prEN 1096-4

SLOVENSKI STANDARD
01-marec-2012
Steklo v gradbeništvu – Steklo z nanosi – 4. del: Ovrednotenje skladnosti/standard
za izdelek
Glass in building - Coated glass - Part 4: Evaluation of conformity / Product standard
Glas im Bauwesen - Beschichtetes Glas - Teil 4: Konformitätsbewertung / Produktnorm
Verre dans la construction - Verre à couche - Partie 4: Évaluation de la conformité /
Norme de produit
Ta slovenski standard je istoveten z: prEN 1096-4
ICS:
81.040.20 Steklo v gradbeništvu Glass in building
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
DRAFT
NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2012
ICS 81.040.20 Will supersede EN 1096-4:2004
English Version
Glass in building - Coated glass - Part 4: Evaluation of
conformity / Product standard
Verre dans la construction - Verre à couche - Partie 4: Glas im Bauwesen - Beschichtetes Glas - Teil 4:
Évaluation de la conformité / Norme de produit 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-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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, 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

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2012 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1096-4:2012: E
worldwide for CEN national Members.

Contents Page
Foreword . 4
1 Scope. 5
2 Normative references . 5
3 Terms, definitions and symbols . 6
3.1 Terms and definitions . 6
3.2 Symbols . 7
4 Requirements . 7
4.1 Product description . 7
4.2 Conformity with the definition of coated glass . 8
4.3 Determination of the characteristic’s performances . 8
4.3.1 Characteristic of coated glass . 8
4.3.2 Determination of characteristics of coated glass . 11
4.4 Durability . 13
4.5 Dangerous substances. 13
5 Evaluation of conformity . 13
5.1 General . 13
5.2 Initial type testing of the product (see 5.1, 2) . 14
5.2.1 General . 14
5.2.2 Initial type testing of coated glass . 15
5.2.3 Initial type testing of characteristic’s performances . 16
5.3 Factory production control and inspection of samples in accordance with a
prescribed test plan (see 5.1, 1a and b) . 16
5.4 Initial inspection of factory and of factory production control (see 5.1, 1c) . 17
5.5 Continuous surveillance and assessment of the factory production control (see
5.1, 1c) . 18
6 Marking and/or labelling . 18
6.1 General . 18
6.2 Product marking . 18
6.3 Product characteristics . 19
6.4 “Characteristics/performance identification paper” . 19
7 Initial type testing; sampling and measurement of photometric and energy
characteristics . 19
7.1 Sampling . 19
7.1.1 General . 19
7.1.2 Sample specification . 19
7.2 Measurement of photometric and energy characteristics . 20
Annex A (normative) Factory production control . 21
A.1 Factory Production Control Requirements . 21
A.1.1 General . 21
A.1.2 Organisation . 21
A.1.3 Control system . 21
A.2 Marking . 22
A.3 Inspection and testing tables of coated glass product production . 22
A.3.1 Information on Tables A.1 and A.2 . 22
A.3.2 Comments specific to Table A.1 . 23
A.3.3 Comments specific to Table A.2 . 24
A.3.4 Use of proxy testing . 24
Annex B (informative) Tests for factory production control . 29
B.1 General . 29
B.2 Radiometric properties . 29
B.2.1 Sampling . 29
B.2.2 Measurements . 30
B.3 Information on ensuring durability conformity . 30
Annex C (informative) Provisions for voluntary involvement of third party(ies) . 31
C.1 General . 31
C.2 Voluntary tasks for third parties . 31
C.3 Marking and labelling . 31
Annex ZA (informative) Clauses of this European Standard addressing the provisions of
EU Construction Products Directive . 32
ZA.1 Scope and relevant characteristics . 32
ZA.2 Procedure(s) for the attestation of conformity of coated glass products . 34
ZA.2.1 System(s) of attestation of conformity . 34
ZA.2.2 EC Certificate and Declaration of conformity . 36
ZA.3 CE marking and labelling . 38
Bibliography . 41

