kSIST prEN 13024-2:2018
(Main)Glass in building - Thermally toughened borosilicate safety glass - Part 2: Product standard
Glass in building - Thermally toughened borosilicate safety glass - Part 2: Product standard
This document covers the assessment and verification of constancy of performances and the factory production control of flat thermally toughened borosilicate safety 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.
Glas im Bauwesen - Thermisch vorgespanntes Borosilicat-Einscheibensicherheitsglas - Teil 2: Produktnorm
Dieses Dokument umfasst die Bewertung und Überprüfung der Leistungsbeständigkeit und die werkseigene Produktionskontrolle von flachem thermisch vorgespanntem Borosilicat-Sicherheitsglas zur Verwendung in Gebäuden.
ANMERKUNG Für Glaserzeugnisse mit elektrischer Verkabelung oder Anschlüssen, wie z. B. Alarm- oder Heizungs-anwendungen, können andere Richtlinien, z. B. die Niederspannungsrichtlinie, gelten.
Verre dans la construction - Verre borosilicate de sécurité trempé thermiquement - Partie 2: Norme de produit
La présente Norme européenne couvre l’évaluation et la vérification de la constance des performances et le contrôle de la production en usine du verre plat borosilicate de sécurité trempé thermiquement, destiné à être utilisé dans la construction.
NOTE Pour les produits verriers équipés d’un câblage ou de branchements électriques, par exemple pour les alarmes ou le chauffage, d’autres directives, notamment la Directive Basse tension, peuvent s’appliquer.
Steklo v gradbeništvu - Kaljeno borosilikatno varnostno steklo - 2. del: Standard za proizvod
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN 13024-2:2018
01-april-2018
Steklo v stavbah - Toplotno kaljeno borosilikatno varnostno steklo - 2. del:
Standard za izdelek
Glass in building - Thermally toughened borosilicate safety glass - Part 2: Product
standard
Glas im Bauwesen - Thermisch vorgespanntes Borosilicat-Einscheibensicherheitsglas -
Teil 2: Produktnorm
Verre dans la construction - Verre borosilicate de sécurité trempé thermiquement - Partie
2: Norme de produit
Ta slovenski standard je istoveten z: prEN 13024-2
ICS:
81.040.20 Steklo v gradbeništvu Glass in building
oSIST prEN 13024-2:2018 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 13024-2:2018
DRAFT
EUROPEAN STANDARD
prEN 13024-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2018
ICS 81.040.20 Will supersede EN 13024-2:2004
English Version
Glass in building - Thermally toughened borosilicate safety
glass - Part 2: Product standard
Verre dans la construction - Verre borosilicate de Glas im Bauwesen - Thermisch vorgespanntes
sécurité trempé thermiquement - Partie 2: Norme de Borosilicat-Einscheiben-Sicherheitsglas - Teil 2:
produit 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-CENELEC
Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey 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
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 13024-2:2018 E
worldwide for CEN national Members.
