EN ISO 15110:2013

SLOVENSKI STANDARD
01-julij-2013
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Paints and varnishes - Artificial weathering including acidic deposition (ISO 15110:2013)
Beschichtungsstoffe - Künstliches Bewittern mit saurer Beanspruchung (ISO
15110:2013)
Peintures et vernis - Viellissement artificiel déposition acide inclus (ISO 15110:2013)
Ta slovenski standard je istoveten z: EN ISO 15110:2013
ICS:
87.040 Barve in laki Paints and varnishes
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 15110
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2013
ICS 87.040
English Version
Paints and varnishes - Artificial weathering including acidic
deposition (ISO 15110:2013)
Peintures et vernis - Viellissement artificiel comportant un Beschichtungsstoffe - Künstliches Bewittern mit saurer
dépôt acide (ISO 15110:2013) Beanspruchung (ISO 15110:2013)
This European Standard was approved by CEN on 2 February 2013.

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. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.

This European Standard exists 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.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 15110:2013: E
worldwide for CEN national Members.

Contents Page
Foreword .3
Foreword
This document (EN ISO 15110:2013) has been prepared by Technical Committee ISO/TC 35 “Paints and
varnishes” in collaboration with Technical Committee CEN/TC 139 “Paints and varnishes” the secretariat of
which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by September 2013, and conflicting national standards shall be
withdrawn at the latest by September 2013.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: 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 the United Kingdom.
Endorsement notice
The text of ISO 15110:2013 has been approved by CEN as EN ISO 15110:2013 without any modification.
INTERNATIONAL ISO
STANDARD 15110
First edition
2013-03-15
Paints and varnishes — Artificial
weathering including acidic deposition
Peintures et vernis — Vieillissement artificiel comportant un dépôt acide
Reference number
ISO 15110:2013(E)
©
ISO 2013
ISO 15110:2013(E)
© ISO 2013
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
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Published in Switzerland
ii © ISO 2013 – All rights reserved

ISO 15110:2013(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Principle . 1
4 Apparatus . 2
4.1 General . 2
4.2 Laboratory radiation sources . 2
4.3 Test chamber . 2
4.4 Wetting system. 2
4.5 Specimen holders . 2
4.6 Black-standard thermometer . 2
4.7 Humidity sensor . 2
4.8 Acid spray device . 2
4.9 Radiometer . 3
5 Solutions for artificial acidic deposition . 3
6 Test specimens. 3
6.1 General . 3
6.2 Specimen size . 3
6.3 Corrosion of the substrates . 3
6.4 Reference specimens . 4
7 Designation of type of test . 4
8 Procedure. 4
8.1 General . 4
8.2 Wetting and relative humidity . 4
8.3 Acid spraying . 5
8.4 Weathering cycles . 5
8.5 Test duration . 6
8.6 Further weathering of specimens . 7
9 Assessment of results . 7
10 Precision . 7
10.1 General . 7
10.2 Repeatability . 7
11 Test report . 8
Annex A (informative) Background information .10
Bibliography .13
ISO 15110:2013(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International
Standards adopted by the technical committees are circulated to the member bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the member bodies
casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 15110 was prepared by Technical Committee ISO/TC 35, Paints and varnishes, Subcommittee SC 9,
General test methods for paints and varnishes.
iv © ISO 2013 – All rights reserved

