oSIST prEN 16477-1:2012

SLOVENSKI STANDARD
oSIST prEN 16477-1:2012
01-oktober-2012
Steklo v gradbeništvu - Poslikano steklo za interno uporabo - 1. del: Zahteve
Glass in building - Painted glass for internal use - Part 1: Requirements
Glas im Bauwesen - Farbiges Glas für den Innenbereich - Teil 1: Prüfungen und
Anforderungen
Verre dans la construction - Verre laqué destiné à un usage à l’intérieur - Partie 1: Essais
et exigences
Ta slovenski standard je istoveten z: prEN 16477-1
ICS:
81.040.20 Steklo v gradbeništvu Glass in building
oSIST prEN 16477-1:2012 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 16477-1:2012


EUROPEAN STANDARD
DRAFT
prEN 16477-1
NORME EUROPÉENNE

EUROPÄISCHE NORM

August 2012
ICS 81.040.20
English Version
Glass in building - Painted glass for internal use - Part 1:
Requirements
Verre dans la construction - Verre laqué destiné à un usage Glas im Bauwesen - Farbiges Glas für den Innenbereich -
à l'intérieur - Partie 1: Essais et exigences Teil 1: Prüfungen und Anforderungen
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, 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 16477-1:2012: E
worldwide for CEN national Members.

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Contents Page
Foreword .4
Introduction .4
1 Scope .4
2 Normative references .4
3 Terms and definitions .5
4 Materials .6
4.1 Glass products .6
4.2 Paint coating(s) .6
5 Dimensional requirements .6
5.1 Thickness .6
5.2 Length, width and squareness .6
6 Quality requirements .8
6.1 General .8
6.2 Quality assessment and inspection methods for painted glass .8
6.2.1 Visual inspection method .8
6.2.2 Measurement of the ∆ E* .9
6.2.3 Painted glass faults .9
6.2.4 Edge faults .9
6.3 Acceptance levels .9
6.3.1 Glass faults .9
6.3.2 Edge faults . 10
6.3.3 Colour variation in one production batch or installation . 12
7 Classification of painted glass . 12
8 Testing of painted glass . 13
8.1 Durability . 13
8.1.1 General . 13
8.1.2 Test specimens . 13
8.1.3 High humidity test (condensation water test) . 13
8.1.4 High temperature test without water . 14
8.1.5 Radiation resistance test . 14
8.2 Paint coating(s) adhesion . 15
8.3 Summary of the tests and requirements, by classes. 16
Annex A (normative) Condensation water test in constant atmosphere . 17
A.1 Purpose and scope . 17
A.2 Test conditions . 17
A.3 Climatic testing device . 17
A.3.1 Climatic chamber . 17
A.3.2 Installation of the climatic chamber. 18
A.3.3 Device of the accommodation of the specimens (specimen holder) . 18
A.4 Procedure . 18
A.4.1 Filling the floor trough . 18
A.4.2 Specimens . 18
A.4.3 Arrangement of the specimens . 18
A.4.4 Test sequence . 19
A.4.5 End of test . 19
A.4.6 Interruption . 19
A.4.7 Cleaning procedure . 19
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A.5 Test report . 19
Annex B (normative) Measurement of the ∆ E* . 21
B.1 Colour quantification . 21
B.2 Measurement of the colour. 21
B.3 Calculation of ∆ E* . 22
Annex C (informative) Fixing and cleaning of painted glass after installation . 23
C.1 General . 23
C.2 Factors affecting durability . 23

