1、BRITISH STANDARDBS EN 14321-2:2005Glass in building Thermally toughened alkaline earth silicate safety glass Part 2: Evaluation of conformity/Product standardThe European Standard EN 14321-2:2005 has the status of a British StandardICS 81.040.20g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g
2、37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 14321-2:2005This British Standard was published under the authority of the Standards Policy and Strategy Committee on 26 September 2005 BSI 26 Septem
3、ber 2005ISBN 0 580 46390 7National forewordThis British Standard is the official English language version of EN 14321-2:2005.The UK participation in its preparation was entrusted by Technical Committee B/520, Glass and glazing in building, to Subcommittee B/520/1, Glass and glazing in building Basic
4、 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-referencesThe British Standards which implement international or European publications referred to in this document may be found
5、 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 publication does not purport to include all the necessary provisions of a contract. Users are respons
6、ible 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 international/European committee any enquiries on the interpretation, or proposals for change, and keep UK i
7、nterests informed; monitor related international and European developments and promulgate them in the UK.Summary of pagesThis document comprises a front cover, an inside front cover, the EN title page, pages 2 to 36, an inside back cover and a back cover.The BSI copyright notice displayed in this do
8、cument indicates when the document was last issued.Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 14321-2August 2005ICS 81.040.20English versionGlass in building - Thermally toughened alkaline earth silicatesafety glass - Part 2: Evaluation
9、 of conformity/Product standardVerre dans la construction - Verre alcalinoterreux descurit tremp thermiquement - Partie 2 : Evaluation de laconformit/Norme produitGlas im Bauwesen - Thermisch vorgespanntes Erdalkali-Silicat-Einscheibensicherheitsglas - Teil 2:Konformittsbewertung/ProduktnormThis Eur
10、opean Standard was approved by CEN on 27 June 2005.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references conce
11、rning such nationalstandards 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 other language made by translationunder the responsibility of a CEN member into its own lan
12、guage and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Mal
13、ta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2005 CEN All rights of exploitation in
14、any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14321-2:2005: EEN 14321-2:2005 (E) 2 Contents Page Foreword 3 1 Scope.4 2 Normative references .4 3 Terms and definitions.5 4 Requirements5 5 Evaluation of conformity 10 6 Marking and labelling .16 Annex A (normative) F
15、actory production control 17 Annex B (informative) Tests for factory production control .23 Annex C (informative) Provisions for voluntary involvement of third party(ies).25 Annex ZA (normative) Clauses of this European Standard addressing the provisions of EU Construction Products Directive .26 Bib
16、liography.36 EN 14321-2:2005 (E) 3 Foreword This European Standard (EN 14321-2:2005) 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
17、identical text or by endorsement, at the latest by February 2006, and conflicting national standards shall be withdrawn at the latest by February 2006. This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and suppor
18、ts essential requirements of EU Directive 89/106/EEC. For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. No existing European Standard is superseded. This Part of the European Standard does not stand alone, it is a part of one standard: EN 14
19、321-1: Glass in Building Thermally toughened alkaline earth silicate safety glass Part 1: Definition and description EN 14321-2: Glass in Building - Thermally toughened alkaline earth silicate safety glass Part 2: Evaluation of conformity/Product standard This document contains other aspects of impo
20、rtance of trade. 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, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland,
21、Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 14321-2:2005 (E) 4 1 Scope This European Standard covers the evaluation of conformity and the factory production control of flat thermally toughen
22、ed alkaline earth silicate safety glass for use in buildings. NOTE 1 This also includes requirements subject to regulation. NOTE 2 For glass products with electrical wiring or connections for e.g. alarm or heating purposes, this European Standard covers only wiring subject for electrical potential d
23、ifference to earth less than 50 V a.c. or less than 75 V d.c. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document
24、(including any amendments) applies. EN 356, Glass in Building Security glazing Testing and classification of resistance against manual attack. EN 410, Glass in Building Determination of luminous and solar characteristics of glazing. EN 673, Glass in Building Determination of thermal transmittance (U
25、-value) Calculation method. EN 1063, Glass in Building Security glazing Testing and classification of resistance against bullet attack. EN 1096-1, Glass in Building Coated glass Part 1: Definitions and classification EN 1096-2, Glass in building Coated glass Part 2: Requirements and test methods for
26、 class A, B and S coatings. EN 1096-3, Glass in building Coated glass Part 3: Requirements and test methods for class C and D coatings. EN 12600, Glass in Building Pendulum test Impact test method and classification for flat glass. EN 12758, Glass in Building Glazing and airborne sound insulation Pr
27、oduct descriptions and determination of properties. EN 12898, Glass in Building Determination of the emissivity. prEN 13474 (all parts), Glass in building Design of glass panes. EN 13501-1, Fire classification of construction products and building elements Part 1: Classification using test data from
28、 reaction to fire tests. EN 13501-2, Fire classification of construction products and building elements Part 2: Classification using test data from fire resistance tests. prEN 13501-5, Fire classification of construction products and building elements Part 5: Classification using test data from fire
