EN ISO 6270-2:2005

Paints and varnishes - Determination of resistance to humidity - Part 2: Procedure for exposing test specimens in condensation-water atmospheres (ISO 6270-2:2005)

ISO 6270-2:2005 describes the general conditions and procedures which need to be observed when testing coated test specimens in constant condensation-water atmospheres or in alternating condensation-water atmospheres, in order to ensure that the results of tests carried out in different laboratories are reproducible.
It does not cover the shape and preparation of the test specimens, the duration of the test or the assessment of the test results.

Beschichtungsstoffe - Bestimmung der Beständigkeit gegen Feuchtigkeit - Teil 2: Verfahren zur Beanspruchung von Proben in Kondenswasserklimaten (ISO 6270-2:2005)

Dieser Teil von ISO 6270 beschreibt die allgemeinen Bedingungen, die bei der Beanspruchung von Probenkörper in Kondenswasser-Konstantklimaten oder Kondenswasser-Wechselklimaten eingehalten werden müssen, damit bei Prüfungen in verschiedenen Laboratorien die Ergebnisse vergleichbar sind.
ANMERKUNG   Probenform, Probenvorbereitung, Prüfdauer und Beurteilung der Ergebnisse sind nicht Gegenstand dieses Teiles von ISO 6270.

Peinture et vernis - Détermination de la résistance à l'humidité - Partie 2: Mode opératoire d'exposition d'éprouvettes dans des atmosphères de condensation d'eau (ISO 6270-2:2005)

L'ISO 6270-2:2005 décrit les conditions et modes opératoires généraux qui doivent être respectés lors de l'essai, sur éprouvettes revêtues, en atmosphères de condensation d'eau constante ou alternée, afin de s'assurer de la reproductibilité des résultats d'essais réalisés dans différents laboratoires.
La forme et la préparation des éprouvettes, la durée de l'essai et l'évaluation des résultats d'essai ne sont pas traitées dans l'ISO 6270-2:2005.

Barve in laki – Ugotavljanje odpornosti proti vlagi – 2. del: Postopki preskušanja vzorcev, izpostavljenih kondenzu v vlažni komori (ISO 6270-2:2005)

General Information

• Status: Withdrawn
• Publication Date: 30-Jun-2005
• Withdrawal Date: 30-Jan-2018
• ICS: 87.040 - Paints and varnishes
• Technical Committee: CEN/TC 139 - Paints and varnishes
• Drafting Committee: CEN/TC 139 - Paints and varnishes
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Completion Date: 31-Jan-2018
• Ref Project: SIST EN ISO 6270-2:2005 - Paints and varnishes - Determination of resistance to humidity - Part 2: Procedure for exposing test specimens in condensation-water atmospheres (ISO 6270-2:2005)

Relations

• Replaced By: EN ISO 6270-2:2018 - Paints and varnishes - Determination of resistance to humidity - Part 2: Condensation (in-cabinet exposure with heated water reservoir) (ISO 6270-2:2017)
• Effective Date: 07-Feb-2018

Standards Content (Sample)

SLOVENSKI STANDARD
01-december-2005
Barve in laki – Ugotavljanje odpornosti proti vlagi – 2. del: Postopki preskušanja
vzorcev, izpostavljenih kondenzu v vlažni komori (ISO 6270-2:2005)
Paints and varnishes - Determination of resistance to humidity - Part 2: Procedure for
exposing test specimens in condensation-water atmospheres (ISO 6270-2:2005)
Beschichtungsstoffe - Bestimmung der Beständigkeit gegen Feuchtigkeit - Teil 2:
Verfahren zur Beanspruchung von Proben in Kondenswasserklimaten (ISO 6270-
2:2005)
Peinture et vernis - Détermination de la résistance a l'humidité - Partie 2: Mode
opératoire d'exposition d'éprouvettes dans des atmospheres de condensation d'eau (ISO
6270-2:2005)
Ta slovenski standard je istoveten z: EN ISO 6270-2:2005
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 6270-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2005
ICS 87.040
English Version
Paints and varnishes - Determination of resistance to humidity -
Part 2: Procedure for exposing test specimens in condensation-
water atmospheres (ISO 6270-2:2005)
Peinture et vernis - Détermination de la résistance à Beschichtungsstoffe - Bestimmung der Beständigkeit
l'humidité - Partie 2: Méthode d'exposition d'éprouvettes à gegen Feuchtigkeit - Teil 2: Verfahren zur Beanspruchung
des atmosphères d'eau de condensation (ISO 6270- von Proben in Kondenswasserklimaten (ISO 6270-2:2005)
2:2005)
This European Standard was approved by CEN on 20 June 2005.
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 Central Secretariat 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 Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 6270-2:2005: E
worldwide for CEN national Members.

Foreword
This document (EN ISO 6270-2:2005) 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 January 2006, and conflicting national
standards shall be withdrawn at the latest by January 2006.