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Contents Page
European foreword . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Requirements . 7
4.1 Product description . 7
4.2 Determination of the characteristic’s performances . 8
4.2.1 Characteristics of thermally toughened borosilicate safety glass . 8
4.2.2 Determination of characteristics of thermally toughened borosilicate safety glass . 8
4.3 Characteristics other than listed in 4.2 . 12
5 Assessment and verification of constancy of performance – AVCP . 12
5.1 General. 12
5.2 Determination of the product type (see 5.1, 1)) . 13
5.2.1 General. 13
5.2.2 Type testing of characteristic’s performances . 13
5.2.3 Test reports . 14
5.2.4 Multiple lines/sites . 14
5.3 Factory production control (FPC) . 14
5.3.1 General. 14
5.3.2 Inspection of samples in accordance with a prescribed test plan (see 5.1, 2a)) . 14
5.4 Initial inspection of factory and of factory production control (see 5.1, 2b)) . 15
5.5 Continuous surveillance and assessment of the factory production control (5.1, 2c)) . 16
5.6 Procedure for modifications . 17
5.7 Pre-production products (e.g. prototypes) . 17
6 Marking and/or labelling . 17
6.1 General. 17
6.2 Product marking . 17
Annex A (normative) Factory production control . 18
A.1 Factory production control requirements. 18
A.1.1 General. 18
A.1.2 Organization . 18
A.1.3 Control system . 18
A.1.4 Equipment . 19
A.1.5 Non-complying materials / products . 19
A.2 Inspection and testing table of thermally toughened borosilicate safety glass
production . 20
A.2.1 Information on Table A.1 . 20
A.2.2 Use of proxy testing . 20
Annex B (informative) Tests for factory production control . 23
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B.1 Strength measurement . 23
B.1.1 Four point bending strength test . 23
B.1.2 Optical surface pre-stress measurement . 23
B.2 Fragmentation test . 24
B.2.1 Requirements . 24
B.2.2 Test method . 24
Annex C (normative) Type testing of spectrophotometric and energy characteristics . 25
C.1 Sampling . 25
C.1.1 General . 25
C.1.2 Sample specification . 25
C.2 Measurement of spectrophotometric and energy characteristics . 25
C.3 Tolerances on spectrophotometric characteristics . 26
Annex D (normative) Type testing and sampling for mechanical strength, fragmentation and
pendulum body impact tests . 27
D.1 General . 27
D.2 Test specimens . 27
D.3 Test results. 29
D.4 Measurement of surface pre-stress. 29
D.5 Pendulum body impact resistance test on thermally toughened borosilicate safety
glass . 29
Annex E (informative) Provisions for voluntary involvement of third party(ies) . 31
E.1 General . 31
E.2 Voluntary tasks for third parties . 31
E.3 Marking and labelling . 31
Annex ZA (informative) Relationship of this European Standard with Regulation (EU) No.
305/2011 . 32
Bibliography . 36
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European foreword
This document (prEN 13024-2:2018) 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 will supersede EN 13024-2:2004.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports basic work requirements of EU Regulation and
essential requirements of EU Directive(s).
For relationship with EU Regulation/Directive(s), see informative Annex ZA, which is an integral part of
this document.
In comparison with the previous edition, the following technical modifications have been made:
a) The standard has been revised to fulfil the requirements of the Regulation (EU) No 305/2011
(Construction Product Regulation), modified by Regulations (EU) No 157/2014, (EU) No 568/2014
and (EU) No 574/2014.
b) The solar factor, g, is listed within the spectrophotometric characteristics to be declared in the
Declaration of Performances (DoP).
c) The durability/conformity assessment is listed within the characteristics to be declared in the DoP.
d) The mechanical resistance shall be given in the DoP by the characteristic bending strength.
This document is part of the standard series EN 13024 consisting of:
— EN 13024-1, Glass in building — Thermally toughened borosilicate safety glass — Part 1: Definition
and description;
— EN 13024-2, Glass in building — Thermally toughened borosilicate safety glass — Part 2: Product
standard.
This document contains other aspects of importance for trade.
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1 Scope
This document covers the assessment and verification of constancy of performances and the factory
production control of flat thermally toughened borosilicate safety 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 documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 1096-1, Glass in building — Coated glass — Part 1: Definitions and classification
EN 1096-2:2012, Glass in building — Coated glass — Part 2: Requirements and test methods for class A, B
and S coatings
EN 1096-3:2012, Glass in building — Coated glass — Part 3: Requirements and test methods for class C
and D coatings
EN 12600, Glass in building — Pendulum test — Impact test method and classification for flat glass
EN 12758, Glass in building — Glazing and airborne sound insulation — Product descriptions and
determination of properties
EN 12898, Glass in building — Determination of the emissivity
prEN 13024-1:2018, Glass in building — Thermally toughened borosilicate safety glass — Part 1:
Definition and description
EN 13501-1, Fire classification of construction products and building element — 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
EN 13501-5, Fire classification of construction products and building elements — Part 5: Classification
using data from external fire exposure to roofs tests
EN 13541, Glass in building — Security glazing — Testing and classification of resistance against
explosion pressure
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EN 15998, Glass in building — Safety in case of fire, fire resistance — Glass testing methodology for the
purpose of classification
ISO 9385, Glass and glass-ceramics — Knoop hardness test
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 13024-1 and the following
apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
3.1
factory production control
FPC
documented, permanent and internal control of production in a factory, in accordance with this
standard
Note 1 to entry: See also Annexes A and B.
