SIST EN 1279-5:2005
(Main)Glass in building - Insulating glass units - Part 5: Evaluation of conformity
Glass in building - Insulating glass units - Part 5: Evaluation of conformity
This document specifies requirements, the evaluation of conformity and the factory production control of insulating glass units for use in buildings.
NOTE 1 For glass products with electrical wiring or connections for e.g. alarm or heating purposes, other directives, e.g. Low Voltage Directive, may apply.
The main intended uses of the insulating glass units are installations in windows, doors, curtain walling, roofs and partitions where there exists protection against direct ultraviolet radiation at the edges.
NOTE 2 In cases where there is no protection against direct ultra-violet radiation at the edges, such as structural sealant glazing systems, additional European technical specifications should be followed (e.g. prEN XXX, prEN 13022-1).
NOTE 3 Units for which the intended use is only 'artistic' and therefore no essential requirement is required, are not subject to CE marking and are not part of this document.
Glas im Bauwesen - Mehrscheiben-Isolierglas - Teil 5: Konformitätsbewertung
Diese Euroäische Norm legt Anforderungen an sowie die Konformitätsbewertung und die werkseigene
Produktionskontrolle für Mehrscheiben-Isolierglas zur Verwendung in Gebäuden fest.
ANMERKUNG 1 Für Glasprodukte mit elektrischer Verdrahtung oder elektrischen Anschlüssen, z. B. zu Alarm- oder
Heizzwecken, gelten möglicherweise weitere Richtlinien, z. B. die Niederspannungsrichtlinie.
Der vorgesehene Hauptverwendungszweck der Mehrscheiben-Isoliergläser ist der Einbau in Fenster, Türen,
Vorhangfassaden, Dächer und Trennwände, wobei die Ränder des Glases gegen direkte UV-Strahlung
geschützt sind.
ANMERKUNG 2 Falls die Ränder nicht gegen direkte UV-Strahlung geschützt sind, wie z. B. bei geklebten
Verglasungen (?Structural Sealant Glazingiu-Systeme), sollten zusätzliche Europäische Technische Spezifikationen befolgt
werden (z. B. 00129113, prEN 13022-1).
ANMERKUNG 3 Einheiten, die nur für ?künstlerischeim Zwecke vorgesehen sind und für die daher keine wesentlichen
Anforderungen gelten, sind nicht Gegenstand der CE-Kennzeichnung und werden von dieser Europäischen Norm nicht
erfasst.
Verre dans la construction - Vitrage isolant - Partie 5: Evaluation de la conformité
La présente Norme européenne spécifie des exigences relatives a l'évaluation de la conformité et au contrôle de la production en usine des vitrages isolants utilisés dans la construction.
NOTE 1 Pour les produits verriers équipés d'un câblage ou de branchements électriques pour les besoins d'alarme ou de chauffage, par exemple, d'autres directives, comme par exemple la Directive "Basse(s) Tension(s)", peuvent s'appliquer.
Les usages prévus des vitrages isolants sont principalement les installations dans des fenetres, portes, murs rideaux, toitures et cloisons offrant une protection des bords contre les rayonnements ultraviolets directs.
NOTE 2 En l'absence de protection contre les rayonnements ultraviolets directs sur les bords, comme par exemple pour les vitrages extérieurs collés, il convient de se conformer a d'autres spécifications techniques européennes (par exemple 00129113, prEN 13022-1).
NOTE 3 Les vitrages de nature purement "artistique", et pour lesquels aucune exigence essentielle n'est requise, ne sont pas soumis au marquage CE et ne sont pas couverts par la présente Norme européenne.