Foreword
This document (prEN 1096-4:2011) has been prepared by Technical Committee CEN/TC 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.
This document supersedes EN 1096-4:2004.
The main changes compared to the previous edition are:
a) The tolerance on emissivity is reduced to +0,01 for coatings with a declared normal emissivity
lower than 0,10;
b) The solar factor, g, is listed within the spectrophotometric characteristics to be declared.
This part of the document does not stand alone; it is a part of one document:
 EN 1096-1, Glass in building – Coated glass - Part 1: Definitions and classification
 EN 1096-2, Glass in building - Coated glass - Part 2: Requirements and test methods for class A,
B and S coatings
 EN 1096-3, Glass in building - Coated glass - Part 3: Requirements and test methods for class C
and D coatings
 EN 1096-4, Glass in building - Coated glass - Part 4: Evaluation of conformity/Product standard
 EN 1096-5, Glass in building – coated glass – Part 5: Test method and classification for the self-
cleaning performances of coated glass surfaces
This document contains other aspects of importance of trade.
1 Scope
This document covers the evaluation of conformity and the factory production control of coated glass
for use in buildings.
NOTE For glass products with electrical wiring or connections for, e.g. alarm or heating purposes, other
directives, e.g. Low Voltage Directive, may apply.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
EN 356, Glass in building - Security glazing - Testing and classification of resistance against manual
attack
EN 410, Glass in building - Determination of luminous and solar characteristics of glazing
EN 572-1, Glass in building — Basic soda lime silicate glass products - Part 1: Definitions and general
physical and mechanical properties
EN 572-2, Glass in building — Basic soda lime silicate glass products - Part 2: Float glass
EN 572-3, Glass in building — Basic soda lime silicate glass products - Part 3: Polished wired glass
EN 572-4, Glass in building — Basic soda lime silicate glass products - Part 4: Drawn sheet glass
EN 572-5, Glass in building — Basic soda lime silicate glass products - Part 5: Patterned glass
EN 572-6, Glass in building — Basic soda lime silicate glass products - Part 6: Wired patterned glass
EN 572-7, Glass in building — Basic soda lime silicate glass products - Part 7: Wired or unwired
channel shaped glass
EN 673, Glass in building – Determination of thermal transmittance (U value) – Calculation method
EN 1063, Glass in building - Security glazing - Testing and classification of resistance against bullet
attack
EN 1096-1, Glass in building - Coated glass - Part 1: Definitions and classification
EN 1096-2, Glass in building - Coated glass - Part 2: Requirements and test methods for class A, B
and S coatings
EN 1096-3, Glass in building - Coated glass - Part 3: Requirements and test methods for class C and
D coatings
EN 1096-5, Glass in building - Coated glass - Part 5: Test method and classification for the self-
cleaning performances of coated glass surfaces
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 - Glass ceramics – Part 2-1: Definitions and
general physical and mechanical properties
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 ISO 12543-1, Glass in building - Laminated glass and laminated safety glass - Part 1: Definitions
and description of component parts (ISO 12543-1:2011)
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
EN 13024-1, Glass in building – Thermally toughened borosilicate safety glass - Part 1: Definition and
description
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
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
EN 14178-1, Glass in building - Basic alkaline earth silicate glass products - Part 1: Float glass
EN 14179-1, Glass in building – Heat soaked thermally toughened soda lime silicate safety glass –
Part 1 Definition and description
EN 14321-1, Glass in building – Thermally toughened alkaline earth silicate safety glass Part 1:
Definition and description
3 Terms, definitions and symbols
3.1 Terms and definitions
For the purpose of this document, the terms and definitions given in EN 1096-1, 2 and 3 and the
following apply:
3.1.1
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
3.1.2
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
3.1.3
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
3.1.4
significant change
variation in performance beyond the permitted tolerance for the characteristic
3.2 Symbols
ε and ε'  normal emissivity of both sides of a coated glass pane
τ  light transmittance
v
ρ and ρ ' light reflectance of both sides of a coated glass pane
v v
τ  energy transmittance
e
ρ and ρ ' energy reflectance of both sides of a coated glass pane
e e
ε  emissivity of a test specimen measured during factory production control
i
Additional subscripts:
d  indicates that the value is a declared value
m indicates that the value is a determined value obtained by measurement, calculation or
other means
4 Requirements
4.1 Product description
For conformity purposes, the coated 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 coated glass manufacturer or his
agent except in the case of regulatory requirements.
The description shall contain at least a normative part. The description may also contain an
informative part, when the manufacturer foresees further development of the product.

