prEN 1096-5

Glass in building - Coated glass - Part 5: Test method and classification for the self-cleaning performances of coated glass surfaces

This draft defines a test method to establish the self-cleaning performances and classes for coatings on glass
which utilise sun, rain or a combination of sun and rain to enhance the cleanliness of the glass.
The draft applies to coated glass for use in outdoor building applications. The test is designed to be applicable
for coatings on glass which use hydrophilic or photocatalytic active functionalities to enhance the cleanliness
of the glass.
The test procedure does not specifically address the durability of the coatings self cleaning functionality.
The test method is designed to be run on monolithic samples of the products. In cases where dual coated
products (that is, a glass presenting self cleaning coating on one side and another coating on the other side)
exist it would be necessary to obtain the equivalent glass with only the self cleaning coating on one side (or to
remove the back side coating by polishing, providing it does not damage the self cleaning coating on the
opposite side). If not possible, adapted protection of back side coating should be added (such as protective
film with electrostatic or low adhesive charge,or DGU assembly)
For tinted glass and absorbing layers (a self cleaning or dual coatings) the luminous absorption might affect
the haze measurements. The test has to be runned on clear glass and extrapolation will be made for tinted
glass and absorbing layers.

Glas im Bauwesen - Beschichtetes Glas - Teil 5: Prüfverfahren und Klasseneinteilung für das Selbstreinigungsverhalten von beschichteten Glasoberflächen

In diesem Entwurf wird ein Prüfverfahren beschrieben, mit dessen Hilfe das Selbstreinigungsverhalten und Klassen für Beschichtungen auf Glas festgelegt werden können, die unter Nutzung von Sonne, Regen oder einer Kombination aus Sonne und Regen die Sauberkeit des Glases verbessern sollen.
Dieser Entwurf gilt für beschichtetes Glas im Außenbereich von Gebäuden. Die Prüfung wurde zur Anwendung für Beschichtungen auf Glas entwickelt, die hydrophile oder photokatalytisch wirksame Funktionen für die Verbesserung der Sauberkeit des Glases nutzen.
Das Prüfverfahren berücksichtigt nicht im Speziellen die Dauerhaftigkeit der Selbstreinigungsfunktion von Beschichtungen.
Das Prüfverfahren wurde für die Durchführung an monolithischen Proben der Produkte entwickelt. Im Falle eines doppelt beschichteten Produkts (d. h. ein Glas, das eine selbstreinigende Beschichtung auf der einen Seite und eine andere Beschichtung auf der anderen Seite aufweist), wäre es erforderlich, das entsprechende Glas mit ausschließlich der selbstreinigenden Beschichtung auf der einen Seite zu beschaffen (oder die Beschichtung auf der Rückseite durch Polieren zu entfernen, vorausgesetzt, dass die selbstreinigende Beschichtung auf der gegenüberliegenden Seite dabei nicht beschädigt wird). Ist das nicht möglich, sollte auf der Beschichtung auf der Rückseite ein zusätzlicher Schutz aufgebracht werden (z. B. ein Schutzfilm mit elektrostatischer oder gering haftender Aufladung oder durch die Montage einer Doppelverglasung).
Bei getöntem Glas und Absorptionsschichten (eine selbstreinigende Beschichtung oder Doppel-beschichtungen) kann sich die Strahlenabsorption auf die Trübungsmessungen auswirken. Die Prüfung muss mit Klarglas durchgeführt werden und bei getöntem Glas und Absorptionsschichten muss eine Extrapolation vorgenommen werden.

