EN 14178-2:2004

Glass in building - Basic alkaline earth silicate glass products - Part 2: Evaluation of conformity/Product standard

This document covers the evaluation of conformity and the factory production control of basic alkaline earth silicate glass products 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.

Glas im Bauwesen - Basiserzeugnisse aus Erdalkali-Silicatglas - Teil 2: Konformitätsbewertung/Produktnorm

Diese Europäische Norm umfasst die Konformitätsbewertung und die werkseigene Produktionskontrolle für Basiserzeugnisse aus Erdalkali-Silicatglas zur Anwendung im Bauwesen.
ANMERKUNG   Für Glaserzeugnisse mit elektrischer Verkabelung oder Anschlüssen, wie z. B. Alarm- oder Heizungsanwendungen, können andere Richtlinien, z.B. die Niedrigspannungsrichtlinie, gelten.

Verre dans la construction - Produits verriers de silicate alcalino-terreux de base - Partie 2: Evaluation de la conformité

Le présent document couvre l'évaluation de la conformité et le contrôle de la production en usine pour les produits verriers de silicate alcalino-terreux de base utilisés dans la construction.
NOTE   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 sur les Courants Faibles peuvent s'appliquer.

Steklo v stavbah - Osnovni izdelki iz zemljoalkalijskega silikatnega stekla – 2. del: Ovrednotenje skladnosti/standard za izdelek

General Information

• Status: Published
• Publication Date: 12-Oct-2004
• Withdrawal Date: 30-Jul-2006
• ICS: 81.040.20 - Glass in building
• Technical Committee: CEN/TC 129 - Glass in building
• Drafting Committee: CEN/TC 129/WG 1 - Basic glass products
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 13-Oct-2004
• Completion Date: 13-Oct-2004
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Directive: 89/106/EEC - Construction products
• Mandate: M/135 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on flat glass, profiled glass and glass block products
• Ref Project: SIST EN 14178-2:2005 - Glass in building - Basic alkaline earth silicate glass products - Part 2: Evaluation of conformity/Product standard

Relations

• Revised: prEN 14178-2 - Glass in building - Basic alkaline earth silicate glass products - Part 2: Product standard
• Effective Date: 19-Jan-2023

Overview

EN 14178-2:2004 - Glass in building - Basic alkaline earth silicate glass products - Part 2: Evaluation of conformity / Product standard (CEN) defines how manufacturers demonstrate that basic alkaline earth silicate glass products for buildings meet required performance and durability. It covers the procedures for evaluation of conformity, factory production control (FPC), product marking/labelling and the relationship to EU regulatory requirements (Annex ZA). Note: glass products that include electrical wiring or connections may also fall under other directives (e.g., Low Voltage Directive).

Key topics and requirements

• Scope and definitions: Builds on EN 14178-1 (float glass) and uses agreed terms such as initial type testing, test report and product description.
• Performance characteristics: Specifies how to determine or declare:
  • Optical and solar properties (EN 410)
  • Thermal transmittance / U‑value (calculation per EN 673 using emissivity from EN 14178-1)
  • Mechanical resistance, impact and safety performance (EN 12600, EN 356, EN 1063, EN 13541)
  • Fire behaviour - reaction and resistance classifications (EN 13501‑1, EN 13501‑2, prEN 13501‑5)
  • Sound reduction (EN 12758)
  • Durability expectations for an economically reasonable working life
• Conformity assessment routes:
  • Initial type testing and test reporting
  • Factory production control (normative Annex A) - organisation, control system, inspection/testing tables
  • Initial factory inspection, continuous surveillance and assessment
  • Optional third‑party involvement (informative Annex B)
• Marking and documentation: Product marking, performance identification papers and CE marking guidance (Annex ZA) linked to the EU Construction Products Directive.

Practical applications & users

• Who uses it: Glass manufacturers, quality managers, testing laboratories, notified bodies, façade and glazing fabricators, architects, specifiers, building inspectors and procurement teams.
• Why it matters:
  • Provides a standardized route to demonstrate compliance for basic alkaline earth silicate glass used in buildings.
  • Enables consistent declaration of optical, thermal, mechanical, acoustic and fire performance for specification and regulatory approval.
  • Supports CE marking and harmonised conformity assessment when placing products on the EU market.

Related standards

• EN 14178-1:2004 (Float glass - product definition and characteristics)
• EN 410, EN 673, EN 12600, EN 356, EN 1063, EN 13501‑1/2/5, EN 13541, EN 12758, prEN 13474 (referenced normative standards for testing/classification)

Keywords: EN 14178-2, basic alkaline earth silicate glass, evaluation of conformity, factory production control, glass in building, CE marking, U-value, EN 14178-1.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Glass in building - Basic alkaline earth silicate glass products - Part 2: Evaluation of conformity/Product standardSteklo v stavbah - Osnovni izdelki iz zemljoalkalijskega silikatnega stekla – 2. del: Ovrednotenje skladnosti/standard za izdelekVerre dans la construction - Produits verriers de silicate alcalino-terreux de base - Partie 2: Evaluation de la conformitéGlas im Bauwesen - Basiserzeugnisse aus Erdalkali-Silicatglas - Teil 2: Konformitätsbewertung/ProduktnormTa slovenski standard je istoveten z:EN 14178-2:2004SIST EN 14178-2:2005en81.040.20ICS:SLOVENSKI
STANDARDSIST EN 14178-2:200501-marec-2005

EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14178-2October 2004ICS 81.040.20English versionGlass in building - Basic alkaline earth silicate glass products -Part 2: Evaluation of conformity/Product standardVerre dans la construction - Produits verriers de silicatealcalinoterreux de base - Partie 2: Evaluation de laconformitéGlas im Bauwesen - Basiserzeugnisse aus Erdalkali-Silicatglas - 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 14178-2:2004: E

Factory production control.16 A.1 Factory Production Control Requirements.16 A.1.1 General.16 A.1.2 Organisation.16 A.1.3 Control system.16 A.2 Marking.17 A.3 Inspection and testing tables of alkaline earth silicate glass products production.17 A.3.1 Information on Table A.1.17 A.3.2 Use of proxy testing.18 Annex°B (informative)
Provisions for voluntary involvement of third party(ies).21 B.1 General.21 B.2 Voluntary tasks for third parties.21 B.3 Marking and labelling.21 Annex ZA (informative)
Clauses of this European Standard addressing the provisions of EU Construction Products Directive.22 ZA.1 Scope and relevant characteristics.22 ZA.2 Procedure(s) for the attestation of conformity of basic alkaline earth silicate glass products.24

which is an integral part of this document. 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. No existing document is superseded. This part of the document does not stand-alone, it is a part of one document: EN 14178-1: Glass in building – Basic alkaline earth silicate glass products – Part 1: Float glass EN14178-2: Glass in building – Basic alkaline earth silicate glass products- 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 basic alkaline earth silicate glass products 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 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 ENV 1187, Test methods for external fire exposure to roofs 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 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
data from fire exposure roof tests EN 13541, Glass in building - Security glazing - Testing and classification of resistance against explosion pressure EN 14178-1:2004, Glass in building – Basic alkaline earth silicate glass products – Part 1: Float glass

Characteristic
Symbol
Unit Generally accepted values: - - 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
ρ HK0,1/20 E µ fg,k
c α λ n ε
kg/m³ GPa Pa Dimensionless Pa K
J/(kg.K) K-1 W/(m.K) Dimensionless Dimensionless
Measured values: - light transmittance - solar direct transmittance
τv τe
Dimensionless Dimensionless Calculated values: - total solar energy transmittance
g
Dimensionless
4.2.2 Characteristics of basic alkaline earth silicate glass products If the basic earth alkaline silicate 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.
4.2.2.1 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. 4.2.2.2 Safety in the case of fire - Reaction to fire Reaction to fire shall be determined and classified in accordance with EN 13501-1. Basic alkaline earth 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)

The manufactured or supplied thickness of alkaline earth silicate glass shall conform to the ordered thickness. 4.2.2.10 Protection against noise - Direct airborne sound reduction The sound reduction indexes shall be determined in accordance with EN 12758.
4.2.2.11 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: : using the value of the emissivity as given in EN 14178-1.  nominal thickness of the glass panes

4.2.2.13 Energy conservation and heat retention - Radiation properties: Solar energy characteristics The solar energy transmittance and reflectance shall be determined in accordance with EN 410.
4.3 Durability When products conform to the definition of basic alkaline earth silicate glass products as in 4.1, the characteristics’ performances in 4.2 are ensured during an economically reasonable working life. The durability of glass products, including their characteristics, shall be ensured by the following:  Compliance with this document  Compliance with instructions from the glass product manufacturer or supplier
The manufacturer shall supply specific installation instructions or make reference to appropriate technical specifications. 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. 4.4 Characteristics other than those listed in 4.2 Optical and visual characteristics shall comply with EN 14178-1. Dimensional tolerances shall comply with EN 14178-1. 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

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 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.

Table 2: Product aspects to be checked if product belongs to group alkaline earth silicate glass
Nr
Product aspect 1 Chemical composition 2 Thickness 3 Light transmittance (distinction clear glass from tinted glass)
1 The terms ‘manufacturer’ and ‘producer’ are understood as being synonyms (see CPD working document NB-CPD/02/019-issued 24 April 2002 – page1)

5.2.3 Initial type testing of characteristic’s performances
All characteristics in 4.2 shall be subject to initial type tests in accordance with Clause 5.2.1. 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 9001:2000 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.

Nr
Characteristic
Interested parameter related to the characteristic
For details, refer to
a
Resistance to fire Reaction to fire External fire behaviour
- checking incoming materials - chemical composition - product control after manufacture - labelling outgoing product
Annex A
b
Release of dangerous substances
- checking incoming materials
Annex A
c
Bullet resistance Explosion resistance Burglar resistance Pendulum body impact resistance Resistance against sudden temperature changes and temperature differentials Wind, snow, permanent and imposed load resistance of the glass unit
- checking incoming materials - chemical composition - product control after manufacture - labelling outgoing product
Annex A
d
Direct airborne sound reduction Thermal properties Radiation properties: – light transmittance and reflection – solar energy characteristic
- checking incoming materials - chemical composition - product control after manufacture - labelling outgoing product
Annex A
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). 5.5 Continuous surveillance and assessment of the factory production control (see 5.1, 1c) The continuous surveillance and assessment of the factory production control shall cover the parameters listed in Table 3 in conjunction with Annex A.
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