Steklo v gradbeništvu – Izolacijsko steklo – 5. del: Ovrednotenje skladnosti
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Glass in building - Insulating glass units - Part 5: Evaluation of conformitySteklo v gradbeništvu – Izolacijsko steklo – 5. del: Ovrednotenje skladnostiVerre dans la construction - Vitrage isolant - Partie 5: Evaluation de la conformitéGlas im Bauwesen - Mehrscheiben-Isolierglas - Teil 5: Konformitätsbewertung81.040.20Steklo v gradbeništvuGlass in buildingICS:SIST EN 1279-5:2005enTa slovenski standard je istoveten z:EN 1279-5:200501-september-2005SIST EN 1279-5:2005SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 1279-5May 2005ICS 81.040.20English versionGlass in building - Insulating glass units - Part 5: Evaluation ofconformityVerre dans la construction - Vitrage isolant préfabriquéscellé - Partie 5: Evaluation de la conformitéGlas im Bauwesen - Mehrscheiben-Isolierglas - Teil 5:KonformitätsbewertungThis European Standard was approved by CEN on 24 March 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 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© 2005 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 1279-5:2005: E
EN 1279-5:2005 (E) 2 Contents Page Foreword.3 1 Scope.4 2 Normative references.4 3 Terms and definitions.5 4 Requirements.6 4.1 Product description.6 4.2 Conformity with the definition of insulating glass units.6 4.3 Determination of the characteristic’s performances.6 4.4 Durability.10 4.5 Dangerous substances.10 5 Evaluation of conformity.10 5.1 General.10 5.2 Initial type testing of the product (see 5.1, b)).11 5.3 Factory production control and inspection of samples in accordance with a prescribed test plan (5.1, 1) and 2)).13 5.4 Initial inspection of factory and of factory production control (5.1, a), 2)).14 5.5 Continuous surveillance and assessment of the factory production control (5.1, e)).15 6 Marking and/or labelling.16 6.1 General.16 6.2 Product marking.16 6.3 Product characteristics.16 6.4 “Characteristics/performance identification paper”.16 Annex A (informative)
Use of IGUs when subjected to UV and/or in SSG.17 Annex B (informative)
Installation of the insulating glass units.18 Annex C (informative)
Provisions for voluntary involvement of third party(ies).21 Annex ZA (informative)
Clauses of this European Standard addressing the provisions of EU Construction Products Directive.22 Bibliography.31
EN 1279-5:2005 (E) 3 Foreword This European Standard (EN 1279-5:2005) has been prepared by Technical Committee CEN/TC 129 "Glass in building", the secretariat of which is held by IBN/BIN. 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 November 2005, and conflicting national standards shall be withdrawn at the latest by November 2005. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). 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 part of one standard with the general title Glass in building - Insulating glass units: Part 1: Generalities, dimensional tolerances and rules for the system description Part 2: Long term test method and requirements for moisture penetration Part 3: Long term test method and requirements for gas leakage rate and for gas concentration tolerances Part 4: Methods of test for the physical attributes of edge seals Part 5: Evaluation of conformity Part 6: Factory production control and periodic tests This European Standard contains other aspects of importance of trade. This European Standard includes a Bibliography. 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, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EN 1279-5:2005 (E) 4 1 Scope This European Standard specifies requirements, the evaluation of conformity and the factory production control of insulating glass units for use in buildings. NOTE 1 For glass products with electrical wiring or connections for e.g. alarm or heating purposes, other directives, e.g. Low Voltage Directive, may apply. The main intended uses of the insulating glass units are installations in windows, doors, curtain walling, roofs and partitions where there exists protection against direct ultraviolet radiation at the edges. NOTE 2 In cases where there is no protection against direct ultra-violet radiation at the edges, such as structural sealant glazing systems, additional European technical specifications should be followed (e.g. 00129113, prEN 13022-1). NOTE 3 Units for which the intended use is only ‘artistic’ and therefore no essential requirement is required, are not subject to CE marking and are not part of this European Standard. 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: Definitions and general physical and mechanical properties EN 673, Glass in building – Determination of thermal transmittance (U value) – Calculation method EN 674, Glass in building – Determination of thermal transmittance (U value) – Guarded hot plate method EN 675, Glass in building – Determination of thermal transmittance (U value) – Heat flow meter method EN 1063, Glass in building – Security glazing – Testing and classification of resistance against bullet attack EN 1279-1:2004, Glass in building – Insulating glass units – Part 1: Generalities, dimensional tolerances and rules for the system description EN 1279-2:2002, Glass in building – Insulating glass units – Part 2: Long term test method and requirements for moisture vapour penetration EN 1279-3:2002, Glass in building – Insulating glass units – Part 3: Long term test method and requirements for gas leakage rate and for gas concentration tolerances EN 1279-4:2002, Glass in building – Insulating glass units – Part 4: Methods of test for the physical attributes of edge seals EN 1279-6:2002, Glass in building – Insulating glass units – Part 6: Factory production control and periodic tests EN 1748-1-1, Glass in building – Special basic products – Borosilicate glasses – Part 1-1: Definition and general physical and mechanical properties EN 1748-2-1, Glass in building – Special basic products – Part 2-1: Glass ceramics – Part 2-1: Definition and general physical and mechanical properties
EN 1279-5:2005 (E) 5 EN 1863-1, Glass in building – Heat strengthened soda lime silicate glass – Part 1: Definition and description EN 12150-1, Glass in building – Thermally toughened soda lime silicate safety glass – Part 1: Definition and description EN 12337-1, 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 13022-1, Glass in building – Structural sealant glazing – Part 1: Glass products for structural sealant glazing systems – Supported and unsupported monolithic and multiple glazing EN 13024-1, Glass in building – Thermally toughened borosilicate safety glass – Part 1: Definition and description 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 test data from