Verre dans la construction - Verre à couche - Partie 5: Méthode d'essai et classification des performances autonettoyantes des surfaces de verre à couche

Le présent projet définit une méthode d’essai permettant d’établir les performances autonettoyantes et les classes des couches sur verre utilisant le soleil, la pluie ou une combinaison des deux pour améliorer la propreté du verre.
Le présent projet s’applique au verre à couche utilisé pour des applications à l’extérieur des bâtiments. L’essai est conçu pour être applicable aux couches sur verre qui utilisent des fonctions actives hydrophiles ou photocatalytiques pour améliorer la propreté du verre.
Le mode opératoire d’essai ne traite pas spécifiquement de la durabilité de la fonction autonettoyante des couches.
La méthode d’essai est conçue pour être utilisée sur des échantillons monolithiques des produits. Si le produit est à revêtement dual (c’est-à-dire qu’il s’agit d’un verre présentant une couche autonettoyante sur une face et une autre couche sur l’autre face), il est nécessaire d’obtenir un verre équivalent ayant uniquement une couche autonettoyante sur une face (ou d’éliminer la couche sur l’autre face par polissage, à condition que cela n’endommage pas la couche autonettoyante sur la face opposée). Si cela est impossible, il convient d’ajouter une protection appropriée sur la couche de la face arrière (par exemple un film protecteur avec une charge électrostatique ou faiblement adhésive, ou un montage en double vitrage).
Pour le verre teinté et les couches absorbantes (couche autonettoyante ou revêtement dual), l’absorption lumineuse pourrait avoir une incidence sur le mesurage du flou. L’essai doit être réalisé sur un verre clair et extrapolé pour le verre teinté et les couches absorbantes.

Steklo v gradbeništvu - Steklo z nanosi - 5. del: Metode preskušanja in klasifikacija za samočistilne lastnosti površine stekla z nanosom

General Information

• Status: Not Published
• Publication Date: 06-Mar-2013
• Withdrawal Date: 08-Sep-2013
• ICS: 81.040.20 - Glass in building
• Technical Committee: CEN/TC 129 - Glass in building
• Drafting Committee: CEN/TC 129/WG 6 - Coated glass for windows
• Current Stage: 4098 - Decision to abandon - Enquiry
• Start Date: 01-Aug-2013
• Completion Date: 01-Aug-2013
• 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 1096-5:2011 - Glass in building - Coated glass - Part 5: Test method and classification for the self-cleaning performances of coated glass surfaces

Standards Content (Sample)

SLOVENSKI STANDARD
01-september-2011
6WHNORYJUDGEHQLãWYX6WHNOR]QDQRVLGHO0HWRGHSUHVNXãDQMDLQNODVLILNDFLMD
]DVDPRþLVWLOQHODVWQRVWLSRYUãLQHVWHNOD]QDQRVRP
Glass in building - Coated glass - Part 5: Test method and classification for the self-
cleaning performances of coated glass surfaces
Glas im Bauwesen - Beschichtetes Glas - Teil 5: Prüfverfahren und Klasseneinteilung für
das Selbstreinigungsverhalten von beschichteten Glasoberflächen
Verre dans la construction - Verre à couche - Partie 5: Méthode d'essai et classification
des performances autonettoyantes des surfaces de verre à couche
Ta slovenski standard je istoveten z: prEN 1096-5
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
May 2011
ICS 81.040.20
English Version
Glass in building - Coated glass - Part 5: Test method and
classification for the self-cleaning performances of coated glass
surfaces
Verre dans la construction - Verre à couche - Partie 5: Glas im Bauwesen - Beschichtetes Glas - Teil 5:
Méthode d'essai et classification des performances Prüfverfahren und Klasseneinteilung für das
autonettoyantes des surfaces de verre à couche Selbstreinigungsverhalten von beschichteten
Glasoberflächen
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 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
© 2011 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1096-5:2011: E
worldwide for CEN national Members.

