prEN 15681-2

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

This European Standard covers the evaluation of conformity and the factory production control of basic alumino 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 Alumo-Silicatglas - Teil 2: Konformitätsbewertung/Produktnorm

Verre dans la construction - Produits de base verre alumino silicaté - Partie 2 : Evaluation de la conformité/Norme de produit

La présente Norme européenne couvre l'évaluation de la conformité et le contrôle de la production en usine pour les produits verriers alumino-silicatés de base en usage 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 telles que la Directive sur les Courants Faibles peuvent s’appliquer.

Steklo v gradbeništvu - Osnovni izdelki iz aluminij-silikatnega stekla - 2. del: Ovrednotenje skladnosti/standard za izdelek

General Information

• Status: Not Published
• 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: 4098 - Decision to abandon - Enquiry
• Start Date: 03-Jun-2009
• Completion Date: 03-Jun-2009
• 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: oSIST prEN 15681-2:2007 - Glass in building - Basic alumino silicate glass products - Part 2: Evaluation of conformity/Product standard

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN 15681-2:2007
01-julij-2007
Steklo v gradbeništvu - Osnovni izdelki iz aluminij-silikatnega stekla - 2. del:
Ovrednotenje skladnosti/standard za izdelek
Glass in building - Basic alumino silicate glass products - Part 2: Evaluation of
conformity/Product standard
Glas im Bauwesen - Basiserzeugnisse aus Alumo-Silicatglas - Teil 2:
Konformitätsbewertung/Produktnorm
Verre dans la construction - Produits de base verre alumino silicaté - Partie 2 :
Evaluation de la conformité/Norme de produit
Ta slovenski standard je istoveten z: prEN 15681-2
ICS:
81.040.20 Steklo v gradbeništvu Glass in building
oSIST prEN 15681-2:2007 en;de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
EUROPEAN STANDARD
DRAFT
prEN 15681-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2007
ICS 81.040.20

English Version
Glass in building - Basic alumino silicate glass products - Part 2:
Evaluation of conformity/Product standard
Glas im Bauwesen - Basiserzeugnisse aus Alumo-
Silicatglas - Teil 2: Konformitätsbewertung/Produktnorm
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 129.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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 CEN Management Centre has the
same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2007 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 15681-2:2007: E
worldwide for CEN national Members.

---------------------- Page: 2 ----------------------
prEN 15681-2:2007 (E)
Contents Page
Foreword. 4
Scope . 5
1 Normative references . 5
2 Terms and definitions. 6
3 Requirements . 6
3.1 Conformity with the definition of basic alumino silicate glass products . 6
3.2 Determination of the characteristic's performances. 6
3.2.1 Characteristics of basic alumino silicate glasses . 6
3.2.2 Characteristics of basic alumino silicate glass products. 7
3.3 Durability. 9
3.4 Characteristics other than listed in 4.2. 10
3.5 Dangerous substances. 10
4 Evaluation of conformity. 10
4.1 General. 10
4.2 Initial type testing of the product (see 5.1, 2). 10
4.2.1 General. 10
4.2.2 Initial type testing if the product belongs to the group basic alumino silicate
glasses, clear or tinted . 12
4.2.3 Initial type testing of characteristic's performances. 12
4.3 Factory production control and inspection of samples in accordance with a
prescribed test plan (see 5.1, 1a) . 12
4.4 Initial inspection of factory and of factory production control (see 5.1, 1b) . 13
4.5 Continuous surveillance and assessment of the factory production control (5.1,
1c) . 13
5 Marking and labelling . 14
5.1 General. 14
5.2 Product marking. 14
5.3 Product characteristics . 14
5.4 “Characteristics/performance identification paper” . 14
Annex A (normative) Factory Production Control . 15
A.1 Factory Production Control Requirements . 15
A.1.1 General. 15
A.1.2 Organisation . 15
A.1.3 Control system . 15
A.2 Marking . 16
A.3 Inspection and testing tables of basic alumino silicate glass products production. 17
A.3.1 Information to the tables A.1 to A3 . 17
A.3.2 Use of proxy testing. 17
Annex B (informative) Provisions for voluntary 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 Directives. 22
2

