges 7.4 Round holes 7.5 Notches and cut-outs 7.6 Shaped panes E
15、dge working of glass for chemical strengthening a Mechanical strength 9 Other physical characteristics 9.1 Optical distortion 9.2 Thermal durability IO Marking Annex A (normative) Determination of U value Annex B (informative) Curved or profiled chemically strengthened soda lime silicate glass 3 4 4
16、 4 5 5 5 5 5 6 8 11 11 11 12 12 16 16 16 17 17 17 17 18 19 OBSI 08-2000 - STD-BSI BS EN 12337-1-ENGL 2000 m Lb24bb7 OBbB204 4bB m Page 3 EN 12337-1 :2000 Foreword This European Standard has been prepared by Technical Committee CENTTC 129, Glass in building, the Secretariat of which is held by IBN. T
17、his 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 December 2000, and conflicting national standards shall be withdrawn at the latest by December 2000. CENTTC129NVG2 prepared a working draft. Accordin
18、g to the CENKENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Sp
19、ain, Sweden, Switzerland and the United Kingdom. OBSI 08-2000 Page 4 EN 12337-1 12000 Introduction Chemically strengthened soda lime silicate glass has a higher resistance to thermal stress and an enhanced mechanical strength when compared to annealed glass. NOTE I : CENTTCI 29MIG8 is producing stan
20、dards for the determination of the design strength of glass and is preparing a design method. NOTE 2: CENTTC129NVG2 is preparing a standard for production control and evaluation of conformity. I Scope This European Standard specifies tolerances, flatness, edgework, fragmentation and physical and mec
21、hanical characteristics of flat chemically strengthened soda lime silicate glass for use in buildings. Information on curved or profiled chemically strengthened soda lime silicate glass is given in annex BI but this product does not form part of this standard. Chemically strengthened soda lime silic
22、ate glass, defined hereafter, can be incorporated into assemblies, e.g. laminated glass or insulating units, or undergo an additional treatment, e.g. coating, and will therefore also comply with the requirements of the appropriate finished product standard. 2 Normative references This European Stand
23、ard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to be revisions of any of these publications apply to
24、this European Standard only when incorporated in it by amendment or revision. For undated references, the latest edition of the publication referred to applies. EN 572-1 EN 572-2 EN 572-4 EN 572-5 EN 673 EN 1288-3 Glass in building - Basic soda lime silicate glass products - Part 1: Definitions and
25、general physical and mechanical properties. Glass in building - Basic soda lime silicate glass products - Part 2: Float glass. Glass in building - Basic soda lime silicate glass products - Part 4: Drawn sheet glass. Glass in building - Basic soda lime silicate glass products - Part 5: Patterned glas
26、s. Glass in building - Determination of thermal transmittance (U value) - Calculation method. Glass in building - Determination of bending strength of glass - Part 3: Test with specimen supported at two points (four point bending). OBSI 08-2000 Page 5 EN 12337-1 12000 3 Definitions For the purposes
27、of this European Standard the following definitions apply. 3.1 glass made by subjecting a soda-lime silicate glass to an ion exchange process in order to give it increased resistance to mechanical and thermal stress. The small diameter ions in the glass surface and edges are replaced with larger dia
28、meter ones, which results in the glass surface and edges being placed into compression chemically strengthened soda lime silicate glass: 3.2 a nominally flat piece of glass which has been strengthened. No specific profile results from the manufacturing process flat chemically strengthened soda lime
29、silicate glass: 4 Glass products Chemically strengthened soda lime silicate glass products are made from a monolithic glass corresponding to one of the following standards: EN 572-1 for definitions and general physical and mechanical properties; EN 572-2 for float glass; EN 5724 for drawn sheet glas
30、s; EN 572-5 for patterned glass. Other soda lime silicate glass products conforming to the chemical composition given in EN 572-1 may also be used to manufacture chemically strengthened soda lime silicate glass. 5 Fracture characteristics When chemically strengthened soda lime silicate glass is frac
31、tured, it breaks like annealed glass. 6 Dimensions and tolerances 6.1 Thickness The nominal thicknesses and thickness tolerances are those given in the relevant product standard (see clause 4), which are reproduced in Table 1. There are a number of specific thicknesses, not included in EN 572-1, EN
32、572-2, EN 572-4 and EN 572-5 which are used for chemical strengthening and some of these are also included in Table I. Other thicknesses can be available and the manufacturer should be consulted about the tolerances. The thickness of a pane shall be determined as for the basic product. The measureme
33、nt shall be taken at the centres of the 4 sides. OBSI 08-2000 STD-BSI BS EN 12337-1-ENGL 2000 W 1b2LibbS OBb8207 Nominal Page 6 EN 12337-1 2000 Tolerances for glass type Table 1 : Nominal thicknesses and thickness tolerances thicknessd I Drawnsheet I Patterned I I not manufactured I not manufactured
34、 113 116 2 3 4 5 6 8 10 12 Il Il Il Il I0,2 I0,2 I0,2 10,3 10,3 10,4 I0,5 11 Il 11 Il II Il I0,5 10,5 I0,5 i0,5 10,8 il ,o Float *Oll IO, 1 IO, 1 10,2 i0,2 I0,2 I0,2 I0,2 10,3 I0,3 10,3 6.2 Width and length (sizes) 6.2.1 General When chemically strengthened soda lime silicate glass dimensions are qu
35、oted 177 m res for rectangular panes the first dimension shall be the width, BI and the second dimension the length, H, as shown in Figure 1. It shall be made clear which dimension is the width, B, and which is the length, Hl when related to its installed position. B Figure 1: Examples of width, B,
36、and length, H, relative to the pane shape NOTE: For chemically strengthened soda lime silicate glass manufactured from patterned glass, the direction of the pattern should be specified relative to one of the dimensions. OBSI 08-2000 Page 7 EN 12337-1 12000 Nominal dimension of side, B or H I2 O00 6.
