1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 572-1:2012Glass in building Basic sodalime silicate glass productsPart 1: Definitions and general physical andmechanical propertiesCopyright European Committee for Standard
2、ization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 572-1:2012 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 572-1:2012. Itsupersedes BS EN 572-1:2004 which is withdrawn.The UK
3、participation in its preparation 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.
4、Users are responsible for its correctapplication. The British Standards Institution 2012. Published by BSI StandardsLimited 2012ISBN 978 0 580 76528 5ICS 81.040.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority o
5、f theStandards Policy and Strategy Committee on 31 July 2012.Amendments issued since publicationDate Text affectedCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 572-1:2012
6、EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 572-1 July 2012 ICS 01.040.81; 81.040.20 Supersedes EN 572-1:2004English Version Glass in building - Basic soda lime silicate glass products - Part 1: Definitions and general physical and mechanical properties Verre dans la construction - Produits
7、 de base: verre de silicate sodo-calcique - Partie 1: Dfinitions et proprits physiques et mcaniques gnrales Glas im Bauwesen - Basiserzeugnisse aus Kalk-Natronsilicatglas - Teil 1: Definitionen und allgemeine physikalische und mechanische Eigenschaften This European Standard was approved by CEN on 1
8、1 May 2012. 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 national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be o
9、btained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official 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
10、 CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Irel
11、and, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue
12、Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 572-1:2012: ECopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitt
13、ed without license from IHS-,-,-BS EN 572-1:2012EN 572-1:2012 (E) 2 Contents Page Foreword 31 Scope 42 Normative references 43 Terms and definitions .54 General principles55 Chemical composition 55.1 General 55.2 Tint 66 Physical and mechanical characteristics 66.1 General characteristics .66.2 Char
14、acteristic bending strength (fg,kk) .76.3 Designation of clear glass 76.3.1 General 76.3.2 Clear transparent glass .76.3.3 Clear translucent glass .86.4 Stability of physical and chemical characteristics .96.5 General quality criteria and their evaluation .96.5.1 Optical .96.5.2 Appearance 9Bibliogr
15、aphy . 10Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 572-1:2012EN 572-1:2012 (E) 3 Foreword This document (EN 572-1:2012) has been prepared by Technical Committee CEN/T
16、C 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 endorsement, at the latest by January 2013, and conflicting national standards shall be withdrawn at the lates
17、t by January 2013. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 572-1:2004. This document has been prep
18、ared under a mandate given to CEN by the European Commission and the European Free Trade Association. This edition is a revision of EN 572-1:2004. The main changes in this edition are: a) a better explanation of the characteristic bending strength of glass; b) an extension of the minimum light trans
19、mittance value for translucent glass up to 19 mm; c) the bibliography has been complemented. This European Standard “Glass in building Basic soda lime silicate glass products” consists of the following parts: Part 1: Definitions and general physical and mechanical properties; Part 2: Float glass; Pa
20、rt 3: Polished wired glass; Part 4: Drawn sheet glass; Part 5: Patterned glass; Part 6: Wired patterned glass; Part 7: Wired or unwired channel shaped glass; Part 8: Supplied and final cut sizes; Part 9: Evaluation of conformity/Product standard. According to the CEN/CENELEC Internal Regulations, th
21、e national standards organisations 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, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvi
22、a, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted
23、 without license from IHS-,-,-BS EN 572-1:2012EN 572-1:2012 (E) 4 1 Scope This Part of this European Standard specifies and classifies basic glass products and indicates their chemical composition, their main physical and mechanical characteristics and defines their general quality criteria. Specifi
24、c dimensions and dimensional tolerances, description of faults, quality limits and designation for each basic product type are not included in this Part, but are given in other Parts of EN 572 specific to each product type: EN 572-2 Float glass EN 572-3 Polished wired glass EN 572-4 Drawn sheet glas
25、s EN 572-5 Patterned glass EN 572-6 Wired patterned glass EN 572-7 Wired or unwired channel shaped glass EN 572-8 Supplied and final cut sizes EN 572-9 Evaluation of conformity/Product standard 2 Normative references The following documents, in whole or in part, are normatively referenced in this do
26、cument and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 410, Glass in building Determination of luminous and solar characteristics of glazing E
27、N 572-2, Glass in building Basic soda lime silicate glass products Part 2: Float glass EN 572-3, Glass in building Basic soda lime silicate glass products Part 3: Polished wired glass EN 572-4, Glass in building Basic soda lime silicate glass products Part 4: Drawn sheet glass EN 572-5, Glass in bui
28、lding Basic soda lime silicate glass products Part 5: Patterned glass EN 572-6, Glass in building Basic soda lime silicate glass products Part 6: Wired patterned glass EN 572-7, Glass in building Basic soda lime silicate glass products Part 7: Wired or unwired channel shaped glass EN 572-8, Glass in