---------------------- Page: 3 ----------------------
prEN 15681-2:2007 (E)
ZA.1 Scope and relevant characteristics. 22
ZA.2 Procedure(s) for the attestation of conformity of basic alumino silicate glass
products. 24
ZA.2.1 System(s) of attestation of conformity . 24
ZA.2.2 EC Certificate and Declaration of conformity . 26
ZA.3 CE marking and labelling . 28
Bibliography . 30

3

---------------------- Page: 4 ----------------------
prEN 15681-2:2007 (E)
Foreword
This document (prEN 15681-2:2007) has been prepared by Technical Committee CEN/TC 129 “Glass
in building”, the secretariat of which is held by NBN.
This document is currently submitted to the CEN Enquiry.
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.
4

---------------------- Page: 5 ----------------------
prEN 15681-2:2007 (E)
Scope
This European Standard covers the evaluation of conformity and the factory production control of
basic alumino 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.
1 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
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 fire 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
EN 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
prEN 15681-1, Glass in Building – Basic alumino silicate glass products – Part 1: Definitions and
general physical and mechanical properties
5

---------------------- Page: 6 ----------------------
prEN 15681-2:2007 (E)
2 Terms and definitions
For the purposes of this document, the terms and definitions given in prEN BAluS-1 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 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.
3 Requirements
3.1 Conformity with the definition of basic alumino silicate glass products
Products shall conform to the definition and fulfil the requirements of basic alumino silicate glass
products as defined in prEN 15681-1.
3.2 Determination of the characteristic's performances
3.2.1 Characteristics of basic alumino silicate glasses
Basic alumino silicate glass products are made in accordance with prEN 15681-1. The characteristics
listed in table 1, concern generally accepted values, calculated values or measured values.
6

---------------------- Page: 7 ----------------------
prEN 15681-2:2007 (E)
Table 1 — Necessary information on characteristics of basic alumino silicate glasses
Characteristic Symbol Unit
General accepted values:
- density ρ kg/m³
- hardness HK GPa
0,1/20
- Young's modulus E Pa
- Poisson's ratio µ Dimensionless
ƒ
- characteristic bending strength Pa
g,k
- resistance against sudden temperature changes and temperature K

differentials

- specific heat capacity J/(kg*K)
c
-1
- coefficient of linear expansion K
α
- thermal conductivity W/(m*K)
λ
- mean refractive index to visible radiation Dimensionless
n
- emissivity Dimensionless
ε
Measured values:
- light transmittance τ Dimensionless
ν
- solar direct transmittance Dimensionless
τ
e
Calculated values:
- total solar energy transmittance g Dimensionless

3.2.2 Characteristics of basic alumino silicate glass products
If the basic alumino 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.
3.2.2.1 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.
3.2.2.2 Safety in the case of fire - Reaction to fire
Reaction to fire shall be determined and classified according to EN 13501-1.
Basic alumino 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).
7

---------------------- Page: 8 ----------------------
prEN 15681-2:2007 (E)
3.2.2.3 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 EN 13501-5.
3.2.2.4 Safety in use - Bullet resistance: shatter properties and resistance to attack
Bullet resistance shall be determined and classified in accordance with EN 1063.
3.2.2.5 Safety in use - Explosion resistance: impact behaviour and resistance to impact
Explosion resistance shall be determined and classified in accordance with EN 13541.
3.2.2.6 Safety in use - Burglar resistance: shatter properties and resistance to attack
Burglar resistance shall be determined and classified in accordance with EN 356.
3.2.2.7 Safety in use - Pendulum body impact resistance: shatter properties (safe
breakability) and resistance to impact
Pendulum body impact resistance shall be determined and classified in accordance with EN 12600.
3.2.2.8 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 prEN 15681-1 and shall be ensured by compliance with this document.
3.2.2.9 Safety in use - Mechanical resistance: Resistance against wind, snow, permanent
load and/or imposed loads of the glass unit
The mechanical resistance of basic alumino silicate glass is a characteristic value that is given in
prEN BAluS-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 glass shall conform to the ordered thickness.
3.2.2.10 Protection against noise - Direct airborne sound reduction
The sound reduction index shall be determined in accordance with EN 12758.
8