Contents Page
Foreword .4
1 Scope .4
2 Normative references .4
3 Terms and definitions .4
4 Principle of the test.5
5 Instrumentation .6
5.1 UVA-Illumination chamber .6
5.2 Sample support .6
5.3 Spraying nozzle .6
5.4 Dirt mixture pressure tank .6
5.5 Water pressure tank .7
5.6 Timer for spray .7
6 Preparation of the glass samples .7
6.1 Tested sample .7
6.2 Reference .8
7 Principle of haze measurement .8
7.1 Back side cleaning.8
7.2 Position of haze measurements on the samples .8
7.3 Measurement of Transmission Haze .9
8 Preparation of dirt mixture . 10
8.1 Stearic acid solution . 10
8.2 Adipic acid solution . 10
8.3 Solid compound suspension . 10
8.4 Final dirt mixture . 11
9 Test procedure . 11
9.1 Initial activation . 11
9.1.1 Glass samples cleaning . 11
9.1.2 UV irradiation . 11
9.1.3 Initial haze measurement . 12
9.2 First cycle . 12
9.2.1 Dirt mixture spraying . 12
9.2.2 Drying . 12
9.2.3 Haze measurement after dirt spray . 13
9.2.4 UV-A irradiation . 13
9.2.5 Haze measurement after UV illumination . 13
9.2.6 Deionised water spraying . 13
9.2.7 Drying . 14
9.2.8 Haze measurement . 14
9.3 Second cycle . 14
9.4 Collection of the results . 14
10 Classification . 15
11 Test report . 15
Annex A (normative) Sample support and spray installation . 17
A.1 Spray rig . 17
A.2 Spray system . 18
Annex B (normative) Haze measurement method . 20
B.1 The instrument . 20
B.2 Calculation . 21
B.3 Values . 22
B.4 Short cut procedures . 22
Annex C (normative) Contamination checking procedure . 23
Annex D (normative) Statistical analysis of test results . 24
D.1 Calculation of statistical numbers to obtain a self cleaning functionality used for
classification of coated glass . 24
Annex E (informative) Round Robin tests . 26

Foreword
This document (prEN 1096-5:2011) 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.
1 Scope
This draft defines a test method to establish the self-cleaning performances and classes for coatings on glass
which utilise sun, rain or a combination of sun and rain to enhance the cleanliness of the glass.
The draft applies to coated glass for use in outdoor building applications. The test is designed to be applicable
for coatings on glass which use hydrophilic or photocatalytic active functionalities to enhance the cleanliness
of the glass.
The test procedure does not specifically address the durability of the coatings self cleaning functionality.
The test method is designed to be run on monolithic samples of the products. In cases where dual coated
products (that is, a glass presenting self cleaning coating on one side and another coating on the other side)
exist it would be necessary to obtain the equivalent glass with only the self cleaning coating on one side (or to
remove the back side coating by polishing, providing it does not damage the self cleaning coating on the
opposite side). If not possible, adapted protection of back side coating should be added (such as protective
film with electrostatic or low adhesive charge,or DGU assembly)
For tinted glass and absorbing layers (a self cleaning or dual coatings) the luminous absorption might affect
the haze measurements. The test has to be runned on clear glass and extrapolation will be made for tinted
glass and absorbing layers.
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.
EN1096-1:1998, Glass in Building – Coated Glass – Part 1: Definitions and classifications
EN1096-2:2001, Glass in Building – Coated Glass – Part 2: Requirements and test methods for class A, B
and S coatings
ISO 4892-1:2000, Plastics – Methods of exposure to laboratory light sources – Part 1: General guideline.
ISO 4892-3:2006, Plastics – Methods of exposure to laboratory light sources – Part 3: Fluorescent UV lamps.
3 Terms and definitions
For the purposes of this document, the following definitions apply, and when not conflicting, the definitions of
EN 1096-1 apply.
3.1
coated glass
glass substrate as defined in 3.2 to which has been applied a coating, as defined in 3.3 in order to modify one
or more of its properties
3.2
glass substrate
a basic glass, thermally toughened safety glass, heat-strengthened glass
3.3
coating
one or more thin solid layers of inorganic materials applied onto the surface of a glass substrate
...