29、 building Basic soda lime silicate glass products Part 8: Supplied and final cut sizes EN 572-9, Glass in building Basic soda lime silicate glass products Part 9: Evaluation of conformity/Product standard ISO 9385, Glass and glass-ceramics Knoop hardness test Copyright European Committee for Standar
30、dization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 572-1:2012EN 572-1:2012 (E) 5 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 float flat, transparent, cle
31、ar or tinted soda-lime silicate glass having parallel and polished faces obtained by continuous casting and floatation on a metal bath Note 1 to entry: In French called glace and in German Floatglas. 3.2 drawn sheet glass flat, transparent, clear or tinted soda-lime silicate glass obtained by contin
32、uous drawing, initially vertically, of a regular thickness and with the two surfaces fire polished Note 1 to entry: Drawn sheet glass covers three products: new antique drawn sheet glass, drawn sheet glass for renovation and drawn sheet glass with minimum visual faults. 3.3 patterned glass flat, tra
33、nslucent, clear or tinted soda-lime silicate glass obtained by continuous casting and rolling 3.4 wired patterned glass flat, translucent, clear or tinted soda-lime silicate glass obtained by continuous casting and rolling which has a steel mesh welded at all intersections incorporated in the glass
34、during its manufacturing process Note 1 to entry: The surfaces can be either patterned or plain. Note 2 to entry: In German, wired patterned glass with plain surfaces is called Drahtglas. 3.5 polished wired glass flat, transparent, clear soda-lime silicate glass having parallel and polished faces ob
35、tained by grinding and polishing the faces of wired patterned glass 3.6 wired or unwired channel-shaped glass translucent, clear or tinted soda-lime silicate glass, wired or unwired, obtained by continuous casting and rolling, which is formed into a U shape during the manufacturing process 4 General
36、 principles EN 572-1 shall be read in conjunction with Parts 2 to 9 of this European Standard. 5 Chemical composition 5.1 General The basic glass products covered by this European Standard are all manufactured from soda-lime silicate glass. Copyright European Committee for Standardization Provided b
37、y IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 572-1:2012EN 572-1:2012 (E) 6 The magnitude of the proportions by mass of the principal constituents of soda-lime silicate glass covered by this European Standard is as follows: Silic
38、on dioxide (SiO2) 69 % to 74 % Calcium oxide (CaO) 5 % to 14 % Sodium oxide (Na2O) 10 % to 16 % Magnesium oxide (MgO) 0 % to 6 % Aluminium oxide (Al2O3) 0 % to 3 % Others 0 % to 5 % In addition to the above general composition, these glasses may also contain small quantities of other substances. 5.2
39、 Tint Body tinted glass is obtained by the addition of suitable materials. 6 Physical and mechanical characteristics 6.1 General characteristics Conventional numerical values for the physical and mechanical characteristics of basic soda lime silicate glass products excluding Characteristic bending s
40、trength (fg,kk) are given in Table 1. These values, for normal annealed glass without any further toughening, are not precise requirements with which the glass shall strictly comply, but are the generally accepted figures for use in calculations where a high degree of accuracy is not required. Table
41、 1 General characteristic values of basic soda lime silicate glass Characteristic Symbol Value and unit Density (at 18 C) 2 500 kg/m3Hardness (Knoop) HK0,1/206 GPa aYoungs modulus (modulus of elasticity) E 7 1010Pa Poissons ratio 0,2 Specific heat capacity cp0,72 103J/(kg K) Nominal value of average
42、 coefficient of linear expansion between 20 C and 300 C 9 10-6/K Resistance against temperature differential and sudden temperature change 40 K bThermal conductivity 1 W/(m K) Mean refractive index to visible radiation (at 589,3 nm) n 1,5 Emissivity (corrected) 0,837 aKnoop Hardness in accordance wi
43、th ISO 9385. bGenerally accepted value that is influenced by edge quality and glass type. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 572-1:2012EN 572-1:2012 (E) 7 6.2
44、Characteristic bending strength (fg,kk) The characteristic bending strength value applies to quasi-static loading over a short time (e.g. wind loading) and relate to a 5 % probability of breakage at the lower limit of the 95 % confidence interval. The value of the characteristic bending strength, fg
45、kk,for soda lime silicate glass is 45 N/mm. NOTE Methods for the determination of the bending strength of glass are given in EN 1288 Parts 1 to 5 (see 1). Design of glass panes is covered by prEN 13474 (see 6). 6.3 Designation of clear glass 6.3.1 General A glass product is designated as clear glas
46、s when it is not tinted and when the light transmittance of the glass material, unmodified by the possible presence of a coating or surface roughness of, for example, a patterned glass, complies with 6.3.3. In order to measure the light transmittance characteristics of glass and to determine whether
47、 it can be designated as a clear glass, it is necessary, in some cases, to carry out a pre-treatment such as the following. Coatings on smooth surfaces shall be eliminated, without modifying the thickness of the glass substrate. Rough surfaces, with or without coatings, shall be eliminated by smooth
48、ing and polishing. The thickness of the glass will be modified by this process. The light transmittance of the glass substrate shall be measured with its surfaces in a polished condition. NOTE The light transmittance values given in 6.3.2 and 6.3.3 are not suitable for design. They are values used only for the designation of clear glass and exclude the effects of coatings and of surface roughness. The values of light transmittance used for design can be obtained from the glass manufactur
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