---------------------- Page: 9 ----------------------
prEN 15681-2:2007 (E)
3.2.2.11 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 the emissivity as given in prEN 15681-1.
 nominal thickness of the glass panes
3.2.2.12 Energy conservation and heat retention - Radiation properties: Light
transmittance and reflectance
The light transmittance and reflectance shall be determined in accordance with EN 410.
3.2.2.13 Energy conservation and heat retention - Radiation properties: Solar energy
characteristics
The solar energy transmittance and reflectance shall be determined in accordance with EN 410.
3.3 Durability
When products conform to the definition of basic alumino silicate glass products as 4.1, the
characteristic's 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 1: 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.
9

---------------------- Page: 10 ----------------------
prEN 15681-2:2007 (E)
3.4 Characteristics other than listed in 4.2
Optical and visual characteristics shall comply with prEN 15681-1.
Dimensional tolerances: shall comply with prEN 15681-1.
3.5 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.
4 Evaluation of conformity
4.1 General
Evaluation of conformity in accordance with this document shall be a result of Factory Production
Control and Initial Type Testing 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).
4.2 Initial type testing of the product (see 5.1, 2)
4.2.1 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 the Clause 2 referenced
standards, or in publications that are referred to in these standards;
 standardised calculation methods and recognised calculation methods in the 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
10

---------------------- Page: 11 ----------------------
prEN 15681-2:2007 (E)
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;

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.

4.2.1.1 Multiple lines/sites
If a manufacturer operates more than one line and/or site, the following can reduce the requirement
for multiple Initial Type Testing (ITT):

i) The manufacturers’ technical file for a product shall specifically covers all sites and/or
1
lines of the same manufacturer ,
ii) The manufacturer shall establish a direct relationship between production control, initial
type testing and on-going internal audit testing,
iii) The manufacturer has a responsible individual designated to ensure product compliance
based on:
 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.

1 The terms ‘manufacturer’ and ‘producer’ are understood as being synonyms (see CPD working document
NBCPD/ 02/019-issued 24 April 2002 – page1)
11

---------------------- Page: 12 ----------------------
prEN 15681-2:2007 (E)
4.2.1.2 Historic Data
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.
4.2.2 Initial type testing if the product belongs to the group basic alumino silicate glasses,
clear or tinted
Initial type testing to establish if a product conforms to the definition of basic alumino silicate glass,
may be economised as much as possible. For that purpose appropriate available test reports in
accordance with 5.2.1.2 are equivalent to actual testing and may be used instead of actual testing.
The initial type testing concerns the product aspects as listed in table 2.
Table 2 — Product aspects to be checked if product belongs to group basic alumino silicate
glasses
No. Product aspect
1 Chemical composition
2 Thickness
3 Light transmittance (distinction clear glass from tinted glass)

4.2.3 Initial type testing of characteristic's performances
All characteristics in 4.2.2 shall be subject to initial type testing in accordance with 5.2.1.
4.3 Factory production control and inspection of samples in accordance with a
prescribed test plan (see 5.1, 1a)
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 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 to 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.
12

---------------------- Page: 13 ----------------------
prEN 15681-2:2007 (E)
4.4 Initial inspection of factory and of factory production control (see 5.1, 1b)
The initial inspection of the factory and of the factory production control shall be limited to 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).
Table 3 — Characteristics of interest for the Factory Production Control
No. Characteristic Interested parameter related to the For details,
characteristic refer to
a Resistance to fire - checking incoming materials Annex A
Reaction to fire - chemical composition
External fire behavior - product control after manufacture
- labelling outgoing glass product
b Release of dangerous substances - checking incoming materials Annex A
c Bullet resistance - checking incoming materials Annex A
Explosion resistance - chemical composition
Burglar resistance - product control after manufacturing
Pendulum body impact resistance - labelling outgoing glass product
Resistance against sudden temperature
changes and temperature differentials
Wind, snow, permanent and imposed load
resistance of the glass unit
d Direct airborne sound reduction - checking incoming materials Annex A
Thermal properties - chemical composition
Radiation properties: - product control after manufacture
– light transmittance and reflection
- labelling outgoing glass product
– solar energy characteristic

4.5 Continuous surveillance and assessment of the factory production control (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.
Note: There may be a need to involve a third party for the purpose of regulatory marking (see Annex ZA).
The frequency of production surveillance shall be twice per year for new production facilities or for
facilities that do not already have an established factory production control system in accordance with
this document.
When assessment of FPC fails to identify major non-conformances during four successive
assessments, the frequency can be reduced to once a year.
When a major non-conformance is recorded, the inspection shall be repeated
...