3.2
product-type
set of representative performance levels or classes of a construction product, in relation to its essential
characteristics, produced using a given combination of raw materials or other elements in a specific
production process
3.3
essential characteristic
characteristic of the construction product which relate to the basic requirements for construction
works
Note 1 to entry: Basic requirements for construction work are given in the regulation (EU) No 305/2011, Annex I.
3.4
performance of a construction product
performance related to the relevant essential characteristics, expressed by level or class, or in a
description
3.5
level
result of the assessment of the performance of a construction product in relation to its essential
characteristics, expressed as a numerical value
3.6
class
range of levels, delimited by a minimum and a maximum value, of performance of a construction
product
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3.7
type testing
TT
determination of the performance of a product (characteristic, durability), on the basis of either actual
tests or other procedures (such as conventional, standardized, tabulated or general accepted values,
standardized or recognized calculation methods, test reports when made available, …), in accordance
with this European standard and that demonstrates compliance with this European standard
3.8
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
3.9
product description
document that details the relevant parameters, e. g. process conditions, structure, etc., for defining a
product that complies with the standard and that includes specific reference(s) to characteristics that
are modified by the production process
3.10
product family
group of products determined by the manufacturer, which is made with similar components and
processes and which is tested for FPC using the same test method
3.11
significant change
variation in performance beyond the permitted tolerance for the characteristic
4 Requirements
4.1 Product description
For conformity purposes, the thermally toughened borosilicate safety glass manufacturer is responsible
for the preparation and maintenance of a product description. This description shall describe the
product and/or product family.
Disclosure of the product description shall be at the discretion of the thermally toughened borosilicate
safety glass manufacturer or his agent except in the case of regulatory requirements.
The product description shall contain at least the following:
— a reference to EN 13024-1 and EN 13024-2 and all other standards with which the manufacturer
claims compliance;
— the spectrophotometric properties and durability of coated glass, i.e. coated glass that conforms
with EN 1096-1, EN 1096-2, EN 1096-3, when those properties are changed, intentionally or
unintentionally, by the thermal toughening process.
The definition of product families shall be consistent with the 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.
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4.2 Determination of the characteristic’s performances
4.2.1 Characteristics of thermally toughened borosilicate safety glass
4.2.1.1 General
The characteristics of thermally toughened borosilicate safety glass, listed in Table 1, are in general
those of the glass substrate and can be found in the appropriate product standard (see 4.2.1.2). Since
they are not changed significantly by the thermal toughening process, they shall be used for thermally
toughened borosilicate safety glass. The exceptions shall be the characteristic bending strength (f )
g,k
and the resistance against sudden temperature changes and temperature differentials.
For glass substrates covered by Harmonized European specifications, generally accepted values,
declared values, or calculated values of the characteristics listed in Table 1 shall be used.
If glass panes are used which are not covered by Harmonized European specifications (as defined in
regulation EU305/2011), it shall be demonstrated that those glasses have a chemical composition and
mechanical stability over time equivalent to the requirements of the relevant standard listed.
Table 1 —Characteristics of glass substrates
Characteristic Symbol Unit
3
Density ρ
kg/m
HK
Hardness (Knoop hardness in accordance with ISO 9385) Dimensionless
0,1/20
Young's modulus E GPa
Poisson's ratio μ Dimensionless
f
Characteristic bending strength MPa
g,k
Resistance against sudden temperature changes and temperature
- K
differentials
Specific heat capacity c J/(kg·K)
α -1
Coefficient of linear expansion
ll K
Thermal conductivity λ W/(m·K)
Mean refractive index to visible radiation n Dimensionless
4.2.1.2 Glass panes used as substrates for the production of thermally toughened borosilicate
safety glass
The glass substrates listed in prEN 13024-1:2018, Clause 4, may be used for the production of thermally
toughened borosilicate safety glass.