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Foreword
This document (prEN 16477-1:2012) 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.
Introduction
1 Scope
This European Standard specifies minimum quality requirements (in respect of optical, visual and edge faults)
and durability tests for painted glass for internal use in building.
This standard applies only to painted glass manufactured from annealed soda lime silicate float glass or
coated annealed soda lime silicate float glass (see EN 572-1, 572-2 and EN 1096-4). The painted glass may
be translucent, transparent or opaque and supplied in stock/standard sizes and as-cut finished sizes.
NOTE 1 Painted glass may be manufactured from other annealed glass or thermally treated glass. However the
standard does not give information on minimum quality requirement for this substrate. The durability test methods are
applicable.
For painted glass used in aggressive and/or constantly high humidity atmospheres, e.g. horse riding halls,
swimming pools, medical baths, saunas, etc. this standard is not applicable.
NOTE 2 Bathrooms and kitchens are not considered as constantly high humidity atmospheres.
This standard does not give requirements for framing, fixing or other support systems.
NOTE 3 Useful advice on these items is contained in the informative annex C.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
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 572-8, Glass in building – Basic soda lime silicate glass products – Part 8: Supplied and final cut sizes.
EN 572-9, Glass in building – Basic soda lime silicate glass products- Part 9 Evaluation of conformity/Product
standard.
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EN 1096-4, Glass in building - Coated glass - Part 4: Evaluation of conformity/Product standard.
ISO 2409:1992, Paints and varnishes – Cross-cut test.
ISO 11341:2004, Paints and varnishes -- Artificial weathering and exposure to artificial radiation -- Exposure
to filtered xenon-arc radiation.
ISO 11664-4, Colorimetry - Part 4: CIE 1976 L*a*b* Colour space.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
painted glass
flat glass whose rear surface has been coated with a paint
3.2
paint
organic coating covering glass
3.3
stock/standard sizes
panes of painted glass supplied with as-cut edges which are intended for further processing
3.4
finished sizes
finished panes of painted float glass cut from stock/standard sizes which may be as-cut or subject to further
processing, e.g. edges working, drilling, face decoration etc.
3.5
glass appearance faults
faults which alter the visual quality of the painted glass, for example spot and/or linear and/or enlarged area
faults
3.6
paint coating(s) faults
faults which are directly related to the paint coating, for example scratches, spot faults, and variation of colour
or lack of adhesion of the paint coating
3.7
Spot faults
punctual disturbance that may come from a glass defect e.g. nuclei (solid or gaseous inclusions), deposits,
crush marks or from a paint coating defect e.g. dust, pinhole, de-wetting and observed from the glass side
3.8
lack of adhesion point
spot fault where the paint is no longer adhered to the glass, detected in reflection as a more brilliant point
3.9
cluster
group of not less than 3 spot faults, separated by not more than 50 mm
3.10
linear faults
scratches, extended spot faults etc. on the glass surface or on the paint, seen from the glass surface side
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3.11
glass brush marks
very fine circular scratches that are barely visible and are associated with glass cleaning techniques
3.12
variation of colour
change of colour that may occur after an ageing test e. g. fading
4 Materials
4.1 Glass products
Painted glass, according to this standard, is made from glass products generally conforming to:
 Soda lime silicate float glass conforming to EN 572-9;
 Coated glass conforming to EN 1096-4;
 Surface treated glass (acid-etched and sand blasted glass).
Other glass types may also be used.
4.2 Paint coating(s)
The glass described in 4.1 shall be covered partially or completely by one or more paint layers.
5 Dimensional requirements
5.1 Thickness
The actual thickness shall be the average of four measurements, taken to the nearest 0,01 mm, one taken at
the centre of each side. Measurement shall be performed by an appropriate instrument e.g. a calliper
micrometre.
The nominal thickness of the painted product declared by the manufacturer is the nominal thickness of the
substrate. The actual thickness, rounded to the nearest 0,1 mm shall not vary from the declared thickness by
more than the tolerances of the substrate.
5.2 Length, width and squareness
5.2.1 Width B and length H
When painted glass sizes are quoted for rectangular panes, the first dimension shall be the width B and the
second dimension the length H as shown in figure 1.
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Key
H  Length of rectangular pane
B  Width of rectangular pane
l  Direction of draw
Figure 1 — Relationship between length, width and direction of flaw
Dimensions shall be given in millimetres. Each dimension shall be within the limit deviations specified.
5.2.2 Methods of measuring dimensions and squareness
The nominal dimensions for width B and length H being given, the pane shall not be larger than the nominal
dimensions increased by the tolerance or smaller than the nominal dimensions reduced by the tolerance (see
Figure 2).
The squareness of rectangular glass panes is expressed by the difference between its diagonals (see figure
3). The difference between the two diagonals shall not be larger than the deviation mentioned in product
standard corresponding to the glass substrate.