37、2.2 Maximum and minimum sizes Tolerance, t in this case the properties of the chemically strengthened soda lime silicate glass will alter. In particular the freshly cut edge will be no stronger than annealed glass. The manufacturer should be consulted regarding the intended use. 7.2 Edge working of
38、glass for chemical strengthening Every glass which is to be chemically strengthened has to be edge worked prior to chemical strengthening. The simplest type of edge working is the arrissed edge see Figure 6 a). Other common types are shown in Figures 6 b) to 6 d). For specialist edge work, such as “
39、water jet cutting“, the manufacturers should be consulted. Figure 5 a): Arrissed edge (with blank spots) Figure 5 b): Ground edge (with blank spots) OBSI 08-2000 STD.BS1 BS EN 12337-1-ENGL 2000 1b24bb7 08b8213 470 Page 12 EN 12337-1 :2000 Figure 5 c): Smooth ground edge (no blank spots) Figure 5 d):
40、 Polished edge 7.3 Profiled edges Various other edge profiles can be manufactured with different types of edgework. 7.4 Round holes 7.4.1 General This standard considers only round holes in glass that is not less than 4 mm nominal thickness. The manufacturers should be consulted about edge working o
41、f holes. 7.4.2 Diameter of holes The diameter of holes, 0, shall not, in general, be less than the nominal thickness of the glass. For smaller holes, the manufacturers should be consulted. 7.4.3 Limitations on position of holes In general, the limitations on hole positions relative to the edges of t
42、he glass pane, the comers of the glass pane and to each other depends on: - the nominal glass thickness (d); - the dimensions of the pane (B, H); - the hole diameter (0); - the shape of the pane; - the number of holes. OBSI 08-2000 STD-BSI BS EN 12337-1-ENGL 2OO W lb2Libb9 Ob2lLi 307 W Page 13 EN 12
43、337-1 12000 The recommendations given below are those which are normally available and are limited to panes with a maximum of 4 holes. I) The distance, a, of the edge of a hole to the glass edge should be not less than 2d. a22d Figure 6: Relationship between hole and edge of pane 2) The distance, b,
44、 between the edges of two holes should be not less than 2d. b22d Figure 7: Relationship between two holes OBSI 08-2000 STDiBSI BS EN 12337-1-ENGL 2000 m Lb24bb9 0868215 243 m Nominal hole diameter, 0 410220 20 c 0 I 100 100 c 0 Page 14 EN 12337-1 12000 Tolerances +I ,o B,O consult the manufacturer 3
45、) The distance, c, of the edge of a hole to the corner of the glass should be not less than 6d. c26d Figure 8: Relationship between hole and corner of pane 7.4.4 Tolerances on hole diameters The tolerances on hole diameters are given in Table 4. Table 4: Tolerances on hole diameters Dimensions in mi
46、llimetres 7.4.5 Tolerances on position of holes The tolerances on positions of holes are the same as the tolerances on the width, B, and the length, H (see Table 2). The positions of holes are measured in two directions at right angles (x- and y- axes) from a datum point to the centre of the holes.
47、The datum point is generally chosen as a real or virtual corner of the pane (see Figure 9 for examples). OBSI 08-2000 Page 15 EN 12337-1 :2000 X Figure 9: Examples of the positioning of holes relative to the datum point The position of a hole (X, Y) is (x f t, y k f), where x and y are the required
48、dimensions and f is the tolerance from Table 2. NOTE: The manufacturers should be consulted if tighter tolerances on hole positions are required. OBSI 08-2000 STD=BSI-BS EN 12337-1-ENGL 2000 = lib2rlbb9 08b217 Olb Type of base glass Page 16 EN 12337-1 12000 Generally used values 7.5 Notches and cut-
49、outs Float drawn sheet Many configurations of notches and cut-outs can be supplied. 150 N/mm2 Figure IO: Examples of notches and cutlouts Patterned The manufacturer should be consulted about edge working of notches and cut-outs. 100 N/mm2 7.6 Shaped panes Many non-rectangular shapes can be manufactured and manufacturers should be consulted. 8 Mechanical strength The value of mechanical strength can only be given as a statistical value associated with a particular probability of breakage and with a particular type of loading. The mechanical st