ISO 15110:2013(E)
Introduction
This International Standard specifies a method of simulating the damaging effect of outdoor weathering
with relevance to acidic atmospheric precipitation on polymeric products. In addition to the classical
environmental variables of temperature and humidity, acidic atmospheric precipitation can also have
a significant effect on the photochemical ageing of polymers, e.g. by attacking the stabilizers. The
mechanisms differ from those of harmful gases, which essentially constitute the initial products of
acidic precipitation.
Arising from changing industrial air pollution and additionally diffused by the stochastic wind and cloud
distribution, acidic precipitation occurs sporadically. Thus, especially regarding acidic precipitation,
outdoor weathering effects vary enormously within different years. Therefore, it is practically impossible
to obtain reliable outdoor exposure results from just one season. These fluctuations can be avoided
through the use of a laboratory test, where all weathering parameters, including the acidic deposition,
can be controlled.
[9]
The method is based on VDI Guideline VDI 3958-12.
INTERNATIONAL STANDARD ISO 15110:2013(E)
Paints and varnishes — Artificial weathering including
acidic deposition
1 Scope
This International Standard specifies a so-called acid dew and fog test (ADF test) as an accelerated
laboratory test method for simulating, by the use of artificial acidic precipitation, the damaging effects of
acidic atmospheric precipitation in association with UV radiation, neutral condensed precipitation, and
changing temperature and humidity. This test method is intended to be used in evaluating, on the basis
of relative performance rankings, the suitability of polymeric materials for use in outdoor environments
with acidic precipitation. It is not intended to generate the same extent of damage or the same damage
pattern as in outdoor weathering, but rather to give a ranking which is similar to that which would be
obtained in outdoor weathering. The method produces damage which is more homogeneous, allows
fewer specimens to be exposed (and hence more rapid testing) and enables evaluation of the exposed
specimens to be carried out using methods which are more objective than visual assessment.
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.
ISO 4892-1, Plastics — Methods of exposure to laboratory light sources — Part 1: General guidance
ISO 4892-2:2006, Plastics — Methods of exposure to laboratory light sources — Part 2: Xenon-arc lamps
ISO 4892-3:2006, Plastics — Methods of exposure to laboratory light sources — Part 3: Fluorescent UV lamps
3 Principle
The combined action of solar UV radiation, heat, humidity, wetting and acidic deposition is simulated in
weathering devices similar to those described in ISO 4892-2 and ISO 16474-2 for xenon-arc lamps, and
in ISO 4892-3 and ISO 16474-3 for fluorescent UV lamps.
Included in the artificial exposure is an acidic exposure, which is accomplished by a once-per-day
spraying of acid. The aim of this test is not to reproduce the visual damage patterns which result from
outdoor exposures, which show a very widespread distribution that is hard to evaluate. Rather, the
aim is to reproduce the same ranking which would be obtained with an outdoor exposure, by causing
damage by the same mechanisms but creating a homogeneous distribution on a smaller scale that can
be evaluated in an objective way.
Accelerated weathering is achieved by the serial arrangement of the worst conceivable combinations of
environmental conditions for the object under test (referred to hereafter as the “worst-case scenario”).
This is accomplished by reproducing these environmental conditions in a more compressed sequence
than would be the case outdoors and by including artificial acidic precipitation. However, the values of
the environmental conditions used do not significantly exceed those encountered in practice outdoors.
ISO 15110:2013(E)
4 Apparatus
4.1 General
For this test, weathering devices as specified in either ISO 4892-2 or ISO 4892-3 shall be used. The test
chamber, as well as the specimen holders, shall be made of acid- and UV-resistant materials.
4.2 Laboratory radiation sources
4.2.1 Fluorescent UV lamp apparatus
Fluorescent UV lamp apparatus shall be in accordance with that specified for ISO 4892-3:2006, method A,
using type 1A lamps. For a fluorescent UV lamp apparatus giving the spectral distribution specified for
ISO 4892-3:2006, method A, a UV irradiance of E = (45 ± 5) W/m , constant over time and uniformly
UV
applied to the specimens in the weathering device, shall be achieved in the spectral range 290 nm to 400 nm.
4.2.2 Xenon arc lamp apparatus
Xenon-arc lamp apparatus shall be in accordance with that specified for ISO 4892-2:2006, method A.
Irradiance uniformity shall be in accordance with the requirements specified in ISO 4892-1. For a xenon-arc
lamp apparatus, equipped with daylight filters, giving the spectral distribution specified for ISO 4892-2:2006,
method A, the UV irradiance shall be E = (60 ± 5) W/m in the spectral range 300 nm to 400 nm.
UV
4.3 Test chamber
The design of the test chamber may vary, but it shall be constructed from inert material, meeting
the requirements of ISO 4892-1 and ISO 4892-2 or ISO 4892-3, respectively. The test chamber shall
provide for control of temperature or black standard temperature and for humidity control that meets
the requirements of ISO 4892-1. Devices shall also be provided to produce water spray. Water used for
the water spray shall meet the requirements of ISO 4892-1. The weathering device shall be capable of
completing the change from each climatic phase to the next during the ADF test within 30 min.
4.4 Wetting system
The test chamber shall be equipped with a means of introducing an intermittent spray of water onto the
front of the test specimens, under specified conditions. The spray system shall be made from corrosion-
resistant materials that do not contaminate the water employed.
The water spray system in xenon-arc lamp instruments shall be as specified in ISO 4892-2.
4.5 Specimen holders
The specimen holders shall be made from inert materials that will not affect the test results, for example
non-oxidizing alloys of aluminium, or stainless steel. Brass, steel or copper shall not be used.
4.6 Black-standard thermometer
The black-standard thermometer used shall comply with the requirements for these devices that are
given in ISO 4892-1.
4.7 Humidity sensor
Use a hygrometer for measuring the relative humidity.
4.8 Acid spray device
A manually operated atomizer or an automatic spraying device may be used.
2 © ISO 2013 – All rights reserved

