EN 12337-2:2004

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Glass in building - Chemically strengthened soda lime silicate glass - Part 2: Evaluation of conformity/Product standardVerre dans la construction - Verre de silicate sodo-calcique trempé chimiquement - Partie 2: Evaluation de la conformitéGlas im Bauwesen - Chemisch vorgespanntes Kalknatronglas - Teil 2: Konformitätsbewertung/Produktnorm81.040.20Steklo v gradbeništvuGlass in buildingICS:SIST EN 12337-2:2005enTa slovenski standard je istoveten z:EN 12337-2:200401-marec-2005SIST EN 12337-2:2005SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 12337-2October 2004ICS 81.040.20English versionGlass in building - Chemically strengthened soda lime silicateglass - Part 2: Evaluation of conformity/Product standardVerre dans la construction - Verre de silicate sodo-calciquetrempé chimiquement - Partie 2: Evaluation de laconformitéGlas im Bauwesen - Chemisch vorgespanntesKalknatronglas - Teil 2:Konformitätsbewertung/ProduktnormThis European Standard was approved by CEN on 27 May 2004.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 concerning 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 language 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, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2004 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12337-2:2004: E

Factory production control.18 A.1 Factory Production Control Requirements.18 A.1.1 General.18 A.1.2 Organisation.18 A.1.3 Control system.18 A.2 Marking.19 A.3 Inspection and testing tables of chemically strengthened soda lime silicate glass production.20 A.3.1 Information on Table A.1.20 A.3.2 Use of proxy testing.20 Annex B (informative)
Test methods for factory production control – Strength measurement.23 B.1 Four point bending strength test.23 B.1.1 Requirements.23

B.1.2 Measurement method.23 B.1.3 Test specimens.23 B.2 Alternative mechanical strength test methods.23 B.2.1 Three point bending strength test.23 B.2.2 Concentric bending ring strength test.25 Annex C (informative)
Provisions for voluntary involvement of third party(ies).26 C.1 General.26 C.2 Voluntary tasks for third parties.26 C.3 Marking and labelling.26 Annex ZA (informative)
Clauses of this European Standard addressing the provisions of EU Construction Products Directive.27 ZA.1 Scope and relevant characteristics.27 ZA.2 Procedure(s) for the attestation of conformity of chemically strengthened soda lime silicate glass products.29 ZA.2.1 System(s) of attestation of conformity.29 ZA.2.2 EC Certificate and Declaration of conformity.31 ZA.3 CE marking and labelling.33 Bibliography.35

No existing document is superseded This part of the document does not stand-alone; it is a part of one document:  EN 12337-1: Glass in building – Chemically strengthened soda lime silicate glass – Part 1: Definition and description  EN 12337-2: Glass in building - Chemically strengthened soda lime silicate glass – Part 2: Evaluation of conformity/Product standard
This document contains other aspects of importance of trade.

1 Scope This document covers the evaluation of conformity and the factory production control of flat chemically strengthened soda lime silicate glass for use in buildings.
Note: For glass products with electrical wiring or connections for, e.g. alarm or heating purposes, other directives, e.g. Low Voltage Directive, may apply.
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 (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 572 – 1, Glass in building - Basic soda lime silicate glass products – Part 1: Definition and general physical and mechanical properties EN 572 – 2, Glass in building - Basic soda lime silicate glass products – Part 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 673, Glass in building – Determination of thermal transmittance (U value) – Calculation method EN 1063, Glass in building - Security glazing - Testing and classification of resistance against bullet attack EN 12337-1:2000, Glass in building – Chemically strengthened soda lime silicate glass – Part 1: Definition and description 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 – Product descriptions and determination of properties
EN 12898, Glass in building - Determination of the emissivity prEN 13474, 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 reaction to fire tests EN 13501-2, Fire classification of construction products and building elements - Part 2: Classification using data from fire resistance tests, excluding ventilation services prEN 13501-5, Fire classification of construction products and building elements - Part 5: Classification using test data from external fire exposure to roof tests EN 13541, Glass in building - Security glazing - Testing and classification of resistance against explosion pressure

initial type testing determination of the performance of a product (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 compliance 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, 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 description For conformity purposes the chemically strengthened 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 discretion of the chemically strengthened 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 normative part of the description shall contain the following minimum information: - a reference to EN 12337 parts 1 and 2 and all other standards with which the manufacturer claims compliance. 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 product description. The substituting material can be added to the product family and also the product description when compliance has been demonstrated . 4.2 Conformity with the definition of chemically strengthened soda lime silicate glass Products shall conform to the definition and fulfill the requirements of chemically strengthened soda lime silicate glass as defined in EN 12337-1