According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: Austria, Belgium,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary,
Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

Endorsement notice
The text of ISO 6270-2:2005 has been approved by CEN as EN ISO 6270-2:2005 without any
modifications.
INTERNATIONAL ISO
STANDARD 6270-2
First edition
2005-07-01
Paints and varnishes — Determination of
resistance to humidity —
Part 2:
Procedure for exposing test specimens in
condensation-water atmospheres
Peinture et vernis — Détermination de la résistance à l'humidité —
Partie 2: Méthode d'exposition d'éprouvettes à des atmosphères d'eau
de condensation
Reference number
ISO 6270-2:2005(E)
©
ISO 2005
ISO 6270-2:2005(E)
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ii © ISO 2005 – All rights reserved

ISO 6270-2:2005(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Designation . 1
4 General. 1
5 Apparatus . 2
6 Procedure . 4
7 Evaluation. 5
8 Test report . 6

ISO 6270-2:2005(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 6270-2 was prepared by Technical Committee ISO/TC 35, Paints and varnishes, Subcommittee SC 9,
General test methods for paints and varnishes.
ISO 6270 consists of the following parts, under the general title Paints and varnishes — Determination of
resistance to humidity:
 Part 1: Continuous condensation
 Part 2: Procedure for exposing test specimens in condensation-water atmospheres
iv © ISO 2005 – All rights reserved

ISO 6270-2:2005(E)
Introduction
ISO 6270 is intended to give consistent conditions and procedures for the conditioning of pre-prepared test
specimens which are to be evaluated for defects which may develop when they are subjected to humid
ambient atmospheres such as constant condensation-water atmospheres or alternating condensation-water
atmospheres.
The tests are designed to clarify the behaviour of the test specimens in humid ambient atmospheres, and to
pinpoint any defects in the protection of the test specimens against corrosion. The testing of coatings in these
atmospheres does not necessarily give lifetime prediction data.
After conditioning, the test specimens are evaluated either in accordance with agreed International Standards,
such as the appropriate part(s) of ISO 4628, Paints and varnishes — Evaluation of degradation of coatings —
Designation of quantity and size of defects, and of intensity of uniform changes in appearance, or by
procedures agreed between the interested parties.
INTERNATIONAL STANDARD ISO 6270-2:2005(E)

Paints and varnishes — Determination of resistance to humidity —
Part 2:
Procedure for exposing test specimens in condensation-water
atmospheres
1 Scope
This part of ISO 6270 describes the general conditions and procedures which need to be observed when
testing coated test specimens in constant condensation-water atmospheres or in alternating condensation-
water atmospheres, in order to ensure that the results of tests carried out in different laboratories are
reproducible.
NOTE The shape and preparation of the test specimens, the duration of the test and the assessment of the test
results are not covered in this part of ISO 6270.
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.
ISO 3270, Paints and varnishes and their raw materials — Temperatures and humidities for conditioning and
testing
3 Designation
The condensation-water test atmospheres are designated as follows:
Test atmosphere CH Condensation atmosphere with constant humidity
AHT Condensation atmosphere with alternating humidity and air temperature
AT Condensation atmosphere with alternating air temperature
4 General
Condensation-water test atmospheres promote the condensation of atmospheric humidity on the surfaces of
test specimens, the temperatures of which are lower than the temperature of the saturated air in the climatic
chamber, due to radiation onto the chamber walls or to the cooling of the test specimen.
The atmospheric temperature in the climatic chamber during the condensation process described in this part
of ISO 6270 is 40 °C.
ISO 6270-2:2005(E)
The condensation-water test atmosphere may be either a constant-humidity (CH) or an alternating (AHT, AT)
atmosphere. If, in addition to the action of the condensation water, the change in atmospheric temperature
and the change in atmospheric humidity have an important effect on the test specimens, an alternating
atmosphere should be chosen.
The quantity of condensation water formed on the surface of the coating may also exercise an important
influence on the action of the water; this quantity will be affected by the ambient temperature in the installation
room or by the cooling of the test specimen.
The condensate which drips off the test specimens consists of condensation water and also in some instances
of solid and liquid constituents of the coating dissolved in the condensation water or mixed with it.
Reproducible results can only be expected if the test procedure and test conditions remain constant for a
series of tests.
In the case of alternating atmospheres, a cycle time of 24 h shall be used as a general rule. A shorter cycle
time (12 h or 16 h) and a correspondingly shortened time for the two test periods may be used for the AT test
atmosphere.
A summary of test atmospheres, cycle durations and conditions is given in Table 1. Other cycles may be used
by agreement between the interested parties.
Table 1 — Condensation test atmospheres
Conditions in working chamber after reaching
Test atmosphere Cycle duration
equilibrium
Air
Type Code Test period(s) Total Relative humidity
temperature
Constant-humidity
From warm-up to end of Approx. 100 % with
condensation CH (40 ± 3) °C
exposure condensation on test specimens
atmosphere
Approx. 100 % with
8 h including warm-up (40 ± 3) °C
condensation on test specimens
With alternation
of humidity and AHT 24 h
16 h including c
...