The terms ‘manufacturer’ and ‘producer’ are understood as being synonyms (see CPD working document
NB-CPD/02/019 – issued 24 April 2002 – page 1)
The normative part of the description shall contain the following:
• Reference to EN 1096 Parts 1, 2 and 3 and all other standards with which the manufacturer
claims compliance.
• Type of coating, i.e. on-line, off-line.
• Method of coating deposition, e.g. chemical-vapour deposition, sputtering, etc.
• The materials making up the layer(s) of the coating.
• The order of stacking of the layers.
• Glass substrates.
• Classification of the coated glass.
• Identity card (see EN 1096-1, annex A)
The layers may be listed either in full, i.e. chemical composition, or by a manufacturer's code.
Product families shall be defined in terms of the above normative part of the product description taking
into account the criteria for demonstrating equivalence of coatings (see EN 1096-2, Annex F and EN
1096-3, Annex B).
The substitution of materials and/or components shall maintain the conformity with the product
description. The substituting materials and/or components can be added to the product family and
also the product description when compliance has been demonstrated.
4.2 Conformity with the definition of coated glass
Products shall conform to the manufacturer’s product description and fulfil the definition and
requirements for coated glass as defined in EN 1096-1.
4.3 Determination of the characteristic’s performances
4.3.1 Characteristic of coated glass
4.3.1.1 General
The characteristics of coated glass are in general those of the glass substrate (see 4.3.1.2).
4.3.1.2 Characteristics of the glass panes used as substrates for the production of coated
glass
The following glass substrates may be used for the production of coated glass:
4.3.1.2.1 Basic glasses
These are glass products manufactured from soda lime silicate glass in accordance with EN 572 – 1
and consist of the follows:
• Float glass EN 572 – 2
• Drawn sheet glass EN 572 – 4
• Patterned glass EN 572 – 5
• Wired patterned glass EN 572 – 6
• Wired and unwired channel shaped glass EN 572 – 7
4.3.1.2.2 Special basic glasses
These are glass products manufactured from a variety of compositions, which are in accordance
with appropriate European standards, and consist of the follows:
• Borosilicate glass EN 1748 – 1 – 1
• Glass ceramics EN 1748 – 2 – 1
• Alkaline earth silicate glass EN 14178 – 1
• Alumino silicate glass EN 15681 – 1
4.3.1.2.3 Strengthened glasses
These are soda lime silicate glasses that have been strengthened by thermal or chemical means
and are as follows:
• Heat strengthened EN 1863 – 1
• Chemically strengthened EN 12337 - 1
4.3.1.2.4 Thermally toughened safety glasses
These are glasses that have been toughened by thermal treatment and are as follows:
• Thermally toughened soda lime silicate safety glass EN 12150 – 1
• Thermally toughened borosilicate safety glass EN 13024 – 1
• Heat soaked thermally toughened soda lime silicate safety glass EN 14179 – 1
• Thermally toughened alkaline earth silicate safety glass EN 14321 – 1
• Heat soaked thermally toughened alkaline earth silicate safety glass prEN 15682–1
• Thermally toughened soda lime silicate channel shaped safety glass prEN 15683–1
4.3.1.2.5 Laminated glasses
These are glasses that are in accordance with EN ISO 12543 – 1 and consist of the following:
• Laminated glass EN ISO 12543 – 3
• Laminated safety glass EN ISO 12543 – 2

NOTE Certain coated glasses can be toughened or heat strengthened. These final products should comply
with the appropriate product standard, e.g. EN 12150, EN 1863, etc., and the performance of the coated glass
should be determined on the final product in accordance with EN 1096-2, Annex A or EN 1096-3 Annex A.
The characteristics of the glass substrates are listed in Table 2 and the values can be found in the
appropriate product standard, e.g. EN 572-1, EN 1748-1-1, etc.
For the characteristics listed in Table 2, for the glass pane types, generally accepted values or
calculated values shall be used.
Since the majority of the characteristics of Table 2 are not changed significantly by the coating
process, they shall be used for coated glass. The characteristics being those for the glass substrate
with the following exceptions:
Resistance to fire 4.3.2.1
Emissivity 4.3.2.11
Light transmittance and reflectance 4.3.2.12
Solar energy characteristics 4.3.2.13
Table 2 — Example of characteristics for glass substrates

Characteristic Symbol Unit
Generally accepted values:
- density ρ kg/m³
- hardness GPa
HK
0,1/20
- Young's modulus E Pa
- Poisson's ratio Dimensionless
µ
- Characteristic bending strength Pa
f
g,k
- Resistance against sudden temperature changes and temperature K

differentials
- Specific heat capacity
J/(kg.K)
c
-1
- Coefficient of linear expansion
α K
- Thermal conductivity (for U-value)
λ W/(m.K)
- Mean refractive index to visible radiation
n Dimensionless
- Emissivity
ε Dimensionless
Measured values:
- light transmittance τ Dimensionless
v
- solar direct transmittance
τ Dimensionless
e
Calculated values:
- total solar energy transmittance g Dimensionless

