1、DEUTSCHE NORM November 2000 Glass in building I Chemically strengthened soda lime silicate glass - Part 1 : Definition and description Enalish version of DIN EN 12337-1 IEN 12337-1 ICs 81.040.20 Glas im Bauwesen - Chemisch vorgespanntes Kalknatronglas - Teil 1 : Definition und Beschreibung European
2、Standard EN 12337-1 : 2000 has the status of a DIN Standard. A comma is used as the decimal marker. National foreword This standard has been prepared by CEN/TC 129 Glass in building (Secretariat: Belgium), WG 2 Tough- ened, heat strengthened and enamelled glass. The responsible German body involved
3、in its preparation was the Normenausschuss Bauwesen (Building and Civil Engineering Standards Committee), Technical Committee 09.29.00 Flachglas-Produkte. National Annex NA Other relevant standards DIN EN 572-1 Basic soda lime silicate glass products for use in building - Definitions and general phy
4、si- cal and mechanical properties DIN EN 572-2 Basic soda lime silicate glass products for use in building - Float glass DIN EN 572-4 Basic soda lime silicate glass products for use in building - Drawn sheet glass DIN EN 572-5 Basic soda lime silicate glass products for use in building - Patterned g
5、lass DIN EN 673 Glass in building - Determination of thermal transmittance (U value) -Calculation method DIN EN 1288-3 Glass in building - Determination of the bending strength of glass - Part 3: Test with speci- men supported at two points (four point bending) EN comprises 18 pages. No pari of this
6、 standard may be reproduced without the prior permission of Ref. No. DIN EN 12337-1 : 2000-1 Y Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany, s the exclusive right of sale for German Standards (DIN-Normen). English price group O7 Sales No. 1107 04.01 EUROPEAN
7、STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12337-1 June 2000 ICs 81.040.20 English version Glass in building Part 1 : Definition and description Chemically strengthened soda lime silicate glass Verre dans la construction -Verre de silicate sodo-calcique renforc chimiquement - Partie 1 : Dfinition e
8、t description Glas im Bauwesen - Chemisch vorgespanntes Kalknatronglas - Teil 1 : Definition und Beschreibung This European Standard was approved by CEN on 1999-05-06. CEN members are bound to comply with the CENKENELEC Internal Regulations which stipulate the conditions for giving this European Sta
9、ndard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national stand- ards may be obtained on application to the Central Secretariat or to any CEN member. The European Standards exist in three official versions (English, Frenc
10、h, 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 Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, the Czech Republic,
11、Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, the Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, and the United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de
12、Stassart 36, B-1050 Brussels O 2000. CEN - All rights of exploitation in any form and by any means reserved worldwide for CEN national members. Ref. No. EN 12337-1 : 2000 E Page 2 EN 12337-1 : 2000 Contents Foreword Introduction 1 2 3 4 5 6 7 8 9 10 Scope Normative references Definitions Glass produ
13、cts Fracture characteristics Dimensions and tolerances 6.1 Thickness 6.2 Width and length (sizes) 6.3 Flatness 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 Edge working of glass for chemical strengthening Mechanic
14、al strength Other physical characteristics 9.1 Optical distortion 9.2 Thermal durability Marking Annex A (normative) Determination of U value Annex B (informative) Curved or profiled chemically strengthened soda lime silicate glass 3 4 4 4 5 5 6 6 6 7 8 11 11 11 12 12 16 16 16 17 17 17 17 18 18 Page
15、 3 EN 12337-1 : 2000 Foreword This European Standard has been prepared by Technical Committee CEN/TC 129 “Glass in building“, the secretariat of which is held by IBN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement
16、, at the latest by December 2000, and conflicting national standards shall be withdrawn at the latest by December 2000. CENTTC129NVG2 prepared a working draft. According to the CENKENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement thi
17、s European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Page 4 EN 12337-1 : 2000 Introduction Chemically strengthened soda lime silicate gl
18、ass has a higher resistance to thermal stress and an enhanced mechanical strength when compared to annealed glass. NOTE 1 : CENTC129NVG8 is producing standards for the determination of the design strength of glass and is preparing a design method. NOTE 2: CENTC129MIG2 is preparing a standard for pro
19、duction control and evaluation of conformity. 1 Scope This European Standard specifies tolerances, flatness, edgework, fragmentation and physical and mechanical characteristics of flat chemically strengthened soda lime silicate glass for use in buildings. Information on curved or profiled chemically
20、 strengthened soda lime silicate glass is given in annex B, but this product does not form part of this standard. Chemically strengthened soda lime silicate glass, defined hereafter, can be incorporated into assemblies, e.g. laminated glass or insulating units, or undergo an additional treatment, e.