fire resistance tests, excluding ventilation services prEN 13501-5, Fire classification of construction products and building elements – Part 5: Classification using data from external fire 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 ISO 12543-1, Glass in building – Laminated and laminated safety glass - Part 1: Definition and description of component parts (ISO 12543-1:1998)
3 Terms and definitions For the purposes of this European Standard, the terms and definitions given in EN 1279-1:2004, EN 1279-2:2002, EN 1279-3:2002, EN 1279-4:2002 and EN 1279-6:2002 and the following apply. 3.1 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 European Standard that demonstrates compliance with this European Standard 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 references to characteristics that are modified by the production process
EN 1279-5:2005 (E) 6 3.4 significant change variation in performance beyond the permitted tolerance for the characteristic 4 Requirements 4.1 Product description For conformity purposes the insulating glass unit 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 insulating glass unit 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 1279 Part 1, 2, 3, 4 and 6 and all other standards with which the manufacturer claims compliance; system description. 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 insulating glass units Products shall conform to the definition and fulfil the requirements of insulating glass units as defined in EN 1279-1. 4.3 Determination of the characteristic’s performances 4.3.1 Characteristics of glass panes for use in insulating glass units For panes made of glass covered by European specifications generally accepted values, declared values, or calculated values of the characteristics listed in Table 1 shall be used. For panes made of glass not covered by European specifications measured values of the characteristics listed in Table 1 shall be used, and their chemical and mechanical stability over time shall be demonstrated (refer to 5.2.4).
EN 1279-5:2005 (E) 7 Table 1 - Necessary information on characteristics of glass panes for use in insulating glass units
Characteristic
Symbol
Unit - density - hardness - Young's modulus - Poisson's ratio - characteristic bending strength - specific heat capacity - coefficient of linear expansion - thermal conductivity - mean refractive index to visible radiation - emissivity - light transmittance - solar direct transmittance - total solar energy transmittance ρ HK 0,1/20 E µ fk c α λ n ε τv τe g kg/m³ GPa Pa Dimensionless Pa J/(kg·K) K-1 W/(m·K) Dimensionless Dimensionless Dimensionless Dimensionless Dimensionless
4.3.2 Determination of characteristics of insulating glass units 4.3.2.1 General If the insulating 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 European Standard including his specific process control conditions. 4.3.2.2 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. 4.3.2.3 Safety in the case of fire - Reaction to fire Reaction to fire shall be determined and classified in accordance with EN 13501-1. For classification, consideration shall be given to: a) the following product changes require new type testing on reaction to fire: reduction of the reaction to fire classification of the glass components in the insulating glass unit; reduction of the reaction to fire performance of the organic sealant in the edge seal; b) however when not tested, the insulating glass unit shall be classified either: by the reaction to fire classification of the glass component used in the insulating glass unit, or by the classification of an insulating glass units using the same organic sealant in the edge seal,
EN 1279-5:2005 (E) 8 the classification claimed shall be the lower of the two possibilities. 4.3.2.4 Safety in the case of fire - External fire performance 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. For classification, consideration shall be given to: a) the following product changes require new type testing on external fire behaviour: - reduction of external fire behaviour of the glass component in the insulating glass unit; b) however when not tested, the insulating glass unit shall be classified by the external fire performance of the glass components used in the insulating glass unit. The classification claimed shall be that of the glass component with least performance. 4.3.2.5 Safety in use - Bullet resistance: shatter properties and resistance to attack Bullet resistance shall be determined and classified in accordance with EN 1063. In those instances when a bullet resistant glass component is used as the non-attack face of an insulating glass unit then there is no need to test. The classification of the insulating glass unit shall be the same as the glass component used. 4.3.2.6 Safety in use - Explosion resistance: shatter properties and resistance to impact Explosion resistance shall be determined and classified in accordance with EN 13541. In those instances when an explosion resistant glass component is used as the non-attack face of an insulating glass unit then there is no need to test. The classification of the insulating glass unit shall be the same as the glass component used. 4.3.2.7 Safety in use - Burglar resistance shatter properties and resistance to attack Burglar resistance shall be determined and classified in accordance with EN 356. In those instances when a burglar resistant glass component is used as the non-attack face of an insulating glass unit then there is no need to test. The classification of the insulating glass unit shall be the same as the glass component used. 4.3.2.8 Safety in use - Pendulum body impact resistance: shatter properties (safe breakability) and resistance to impact Pendulum body impact resistance shall be determined and classified on the glass components in accordance with EN 12600. NOTE EN 12600 tests and classifies individual pane of glass and NOT products such as insulating glass units. As not tested, the insulating glass unit shall be classified the same as the pendulum body impact resistance of the weakest glass component used in the insulating glass unit.