4.3.2 Determination of characteristics of coated glass
If the coated glass manufacturer wishes to claim that any performance characteristic is independent of
the production equipment used then the factory production control system shall be in accordance with
this document including his specific process control conditions.
4.3.2.1 Safety in the case of fire - Resistance to fire
Fire resistance shall be determined and classified in accordance with EN 13501-2.
NOTE EN 357 may be used as a classification reference specific to fire resistant glazed elements.
4.3.2.2 Safety in the case of fire - Reaction to fire
Reaction to fire shall be determined and classified in accordance with EN 13501-1.
4.3.2.3 Safety in the case of fire - External fire behaviour
Where the manufacturer wishes to declare external fire performance (e.g. when subject to regulatory
requirements), the product shall be tested and classified in accordance with EN 13501-5.
4.3.2.4 Safety in use - Bullet resistance: shatter properties and resistance to attack
Bullet resistance shall be determined and classified in accordance with EN 1063.
4.3.2.5 Safety in use - Explosion resistance: impact behaviour and resistance to impact
Explosion resistance shall be determined and classified in accordance with EN 13541.
4.3.2.6 Safety in use - Burglar resistance: shatter properties and resistance to attack
Burglar resistance shall be determined and classified in accordance with EN 356.
4.3.2.7 Safety in use - Pendulum body impact resistance: shatter properties (safe
breakability) and resistance to impact
Pendulum body impact resistance shall be determined and classified in accordance with EN 12600.
4.3.2.8 Safety in use - Mechanical resistance: Resistance against sudden temperature
changes and temperature differentials
The resistance against sudden temperature changes and temperature differentials is a generally
accepted value. That value is given in the standards (see Table 1) for the appropriate glass substrate.
4.3.2.9 Safety in use - Mechanical resistance: Resistance against wind, snow, permanent
load and/or imposed loads of the glass unit
The mechanical resistance is a characteristic value. That value is given in the standards (see Table 1)
for the appropriate glass substrate.
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 coated glass shall conform to the ordered thickness.
4.3.2.10 Protection against noise - Direct airborne sound reduction
The sound reduction indexes shall be determined in accordance with EN 12758. However, the
information supplied with the incoming glass may be used, as the coating process does not alter the
values.
4.3.2.11 Energy conservation and heat retention - Thermal properties
The thermal transmittance value (U-value) shall be determined by calculation in accordance with EN
673 with:
 Normal emissivityε: the declared normal emissivity of the coating manufacturer. If the information
is not available, the normal emissivity shall be determined in accordance with EN 12898.
 nominal thickness of the glass panes
4.3.2.12 Energy conservation and heat retention - Radiation properties: Light transmittance
and reflectance
The light transmittance and reflectance shall be determined in accordance with EN 410. Subject to
5.2.1, the information supplied about the radiation properties of the incoming glass may be used if the
coating process does not alter the values.
4.3.2.13 Energy conservation and heat retention - Radiation properties: Solar energy
characteristics
The solar energy transmittance and reflectance and the solar factor shall be determined in
accordance with EN 410. Subject to 5.2.1, the information supplied about the radiation properties of
the incoming glass may be used if the coating process does not alter the values.
4.4 Durability
When products conform to the definition of coated glass as 4.2 the characteristics’ performances in
4.3.2 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.
4.5 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 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).
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 real 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 5.2.1.2 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 re-assessed providing they remain unchanged by the manufacturing
process;
 release of dangerous substances maybe assessed indirectly by controlling the amount 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 production process (subject to the definition of a
family), which would change significantly one or more of the characteristics, the type tests shall be
repeated for the appropriate characteristic(s).
5.2.1.1 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 cover all sites and/or
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 shall have 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.
5.2.1.2 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.
5.2.2 Initial type testing of coated glass
To establish if a product conforms to the definition of coated glass, initial type testing shall consist of:
 Confirmation of the claimed classification in accordance with EN 1096-2 for class A, B or S
coatings or EN 1096-3 for class C or D coatings;
 Determination of the photometric and energy characteristics, as listed in Table 3, and determined
in accordance with EN 1096-1.
The terms ‘manufacturer’ and ‘producer’ are understood as being synonyms (see CPD working document NB-
CPD/02/019-issued 24 April 2002 – page1)
Table 3 — Information on performances of photometric and energy characteristics
Method of Determined Declared
Determining
Characteristic Value value Requirement
conformity
τ τ τ = τ ±0,03
Light transmittance EN 410 v,m v,d v,m v,d
Light reflectance: EN 410
– first side ρ ρ ρ = ρ ±0,03
v,m v,d v,m v,d
– second side
ρ' ρ' ρ' = ρ' ±0,03
v,m v,d v,m v,d
Energy transmittance EN 410 τ τ τ = τ ±0,03
e e,d e e,d
Energy reflectance EN 410
– first side ρ ρ ρ = ρ ±0,03
e,m e,d e,m e,d
– second side
ρ' ρ' ρ' = ρ' ±0,03
e,m e,d e,m e,d
Solar factor EN 410 g Derived from calculation
d
Emissivity EN 12898
– first side
ε ε ε ≤ ε +0,02 when ε ш 0,10
m d m d d
ε ≤ ε +0,01 when ε < 0,10
m d d
ε' ε'
m d
– second side ε ≤ ε +0,02 when ε ≥ 0,10
m d d
ε ≤ ε +0,01 when ε < 0,10
m d d
The performances of the photometric and energy characteristics shall be determined of both sides of
the coated glass. These may be conventional values, calculated values and/or results of
measurements. Where calculations are applied, whether or not in combination with measurements,
the incoming glass products shall be accompanied by the declared values of the characteristics as
listed in Table 3.
Clause 7 details sampling for initial type testing and method of measurement for photometric and
energy characteristics.
5.2.3 Initial type testing of characteristic’s performances
All characteristics in 4.3 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 made product specific to this document is
deemed to satisfy the requirements of this clause.
NOTE 2 There may be a need to involve a third party for the purpose of regulatory marking (see Annex ZA).
Annex A of this document also summarizes the tests that shall be carried out by the manufacturer as
part of the production control in the factory, and as further testing of samples taken at the factory in
accordance with a prescribed test plan.
5.4 Initial inspection of factory and of factory production control (see 5.1, 1c)
The initial inspection of the factory and of the factory production control shall cover the parameters
listed in Table 4 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 4: Characteristics of interest for the Factory Production Control