21、g. coating, and will therefore also comply with the requirements of the appropriate finished product standard. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places
22、in the text and the publications are listed hereafter. For dated references, subsequent amendments to be revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references, the latest edition of the publication referre
23、d to applies. EN 572-1 EN 572-2 EN 572-4 Glass in building - Basic soda lime silicate glass products - Part 1: Definitions and 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 gla
24、ss products - Part 4: Drawn sheet glass Page 5 EN 12337-1 : 2000 EN 572-5 EN 673 EN 1288-3 Glass in building - Basic soda lime silicate glass products - Pari 5: Patterned glass Glass in building - Determination of thermal transmittance (U value) - Calculation Method Glass in building - Determination
25、 of bending strength of glass - Part 3: Test with specimen supported at two points (four point bending) 3 Definitions For the purposes 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 in
26、creased resistance to mechanical and thermal stress. The small diameter ions in the glass surface and edges are replaced with larger diameter ones, which results in the glass surface and edges being placed into compression. chemically strengthened soda lime silicate glass: 3.2 flat chemically streng
27、thened soda lime silicate glass: A nominally flat piece of glass which has been strengthened. No specific profile results from the manufacturing process. 4 Glass products Chemically strengthened soda lime silicate glass products are made from a monolithic glass corresponding to one of the following
28、standards:- EN 572-1 for definitions and general physical and mechanical properties. EN 572-2 for float glass EN 572-4 for drawn sheet glass 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 c
29、hemically strengthened soda lime silicate glass. Page 6 EN 12337-1 : 2000 Nominal thickness d 5 Fracture characteristics Tolerances for glass type Drawn sheet Patterned Float When chemically strengthened soda lime silicate glass is fractured it breaks like annealed glass. 6 Dimensions and tolerances
30、 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 572-2, EN 572-4 and EN 572-5 which are used for chemical strength
31、ening and some of these are also included in table 1. 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. measurement shall be taken at the centres of the 4 sides. The Table 1 : Nomina
32、l thicknesses and thickness tolerances Dimensions in millimetres 1 13 1,6 2 3 4 5 6 10 12 a not manufactured II II II II f 0,2 f 0,2 f 0,2 k 0,3 t 0,3 in this case the properties of the chemically strengthened soda lime silicate glass will alter. In particular the freshly cut edge will be no stronge
33、r than annealed glass. The manufacturer should be consulted regarding the intended use. 7.2 Edge working of 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 edg
34、e (see figure 6 a). Other common types are shown in figures 6 b) to 6 d). For specialist edge work, such as water jet cutting, the manufacturers should be consulted. Figure 5 a): Arrissed edge (with blank spots) Page 12 EN 12337-1 : 2000 Figure 5 b): Ground edge (with blank spots) Figure 5 c): Smoot
35、h ground edge (no blank spots) Figure 5 d): 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 manufacture
36、rs should be consulted about edge working of holes. Page 13 EN 12337-1 : 2000 7.4.2 Diameter of holes The diameter of holes, 0, st ,all 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
37、In general, the limitations on hole positions relative to the edges of the glass pane, the comers of the glass pane and to each other depends on: -the nominal glass thickness (a) - the dimensions of the pane (4 H) -the hole diameter (0) -the shape of the pane -the number of holes The recommendations
38、 given below are those which are normally available and are limited to panes with a maximum of 4 holes. 1) 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 Page 14 EN 12337-1 : 2000 2) The distance, 6, betwe
39、en the edges of two holes should be not less than 2d I b 2d Figure 7: Relationship between two holes 3) The distance, c, of the edge of a hole to the corner of the glass should be not less than 6d c2 6d Figure 8: Relationship between hole and corner of pane 7.4.4 Tolerances on hole diameters The tol
40、erances on hole diameters are given in table 4. Page 15 EN 12337-1 : 2000 Nominal hole diameter, 0 450220 Table 4: Tolerances on hole diameters Tolerances -t l,o 200I100 100 0 It 2,o consult the manufacturer 7.4.5 Tolerances on position of holes The tolerances on positions of holes are the same as t
41、he tolerances on the width, B, and the length, /-/(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. The datum point is generally chosen as a real or virtual corner of the pane (see figure 9 for examples
42、). Figure 9: Examples of the positioning of holes relative to the datum point The position of a hole (X, r) is (x+ t, y& i), where xand yare the required dimensions and tis the tolerance from table 2. Page 16 EN 12337-1 : 2000 NOTE: The manufacturers should be consulted if tighter tolerances on hole
43、 positions are required. 7.5 Notches and cut-outs Many configurations of notches and cut-outs can be supplied. Figure 10: Examples of notches and cut-outs The manufacturer should be consulted about edge working of notches and cut-outs. 7.6 Shaped panes Many non-rectangular shapes can be manufactured
44、 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 strength values apply to quasi-static loading over a shor
45、t time, e.g. wind loading, and relate to a 5 % probability of breakage at the lower limit of the 95 Yo confidence interval. The values for different types of glass are listed in table 5. Page 17 EN 12337-1 : 2000 Type of base glass Float drawn sheet Patterned Table 5: Generally used values for the m
46、echanical strength of chemically strengthened soda lime silicate glass Generally used values 150 N/mm2 100 N/mm2 When at least 10 specimens of chemically strengthened soda lime silicate glass are tested according to EN 1288-3, the 5% breakage probability, statistically evaluated at the lower limit o
47、f the 95% confidence interval, shall not be less than the value in table 5. 9 Other physical characteristics 9.1 Optical distortion The chemical strengthening process does not cause any increase in optical distortion over that present in the glass product from which it is manufactured. 9.2 Thermal d
48、urability The stress characteristics of chemically strengthened soda lime silicate glass are unchanged for continuous service up to 200 OC and are unaffected by sub-zero temperatures. Chemically strengthened soda lime silicate glass is capable of resisting both sudden temperature changes and tempera
49、ture differentials between 1 O0 K and 200 K, depending on thickness and edge work. 10 Marking Chemically strengthened soda lime silicate glass conforming to this European Standard shall be permanently marked. The marking shall give the following information: - name or trademark of manufacturer - number of this European Standard: EN 12337 Page 18 EN 12337-1 : 2000 Annex A (normative) Determination of U value Where U-values are required they shall be obtained by calculation in accordance with EN 673. Annex B (informative) Curved or profiled chemically strengthened soda lime sil