Key
B Width
H Length
α,β Tolerance limits for dimensions
Figure 2 — Determination of dimensions
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Key
D1, D2 Diagonals
Figure 3 — Determination of diagonals
Evaluation methods and tolerances of the glass substrate product standard apply.
6 Quality requirements
6.1 General
The quality of a painted glass can be affected by faults resulting from faults in the paint and faults in the glass.
6.2 Quality assessment and inspection methods for painted glass
6.2.1 Visual inspection method
6.2.1.1 Inspection of the opaque painted glass (in reflection)
The painted glass shall be observed in a vertical position against an unlit background, glass side, with the
naked eye and under normal diffused lighting conditions, from a distance of 1 m. The direction of observation
is normal, i.e. at right angle, to the painted glass. The use of an additional lighting source, e.g. spotlight, is not
allowed. Defects on painted side are acceptable as long as they are not visible from the glass side.
NOTE Normal diffused lighting conditions is assumed to be natural daylight or simulated daylight illuminant D65,
observer 10°, between 300 Lux and 600 Lux at the painted glass.
6.2.1.2 Inspection of the translucent and transparent painted glass (in transmission)
The painted glass shall be observed in a vertical position against a lit background, glass side, with the naked
eye and under normal diffused lighting conditions, from a distance of 1 m. The direction of observation is
normal, i.e. at right angle, to the painted glass. The use of an additional lighting source, e.g. spotlight, is not
allowed. Defects on painted side are acceptable as long as they are not visible from the glass side.
NOTE Normal diffused lighting conditions is assumed to be natural daylight or simulated daylight illuminant D65,
observer 10°, between 300 Lux and 600 Lux at the painted glass.
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6.2.2 Measurement of the ∆ E*
The ∆ E* should be measured on the glass side, according to annex B.
6.2.3 Painted glass faults
Glass and paint faults are assessed using the method in 6.2.1. The dimension and number of spots, hairline
scratches and scratches that cause disturbance to vision shall be noted.
6.2.4 Edge faults
The edge quality of stock/standard or as-cut finished painted glass can be affected by the presence of
entrant/emergent faults and shelling. Using the inspection method of 6.2.1, the edges of the painted glass
panes shall be checked for the presence of shells, corners on/off and edge vents.
6.3 Acceptance levels
6.3.1 Glass faults
The acceptance level for glass faults are given in :
 Table 2 for stock/standard sizes;
 Table 3 for as-cut finished sizes.
NOTE The tables are based on soda lime silicate float glass (EN 572-9). Other glass type refer to applicable product
standards.
a
Table 1 — Acceptance levels of faults in painted glass in stock/standard sizes
Painted glass b
Linear faults (mm)
Jumbo size All different sizes
Max defects /sheet (19,3 m²) Defects / m²
Brush marks (≤ 50) 8 0,37
Scratches (≤ 50) 3 0,14
Painted glass
c
Spot faults (mm)
Jumbo size All different sizes
Max defects /sheet (19,3 m²) Defects / m²
d d
≤ 0,5 Accepted Accepted
>0,5 and ≤ 1 10 1.35
> 1 1 0.16
a
A border zone of 50 mm around the painted glass shall be discarded and not subjected to defect restriction.
b
The average shall be calculated taking into account the total individual pack area (m²). All calculation assume
mathematical rounding.
c
The dimensions stated are without the effect of the halo (see EN 572-2) and relate to the largest of the fault dimensions.
d
Accepted, providing they do not form a cluster.


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Table 2 — Acceptance levels of faults in painted glass in as-cut finished sizes
c
Area finished sizes cut Linear faults
Spot faults
or cut and ground
a , b
Centre zone  Brush marks Scratches
 Border zone

d
> 0.5mm ≥ 0.2mm > 0.5mm < 50 mm
≥ 0.2mm
≤ 0.5mm ≤ 1.0mm
≤ 0.5mm
≤1.0 m² 1 0 2 0 0 0
1.01 to 1.5 m² 2 0 3 1 1 0
> 1.51 m² 3 0 4 2 2 0
a
The size of the border zone is determined as 15% of the edge length and width (see figure 4).
b
Defects greater than 0.5 mm (in centre zone) and 1.0 mm (border zone) are not accepted.
c
The dimensions stated are without the effect of the halo (see EN 572-2) and relate to the largest of the fault dimensions.
d
Defects smaller than 0.2 mm are accepted providing they do not form a cluster.


Key
L Length
W Width
Figure 4 — Determination of central and border zone
6.3.2 Edge faults
6.3.2.1 Chips or shells
For stock/standard sizes, entrant or emergent chips or shells, visible under the conditions in 6.2.1, shall be
accepted provided they do not exceed a maximum length and depth of 10 mm and half the nominal glass
thickness (see figure 5).
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Dimension in millimetre

Figure 5 — Edge shell dimensions for stock/standard sizes
For as-cut finished sizes, entrant or emergent chips or shells, visible under the conditions in 6.2.1, shall be
accepted provided they are not greater than 1,5 mm deep (see figure 6).
Dimension in millimetre


Figure 6 — Edge shell dimensions for as-cut finished sizes
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6.3.2.2 Corners on/of
For stock/standard sizes occasional corners on/off (see figure 7), visible under the conditions in 6.2.1, shall be
allowed. No more than 5% of the sheets on a delivery shall be affected.
Dimension in millimetre

