ISO 6270-3:2018

INTERNATIONAL ISO
STANDARD 6270-3
First edition
2018-01
Paints and varnishes — Determination
of resistance to humidity —
Part 3:
Condensation (in-cabinet exposure
with heated, bubbling water
reservoir)
Peintures et vernis — Détermination de la résistance à l'humidité —
Partie 3: Condensation (exposition dans une étuve avec barboteur
chauffé)
Reference number
©
ISO 2018
© ISO 2018
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ii © ISO 2018 – All rights reserved

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Limitations . 2
6 Apparatus . 2
7 Test specimens. 3
7.1 Material and dimensions . 3
7.2 Preparation and coating . . 4
7.3 Drying and conditioning . 4
7.4 Thickness of coating . 4
8 Procedure. 4
8.1 Arrangement of test specimens . 4
8.2 Start-up . 5
8.3 Set of test specimens . 5
8.4 Duration of test . 5
9 Evaluation . 5
10 Precision . 5
11 Test report . 5
Bibliography . 7
Foreword
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electrotechnical standardization.
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described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
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This document was prepared by Technical Committee ISO/TC 35, Paints and varnishes, Subcommittee
SC 9, General test methods for paints and varnishes.
A list of all parts in the ISO 6270 series can be found on the ISO website.
iv © ISO 2018 – All rights reserved

Introduction
This document is intended to give consistent conditions and procedures for the conditioning of pre-
prepared test specimens which are to be evaluated for defects which can 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 documents, such as the
appropriate part(s) of ISO 4628, or by procedures agreed between the interested parties.
INTERNATIONAL STANDARD ISO 6270-3:2018(E)
Paints and varnishes — Determination of resistance to
humidity —
Part 3:
Condensation (in-cabinet exposure with heated, bubbling
water reservoir)
1 Scope
This document specifies the general conditions and procedures to be observed when testing coated
test specimens in constant 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 document.
2 Normative references
The following
...