29、 exposure to roof tests. EN 13541, Glass in Building Security glazing Testing and classification of resistance against explosion pressure. EN 14178-1, Glass in Building Basic alkaline earth silicate glass products Part 1: Float glass. EN 14321-1:2005, Glass in Building Thermally toughened alkaline e
30、arth silicate safety glass Part 1: Definition and description. EN 14321-2:2005 (E) 5 3 Terms and definitions For the purpose of this European Standard, the terms and definitions given in EN 14321-1:2005 and the following apply. 3.1 initial type testing determination of the performance of a product (
31、characteristic, durability), on the basis of either actual tests or other procedures (such as conventional, standardised, tabulated or general accepted values, standardised or recognised calculation methods, test reports when made available, ), in accordance with this document that demonstrates comp
32、liance with this document. 3.2 test report document that covers the results of tests undertaken on a representative sample of the product from production or on a prototype design of the product. 3.3 product description document that details the relevant parameters, e.g. process conditions, structure
33、, etc., for defining a product that complies with the standard. It includes specific reference(s) to characteristics that are modified by the production process. 3.4 significant change variation in performance beyond the permitted tolerance for the characteristic. 4 Requirements 4.1 Product descript
34、ion For conformity purposes the thermally toughened alkaline earth silicate glass manufacturer is responsible for the preparation and maintenance of the product description. This description shall describe the product and/or product families. Disclosure of the product description shall be at the dis
35、cretion of the thermally toughened glass manufacturer or his agent except in the case of regulatory requirements. The description shall contain at least a normative part. The description may also contain an informative part, when the manufacturer foresees further development of the product. The norm
36、ative part of the description shall contain the following minimum information: a reference to EN 14321 Parts 1 and 2 and all other standards with which the manufacturer claims compliance. the radiometric properties and durability of coated glass, i.e. coated glass that conforms with EN 1096-1, EN 10
37、96-2, EN 1096-3, when those properties are changed, intentionally or unintentionally, by the thermal toughening process. The definition of product families shall be consistent with the normative part of the product description. The substitution of materials shall maintain the conformity with the pro
38、duct description. The substituting material can be added to the product family and also the product description when compliance has been demonstrated. EN 14321-2:2005 (E) 6 4.2 Conformity with the definition of thermally toughened alkaline earth silicate safety glass Products shall conform to the de
39、finition and fulfil the requirements of thermally toughened alkaline earth silicate safety glass as defined in EN 14321-1. 4.3 Determination of the performances of characteristics 4.3.1 Characteristics of thermally toughened alkaline earth silicate safety glass 4.3.1.1 General The characteristics of
40、 thermally toughened alkaline earth silicate safety glass are those of the glass substrate (see 4.3.1.2). 4.3.1.2 Characteristics of glass panes used for thermally toughened alkaline earth silicate safety glass Panes shall be made of basic alkaline earth silicate glass products according to EN 14178
41、-1. The panes may be coated according to EN 1096-1, EN 1096-2, EN 1096-3 and/or enamelled according to EN 14321-1. For the characteristics listed in Table 1, for thermally toughened alkaline earth silicate safety glass, generally accepted values or calculated values may be used. Since the majority o
42、f the characteristics of Table 1 are not changed significantly by the thermal toughening process they shall be used for thermally toughened alkaline earth silicate safety glass. The exceptions shall be the characteristic bending strength (fg,k) and the resistance against sudden temperature changes a
43、nd temperature differentials. EN 14321-2:2005 (E) 7 Table 1 Information on the characteristics of basic alkaline earth silicate glass, according to EN 14178-1, used for the production of thermally toughened alkaline earth silicate safety glass Characteristic Symbol Unit - density - hardness - Youngs
44、 modulus - Poissons ratio - Characteristic bending strength - Resistance against sudden temperature changes and temperature differentials - Specific heat capacity - Coefficient of linear expansion - Thermal conductivity (for U-value) - Mean refractive index to visible radiation - Emissivity - Light
45、transmittance - Solar direct transmittance - Total energy transmittance HK0,1/20 E fg,k c n veg kg/m GPa Pa Dimensionless Pa K J/(kg.K) K-1W/(m.K) Dimensionless Dimensionless Dimensionless Dimensionless Dimensionless If some coatings, i.e. coated glass conforming with the EN 1096 series, when therma
46、lly toughened change their radiometric properties the manufacturer shall refer to the following for the determination of the appropriate characteristics, etc.: 4.3.2.12 for the emissivity; 4.3.2.13 for the light transmittance and reflectance; 4.3.2.14 for the solar energy transmittance; EN 1096-2 fo
47、r the durability of A, B and S coatings; EN 1096-3 for the durability of C and D coatings. 4.3.2 Determination of characteristics of thermally toughened alkaline earth silicate safety glass products 4.3.2.1 General If the thermally toughened glass manufacturer wishes to claim that any performance ch
48、aracteristic is independent of the production equipment used then the factory production control system shall be in accordance with this document including his specific process control conditions EN 14321-2:2005 (E) 8 4.3.2.2 Safety in the case of fire - Resistance to fire Fire resistance shall be d
49、etermined and classified in accordance with EN 13501-2. Note EN 357 may be used as a classification reference specific to fire resistant glazed elements. 4.3.2.3 Safety in the case of fire - Reaction to fire Reaction to fire shall be determined and classified in accordance with EN 13501-1. Thermally toughened alkaline earth silicate safety glass products are products/materials that do not require to be tested for reaction to fire (e.g. Products/materials of Classes A1 accord