Figure 7 — Dimension of corners on/off
For as-cut finished sizes corners on/off shall not be allowed.
6.3.2.3 Vented (cracked) edges
Vented (cracked) edges, visible under conditions described in 6.2.1, shall not be allowed with either
stock/standard sizes or as-cut finished sizes.
6.3.3 Colour variation in one production batch or installation
In order to avoid colour difference coming from deviation from batch to batch, panes placed next to each other
should ideally come from the same production batch.
The allowable variation of the colorimetric measurements, measured on the glass side, between panes shall
be:
∆ E* ≤ 2
The ∆ E* should be measured on the glass side, according to annex B.
7 Classification of painted glass
Depending on the application, the requirements for the painted glass will not be the same. Two classes of
applications are defined:
 Class A: painted glass for all internal applications covered by the scope;
 Class B: painted glass for continuously dry internal applications.
NOTE Continuously dry internal applications exclude bathroom, shower cabinet, kitchen.
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8 Testing of painted glass
8.1 Durability
8.1.1 General
The durability of painted glass for internal use shall be determined by a number of tests, in accordance with
the following specifications:
 High humidity test (see annex A: condensation water test);
 High temperature test without water;
 Radiation resistance test ISO 11341.
8.1.2 Test specimens
The painted glass shall be cut to the specimen size of 100 mm x 100 mm and stored in ambient conditions at
least 24h before testing. Cutting oils shall not be used during cutting of the specimen. For each test, three
samples shall be tested.
Concerning radiation resistance test, the glass thickness shall be the minimum thickness produced. If the test
equipment does not allow this sample dimension, the test specimens may be cut to other dimensions
providing that the area is not less than 10 000 mm². The maximum allowable number of defects after test will
be calculated proportionally to the real area of the sample tested.
8.1.3 High humidity test (condensation water test)
8.1.3.1 Position of specimens
The specimens shall be placed in the testing cabinets with the paint coating side up at an angle as defined in
annex A.
8.1.3.2 Test condition
Test will be conducted according to Annex A, at (40 ± 3)°C, during 168 hours.
8.1.3.3 Evaluation
The specimens shall be examined in conditions described in 6.2.1. A magnifying glass shall be used to
measure spot fault diameter(s) with exception of extreme corner and that is caused by a cutting defect.
The sample may be gently rinsed with demineralised or distilled water before examination.
NOTE a spotlight may be used for the identification of minor paint coating faults
8.1.3.4 Acceptance criteria
Painted glass when tested in accordance with 8.1.2 shall comply with the following:
Class A
 Five spot faults or lack of adhesion greater or equal to 0,2 mm and smaller than 1 mm in diameter shall
be allowed on the total of the three tested samples. Spots faults smaller than 0,2 mm are allowed
provided they do not form a cluster;
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 ∆ E* ≤ 2 on each tested sample.
Class B
 This test is not required for class B products. No criteria are defined.
8.1.4 High temperature test without water
8.1.4.1 Test procedure
The three test specimens shall be heated in an oven to a temperature of 65 (+0, -3) °C. This temperature shall
be maintained for a period of 168 hours, and then the test specimens allowed to cool to room temperature.
8.1.4.2 Evaluation
The specimens shall be examined in conditions described in 6.2.1. A magnifying glass shall be used to
measure spot fault diameter(s) with exception of extreme corner and that is caused by a cutting defect.
The sample may be gently rinsed with demineralised or distilled water before examination.
NOTE A spotlight may be used for the identification of minor paint coating faults.
The ∆ E* shall be measured on the glass side, according to annex B.
8.1.4.3 Acceptance criteria
Painted glass when tested in accordance with 8.1.3 shall comply with the following:
Class A
 1 Spot fault or lack of adhesion greater or equal to 0,2 mm and smaller than 1 mm in diameter shall be
allowed on the total of the three tested samples. Spots faults smaller than 0,2 mm shall be allowed
provided they do not form a cluster;
 ∆ E* ≤ 2 on each tested sample.
Class B
 1 Spot fault or lack of adhesion greater or equal to 0,2 mm and smaller than 1 mm in diameter shall be
allowed on the total of the three tested samples. Spots faults smaller than 0,2 mm shall be allowed
provided they do not form a cluster;
 ∆ E* shall not be measured.
8.1.5 Radiation resistance test
8.1.5.1 Position of specimens
The specimens shall be placed in the testing cabinets with the glass side facing the lamps.
8.1.5.2 Test condition
The test will be conducted following ISO 11341, Method 2 (irradiation through a 3 mm glass), cycle C (dry
condition, continuous irradiation), during 500 hours. The temperature shall be limited to (55 ± 2)°C (BST) or
(50± 2)°C (BPT) as indicated in ISO 11341 clause 9.2.
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8.1.5.3 Evaluation
The specimens shall be examined in conditions described in 6.2.1. A magnifying glass shall be used to
measure spot fault diamete
...