ISO 15110:2013(E)
4.9 Radiometer
When a radiometer is used, it shall comply with the requirements of ISO 4892-1.
5 Solutions for artificial acidic deposition
Prepare an acid mixture with a pH of 1,5 at (25 ± 2) °C by dissolving 10,6 g of H SO , 3,18 g of HNO and
2 4 3
1,80 g of HCl in 10 l of demineralized water (this gives a mass ratio of 1,0:0,3:0,17). These quantities refer
to acids with a calculated concentration of 100 %. Depending on the mass concentrations of the acids
available, larger quantities of acid might have to be weighed out (e.g. if 36 % HCl is used, the quantity will
have to be 1,8/0,36 = 5,0 g). Analytical-grade acids shall be used.
Then prepare a solution with a pH of 2,5 by diluting the pH 1,5 solution with demineralized water by a
volume ratio of 1:10.
The pH 2,5 solution is the recommended solution. However, the more agressive pH 1,5 solution may be
used if agreed upon by the interested parties. If the pH 1,5 solution is used, this shall be mentioned in
the test report.
Before starting the exposure, check the pH-value of the solution using, for instance, pH test strips. If it
deviates by more than pH 0,3 from the theoretical value, replace the solution.
To avoid changes in the pH-value of the solution, store it in an airtight container.
Acid spraying may be carried out either manually or automatically (see 8.3).
6 Test specimens
6.1 General
All specimens shall be permanently marked.
NOTE The specimens will be delivered by a customer or specifically prepared for this test or taken from a
building component. Guidelines for preparation are given in ISO 1514. Guidelines for sampling are given in ISO 15528.
6.2 Specimen size
The specimen size shall be such that the condition of the specimens can be unambiguously ascertained
before and after the ADF test.
For vertically exposed specimens, due to the homogeneity of the damage, only relatively small areas
need to be evaluated. The minimum exposed surface area shall be 30 cm , with the shortest edge at
least 50 mm in length to reduce local variation in the acid deposition due e.g. to the spraying procedure
or edge effects.
6.3 Corrosion of the substrates
If possible, the substrate used should be the same as that to which the coating material will be applied
in practice. It shall be made, as far as possible (see below), from inert material.
If the possibility of corrosion or delamination at the edges cannot be excluded, suitable edge protection
should preferably be provided. Also, exposed edges and substrate surfaces that might react with acidic
precipitation (e.g. those made of non-stainless steels, aluminium, copper, zinc or concrete) should be
suitably protected.
ISO 15110:2013(E)
6.4 Reference specimens
The use of reference specimens is recommended for assessing the repeatability. Reference specimens of
the same type of material as employed in previous test series should be used.
If possible, these reference specimens should be made of a materials which do not change with time (i.e.
do not age) under normal storage conditions.
7 Designation of type of test
Exposures carried out under conditions corresponding to the subtropical climate of Jacksonville in
Florida (i.e. those of type J as defined in Table 1) are designated:
ISO 15110, ADF-J test
Exposures carried out under conditions corresponding to a moderate climate like that of central Europe
(i.e. those of type M as defined in Table 2) are designated:
ISO 15110, ADF-M test
8 Procedure
8.1 General
The ADF test may be performed in weathering devices as described in ISO 4892-1, ISO 4892-2 or ISO 4892-3.
If damage occurs unexpectedly fast, it is recommended that a check be carried out to determine if the
damage really results from the synergistic action of the acid and the weathering, by performing separate
acid and weathering exposures. For the acid-free weathering exposure, the same weathering conditions
should preferably be used. For the pure acid exposure, ISO 2812-5 or ISO 175 could be used.
NOTE 1 Testing in different types of weathering device can lead to different results.
NOTE 2 To differentiate between the special action of the acidic deposition and that of usual weathering
effects, it can be useful to expose a second set of specimens to the same weathering exposure in parallel, but
without acidic deposition.
The specimens may be mounted either in an open frame or on a solid backing.
NOTE 3 If backing is used, the presence of a space betwe
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