EN 1279-5:2005 (E) 9 4.3.2.9 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 the appropriate standards: e.g. EN 1863-1, EN 12150-1, EN 12337-1, EN 13024-1, etc., and shall be ensured by compliance with this European Standard. 4.3.2.10 Safety in use - Mechanical resistance: Resistance against wind, snow, permanent load and/or imposed loads of the glass unit The ordered assemblies of insulating glass units (thickness and types of glass components, cavity width) shall ensure the resistance against wind, snow, permanent load, and other mechanical, (quasi-) static action, which shall be checked in accordance with prEN 13474. 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 insulating glass shall conform to the ordered thickness and assembly. The edge seal strength determined in accordance with EN 1279-4 is part of the definition of insulating glass units and is not subject for separate information. When additional ultraviolet resistance and/or increased mechanical resistance is required (e.g. where no protection against ultraviolet is applicable, or where insulating glass units are used in structural sealant glazing), the edge seal strength shall be determined in accordance with prEN 13022-1 using a sealant in accordance with 00129113. See Annex A. 4.3.2.11 Direct airborne sound reduction The sound reduction indexes shall be determined in accordance with EN 12758. 4.3.2.12 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; nominal thickness of the glass panes; nominal thickness of any other material layer, if any; the nominal cavity width; assuming that the panes are parallel; the nominal gas concentration ci,o , or the final gas concentration ci,f (see EN 1279-3). NOTE In the case of gas filled units EN 1279-3 should be consulted in order that the U-value for publication includes all the relevant negative aspects. In those instances when the thermal transmittance value (U-value) cannot be calculated then it shall be determined by testing in accordance with EN 674 or EN 675. 4.3.2.13 Energy conservation and heat retention - Radiation properties: Light transmittance and reflectance The light transmittance and reflectance shall be determined in accordance with EN 410. 4.3.2.14 Energy conservation and heat retention - Radiation properties: Solar energy characteristics The solar energy characteristic shall be determined in accordance with EN 410.
EN 1279-5:2005 (E) 10 4.4 Durability When products conform to the definition of insulating glass unit as in 4.2, the characteristics’ performances in 4.3.2 are ensured during an economically reasonable working life. The durability of insulating glass units, including their characteristics, shall be insured by the following: compliance with this European Standard; compliance with instructions from the glass product manufacturer or supplier. The manufacturer shall supply specific installation instructions or make reference to appropriate technical specifications, see also Annex B. 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 General Evaluation of conformity in accordance with this document shall be as a result of FPC and ITT in accordance with this European Standard. 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.
EN 1279-5:2005 (E) 11 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 European Standard. 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 the 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 5.2.3 when made available; 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 European Standard. NOTE 1 Products CE marked in accordance with appropriate harmonised European specifications may be presumed to have the performances stated with the CE marking. NOTE 2 There may be a need to involve a third party for the purpose of regulatory marking (see Annex ZA). When actual testing is required then the Initial Type Testing (ITT) shall be undertaken on a sample representative of the product taken from direct production or a prototype, any plant and/ or line. Whenever a change occurs in the raw material or the production process (subject to the definition of the family), which would change significantly one or more of the characteristics, the type tests shall be repeated for the appropriate characteristics. 5.2.2 Multiple lines/sites If a manufacturer operates one and/or more lines and/or sites, the following can reduce the requirement for multiple Initial Type Testing (ITT): a) the manufacturers’ technical file for a product shall specifically cover all sites and/or lines of the same manufacturer1; b) the manufacturer shall establish a direct relationship between production control, initial type testing and on-going internal audit testing; c) the manufacturer shall have a responsible individual designated to ensure product compliance based on:
1 The terms ‘manufacturer’ and ‘producer’ are understood as being synonyms (see CPD working document NB-CPD/02/019-issued 24 April 2002 – page1).
EN 1279-5:2005 (E) 12 the operation of a consistent Factory Production Control system on all applicable sites and/or lines; the manufacturer having obtained evidence that shows the product to be consistent, with respect to both product characteristics and intended use characteristics; the manufacturer has in place an internal auditing scheme, including product consistency. 5.2.3 Historic data (a) For all characteristics except those listed in 5.2.4 the following applies: Tests previously performed in accordance with the provisions of this document (same product, same characteristic(s), same or more onerous test method, sampling method and attestation of conformity) may be taken into account. (b) For characteristics listed in 5.2.4, the following applies: Tests previously performed in accordance with the provisions of this European Standard may be taken into account when all of the following conditions are met: 1) a Notified Body has confirmed the results of tests conducted by a non-notified body and is satisfied with the competence of the testing body; 2) tests have been conducted in accordance with a prEN version that shall not be materially different
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