4.2.2 Determination of characteristics of thermally toughened borosilicate safety glass
4.2.2.1 General
If the thermally toughened borosilicate safety 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.
4.2.2.2 Safety in the case of fire - Resistance to fire
Fire resistance shall be determined and classified in accordance with EN 13501-2.
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The testing methodology specified in EN 15998 shall be used for glass products that are claiming fire
resistance.
4.2.2.3 Safety in the case of fire - Reaction to fire
Reaction to fire shall be determined and classified in accordance with EN 13501-1.
Thermally toughened borosilicate safety glass is a product / material that does 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).
4.2.2.4 Safety in the case of fire - External fire performances (for roof coverings only)
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.
4.2.2.5 Safety in use - Bullet resistance: shatter properties and resistance to attack
Bullet resistance shall be determined and classified in accordance with EN 1063.
4.2.2.6 Safety in use - Explosion resistance: impact behaviour and resistance to impact
Explosion resistance shall be determined and classified in accordance with EN 13541.
4.2.2.7 Safety in use - Burglar resistance: shatter properties and resistance to attack
Burglar resistance shall be determined and classified in accordance with EN 356.
4.2.2.8 Safety in use - Pendulum body impact resistance: shatter properties (safe breakability)
and resistance to impact
Pendulum body impact resistance shall be determined and classified in accordance with EN 12600 and
with Annex D, D.5.
4.2.2.9 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 EN 13024-1 and shall be ensured by compliance with this standard.
4.2.2.10 Safety in use - Mechanical resistance: Resistance against wind, snow, permanent load
and/or imposed loads of the glass unit
The mechanical resistance of thermally toughened borosilicate safety glass is a characteristic value that
shall be ensured by compliance with this document.
The value to be declared is the characteristic bending strength of glass, as defined in
prEN 13024-1:2018, Table 8.
4.2.2.11 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 thermal toughening process does not
alter the values.
The values to be declared shall be rounded down to the nearest whole number.
4.2.2.12 Energy conservation and heat retention - Thermal properties
The thermal transmittance value (U-value) shall be determined in accordance with the following
procedure:
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a) The normal emissivity ε shall be the declared value of the glass component manufacturer, whether
or not the glass is coated. The declared value shall be the one of the toughened state.
1) If the values are not altered by the toughening process, a new type test is not necessary.
2) In the case of values supplied by the manufacturer of the coated glass, toughenable or to be
toughened, these values can be accepted if the toughening process has been undertaken in
accordance with the instructions from the coated glass supplier.
b) In the case of thermally toughened coated glasses, if the information is not available, the normal
emissivity shall be determined in accordance with EN 12898 and Annex C of this standard. The test
specimen for measurement shall be prepared in accordance with EN 1096-2:2012, Annex A or
EN 1096-3:2012, Annex A.
c) The U-value shall be determined by calculation in accordance with EN 673, using the normal
emissivity as defined above and the nominal thickness of the glass pane.
4.2.2.13 Energy conservation and heat retention - Radiation properties: Light transmittance and
reflectance
The light transmittance and light reflectance shall be determined in accordance with the following
procedure:
a) The light transmittance and light reflectance shall be the declared value of the glass component
manufacturer, whether or not the glass is coated. The declared value shall be the one of the
toughened state.
1) If the values are not altered by the toughening process, a new type test is not necessary.
2) In the case of values supplied by the manufacturer of the coated glass, toughenable or to be
toughened, these values can be accepted if the toughening process has been undertaken in
accordance with the instructions from the coated glass supplier.
b) In the case of thermally toughened coated glasses, if the information is not available, the light
transmittance and light reflectance shall be determined in accordance with EN 410 and Annex C of
this standard, for one thickness. The test specimen for measurement shall be prepared in
accordance with EN 1096-2:2012, Annex A or EN 1096-3:2012, Annex A.
c) The light transmittance and the light reflectance of any other thickness shall be calculated
according to EN 410.
d) The tool used to calculate the light transmittance and the light reflectance shall be validated.
The tolerances on the calculated light transmittance and light reflectance are given in Annex C.
4.2.2.14 Energy conservation and heat retention - Radiation properties: Solar energy
characteristic
...
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