4.3 Determination of the characteristic’s performances
4.3.1 Characteristics of chemically strengthened soda lime silicate safety glass 4.3.1.1 General The characteristics of chemically strengthened soda lime silicate safety glass are in general those of the glass substrate ( see 4.3.1.2). 4.3.1.2 Characteristics of the soda lime silicate glass panes used for the production of chemically strengthened soda lime silicate glass Panes shall be made of soda lime silicate glass according to EN 572-1, EN 572-2, EN 572-4, EN 572-5.
For the characteristics listed in Table 1, for the soda lime silicate glass panes, generally accepted values or calculated values may be used.
Since the majority of the characteristics of Table 1 are not changed significantly by the chemical strengthening process they shall be used for chemically strengthened soda lime silicate glass. The exceptions being the characteristic bending strength (fg,k) and the resistance against sudden temperature changes and temperature differentials.

Characteristic
Symbol
Unit
- density - hardness - Young's modulus - Poisson's 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 transmittance - Solar direct transmittance - Total energy transmittance
ρ HK0,1/20 E µ fg,k
c α λ n ε τv τe g
kg/m³ GPa Pa Dimensionless Pa K
J/(kg.K) K-1 W/(m.K) Dimensionless Dimensionless Dimensionless Dimensionless Dimensionless
4.3.2 Determination of characteristics of chemically strengthened soda lime silicate glass products
If the chemically strengthened glass manufacturer wishes to claim that any performance characteristic 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 4.3.2.1 Safety in the case of fire - Resistance to fire Fire resistance shall be determined and classified in accordance with EN 13501-2. Note: EN 357 may be used as a classification reference specific to fire resistant glazed elements. 4.3.2.2 Safety in the case of fire - Reaction to fire Reaction to fire shall be determined and classified in accordance with EN 13501-1. Chemically strengthened soda lime silicate glass products are products/materials that do not require to be tested for reaction to fire (e.g. Products/materials of Classes A1* according to Commission Decision 96/603/EC, as amended 2000/605/EC)

4.3.2.3 Safety in the case of fire - External fire behaviour Where the manufacturer wishes to declare external fire performance (e.g. when subject to regulatory requirements), the product shall be tested and classified in accordance with prEN 13501-5. Note: Compliance with this requirement is not possible until a version of prEN 13501-5 later than 2002 becomes available. 4.3.2.4 Safety in use - Bullet resistance: shatter properties and resistance to attack Bullet resistance shall be determined and classified in accordance with EN 1063 4.3.2.5 Safety in use - Explosion resistance: impact behaviour and resistance to impact Explosion resistance shall be determined and classified in accordance with EN 13541. 4.3.2.6 Safety in use - Burglar resistance: shatter properties and resistance to attack Burglar resistance shall be determined and classified in accordance with EN 356. 4.3.2.7 Safety in use - Pendulum body impact resistance: shatter properties (safe breakablity) and resistance to impact Pendulum body impact resistance shall be determined and classified in accordance with EN 12600. 4.3.2.8 Safety in use - Mechanical resistance: Resistance against sudden temperature changes and temperature differentials The resistance against sudden temperature changes and temperature differentials is a generally accepted value that is given in EN 12337-1 and shall be ensured by compliance with this document. 4.3.2.9 Safety in use - Mechanical resistance: Resistance against wind, snow, permanent load and/or imposed loads of the glass unit The mechanical resistance of chemically strengthened soda lime silicate glass is a characteristic value that is given in EN 12337-1 and shall be ensured by compliance with this document. As long as on the concerned construction or building site no part of prEN 13474 is applicable then the current method of determining mechanical resistance in the country of destination shall be applied.
The manufactured or supplied thickness of chemically strengthened soda lime silicate glass shall conform to the ordered thickness. 4.3.2.10 Protection against noise - Direct airborne sound reduction The sound reduction indexes shall be determined in accordance with EN 12758. However, the information supplied with the incoming glass may be used as the chemical strengthening process does not alter the values. 4.3.2.11 Energy conservation and heat retention - Thermal properties The thermal transmittance value (U-value) shall be determined by calculation in accordance with EN 673 with:  emissivity ε : the declared value of the glass manufacturer. If the information is not available, the emissivity shall be determined in accordance with EN 12898.