Nr Characteristic Interested parameter related to the For details,
characteristic refer to
a Resistance to fire - checking incoming materials Annex A
Reaction to fire - product control after coating process (not
required for reaction to fire)
External fire behaviour
- labelling outgoing glass product

b Release of dangerous substances - checking incoming materials Annex A

c Bullet resistance - checking incoming glass Annex A
Explosion resistance - labelling outgoing glass product
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
d Direct airborne sound reduction - checking incoming glass Annex A
Thermal properties - product control after coating process (not
required for sound reduction)
Radiation properties:
labelling outgoing product
– light transmittance and reflection
– solar energy characteristic
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 4 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 factory production control 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 within two months. The
frequency of production surveillance shall return to, or remain at twice a year. When the repeated
inspection also results in a major non-conformance, then the production shall be subject within two
months to a repeated initial inspection of the factory and of the factory production control together with
a surveillance inspection. When this repeated initial inspection and surveillance inspection also results
in a major non-conformance, then the products are considered as no longer conforming to this
document.
6 Marking and/or labelling
6.1 General
All voluntary marking and/or labelling shall comply with Annex C.3.
Care shall be taken to ensure that any voluntary marking and/or labelling does not cause confusion
with respect to the mandatory requirements.
NOTE All marking and/or labelling of product to demonstrate compliance with the regulatory requirement is
detailed in Annex ZA.
6.2 Product marking
There is no requirement to mark coated glass products. However, if they are processed, e.g. thermally
toughened, heat strengthened etc, then they have to comply with the appropriate product standard,
e.g. EN 12150, EN 1863.
6.3 Product characteristics
The manufacturer or his agent shall organise a system of references that allows for the following:
 identification of exactly which characteristics have to be assessed (see Clause 4.3);
 those characteristics that will be assessed;
 values, classes, categories, etc. that have been determined for those characteristics.
This system shall be documented as part of the evaluation of conformity.
6.4 “Characteristics/performance identification paper”
The manufacturer shall prepare a “characteristics/performance identification paper” based on the
information collected on the product characteristics (see 6.3). This document shall be part of the
manufacturer's technical file and is the basis for the accompanying info
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