The manufacturer shall supply specific installation instructions or make reference to appropriate
Note : The durability of glass products depends on:
 building and construction movements due to various actions;  building and construction vibrations due to various actions;  deflection and racking of the glass support due to various actions;  glass support design (e.g. drainage of infiltrated water in the rebate, prevention of direct contact between glass support members and glass);  accuracy of glass support and glass support member dimensions;  quality of the assembling of glass support members up to a glass support;  quality of installation of the glass support into or onto the buildings or constructions;  glass support expansion due to adsorbed moisture from the air or other sources;  the quality of installation of the glass product into or onto its support.

4.5 Dangerous substances Materials used in products shall not release any dangerous substances in excess of the maximum permitted levels specified in a relevant European Standard for the material or permitted in the national regulations of the Member State of destination 5 Evaluation of conformity 5.1 Genera Evaluation of conformity in accordance with this document shall be as a result of FPC and ITT in accordance with this document 1) Factory production control;
This shall include the following:
a) Inspection of samples taken at the factory in accordance with a prescribed test plan;
b) Initial inspection of the factory and of factory production control;
c) Continuous surveillance and assessment of the factory production control. 2) Initial type testing of the product; Note: There may be a need to involve a third party, with 1b, 1c, and/or 2, for the purpose of regulatory marking (see Annex ZA). 5.2 Initial type testing of the product (see 5.1, 2) 5.2.1 General All the product’s characteristics shall be initial type tested to verify they are in conformity with the requirements of this document. In addition, instead of performing any actual testing, initial type testing may make use of: – generally accepted and/or conventional and/or standardised values, in Clause 2 referenced standards, or in publications that are referred to in these standards; – standardised calculation methods and recognised calculation methods in Clause 2 referenced standards, or in publications that are referred to in these standards; – test report(s) on the basis of 5.2.1.2 when made available except for the characteristics listed in 5.2.2. – where components are used whose characteristics have already been determined, by the component manufacturer, on the basis of conformity with other product standards, these characteristics need not be reassessed providing they remain unchanged by the manufacturing process; – release of dangerous substances may be assessed indirectly by controlling the content of the substance concerned; – durability may be assessed indirectly by controlling the production processes according to this document;

1 The terms ‘manufacturer’ and ‘producer’ are understood as being synonyms (see CPD working document NB-CPD/02/019-issued 24 April 2002 – page1)

The ‘simplest’ type of edge work specified in the manufacturers production control documentation shall be used. However, if an arrissed edge is used then all other types of edge working are deemed to satisfy. The number of test specimens for mechanical strength measurement is given in Table 2.

Product thickness range
Number of test specimens for the mechanical strength measurement
– minimum ≥ 2 – first after minimum ≥ 2 – center of range ≥ 2 – last before maximum ≥ 2 – maximum ≥ 2
TOTAL ≥ 10 NOTE : When the production range consists of: - two thicknesses, the distribution shall be as equal as possible a single thickness, all specimens are of the same thickness
Note: Strength measurement outcomes are expressed in force per unit of area and are therefore independent of the thickness. Hence strength measurements may be performed on a collection of test specimens with different thicknesses. 5.2.2.3 Test results When the mechanical strength is measured, no measured value shall be below that given in Clause 9 of EN 12337-1:2000. However, if one value falls below then the manufacturer shall ensure that the results relate to a 5 % probability of breakage at the lower limit of the 95 % confidence interval.
5.2.3 Initial type testing of characteristic’s performances
All characteristics in 4.3.2 shall be subject to initial type tests in accordance with Clause 5.2.1. Optimising chemical strengthening settings specifically for one characteristic may affect negatively the optimized settings for a different characteristic. When performance of both characteristics will be declared. the affected characteristic shall be subject to a further type test. 5.3 Factory production control and inspection of samples in accordance with a prescribed test plan (see 5.1, 1a and b) Factory production control means the permanent internal control of production exercised by the manufacturer
All elements, requirements and provisions adopted by the manufacturer shall be documented in a systematic manner in the form of written policies and procedures. This production control system documentation shall ensure a common understanding of quality assurance and enable the achievement of the required product characteristics and the effective operation of the production control system to be checked. Factory production control shall be according to Annex A of this document.

Note 1: A factory production control system similar to EN ISO 90012000 made product specific to this document is deemed to satisfy the requirements of this clause. Note 2: There may be a need to involve a third party for the purpose of regulatory marking (see Annex ZA). Annex A of this document also summarizes the tests that shall be carried out by the manufacturer as part of the production control in the factory, and as further testing of samples taken at the factory in accordance with a prescribed test plan. 5.4 Initial inspection of factory and of factory production control (see 5.1, 1c) The initial inspection of the factory and of the factory production control shall cover the parameters listed in Table 3 in conjunction with Annex A. Note: There may be a need to involve a third party for the purpose of regulatory marking (see Annex ZA).
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