ISO 6270-1:1998
(Main)Paints and varnishes — Determination of resistance to humidity — Part 1: Continuous condensation
Paints and varnishes — Determination of resistance to humidity — Part 1: Continuous condensation
Peintures et vernis — Détermination de la résistance à l'humidité — Partie 1: Condensation continue
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INTERNATIONAL
IS0
STANDARD
6270-I
First edition
1998-04-01
Paints and varnishes - Determination of
resistance to humidity -
Part 1:
Continuous condensation
Pein fur-es et vernis - Dktermination de la rksistance 2 I’humiditk -
Partie I: Condensation continue
Reference number
IS0 6270-1:1998(E)
---------------------- Page: 1 ----------------------
IS0 6270-l : 1998(E)
Page
Contents
1
Scope .
I
Normative references .
2
Principle .
2
.........................................
Required supplementary information
2
Apparatus .
2
Sampling .
3
Test panels .
............................................. 3
Method of exposure of test panels
3
.........................................................
Examination of test panels
Precision .
4
Test report .
5
Annex A (normative) Rewired supplementary information -.-.
0 IS0 1998
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced
or utilized in any form or by any means, electronic or mechanical, including photocopying and
microfilm, without permission in writing from the publisher.
International Organization for Standardization
Case postale 56 l CH-1211 Geneve 20 l Switzerland
central @? iso.ch
Internet
x.400 c=ch; a=400net; p=iso; o=isocs; s=central
Printed in Switzerland
---------------------- Page: 2 ----------------------
IS0 6270-l :1998(E)
@ IS0
Foreword
IS0 (the International Organization for Standardization) is a worldwide
federation of national standards bodies (IS0 member bodies). The work of
preparing International Standards is normally carried out through IS0
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. IS0
collaborates closely with the International Electrotechnical Commission
(IEC) on all matters of electrotechnical standardization.
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.
International Standard IS0 6270-I was prepared by Technical Committee
ISOflC 35, Paints and varnishes, Subcommittee 9, Genera/ test methods
for paints and varnishes.
It cancels and replaces IS0 6270:1980, of which it constitutes a minor
technical revision.
It differs from IS0 6270:1980 in that the angle of the panels to the
horizontal has been changed from (15 + 5)” to (60 & 5)” and the
temperature of the air below the panels is maintained at (38 If: 2) OC rather
than at that of the water itself. Work has shown that the results do not differ
substantially between the two sets of conditions.
At the date of publication, IS0 6270 consisted of only one part, under the
general title Paints and varnishes - Determination of resistance to
humidity:
- Part I: Continuous condensation
Other parts will be added at a later date. One of these parts will be
IS0 11503:1995, Paints and varnishes - Determination of resistance to
humidity (intermittent condensation), which will be renumbered into this
series.
Annex A forms an integral part of this part of IS0 6270.
. . .
Ill
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This page intentionally left blank
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INTERNATIONAL STANDARD @ Iso IS0 6270-l : 1998(E)
Paints and varnishes
- Determination of resistance to humidity -
Part 1:
Continuous condensati on
1 Scope
This part of IS0 6270 is one of a series of standards dealing with the sampling and testing of paints, varnishes and
related products.
It specifies a method for determining the resistance of paint films, paints systems and related products to conditions
of high humidity in accordance with the requirements of coating or product specifications.
The method is applicable to coatings both on porous substrates such as wood, plaster and plasterboard and on
non-porous substrates such as metal. It provides an indication of the performance likely to be obtained under
severe conditions of exposure where continuous condensation occurs on the surface.
The procedure may reveal failures of the coating (including blistering, staining, softening, wrinkling and
embrittlement) and deterioration of the substrate.
2 Normative references
The following standards contain provisions which, through reference in this text, constitute provisions of this part of
IS0 6270. At the time of publication, the editions indicated were valid. All standards are subject to revision, and
parties to agreements based on this part of IS0 6270 are encouraged to investigate the possibility of applying the
most recent editions of the standards indicated below. Members of IEC and IS0 maintain registers of currently valid
International Standards.
IS0 1512:1991, Paints and varnishes - Sampling of products in liquid or paste form.
Paints and varnishes - Examination and preparation of samples for testing.
IS0 1513:1992,
IS0 1514:1993, Paints and varnishes - Standard panels for testing.
IS0 2808:1997, Paints and varnishes - Determination of film thickness.
IS0 3270:1984, Paints and varnishes and their raw materials - Temperatures and humidities for conditioning and
testing.
IS0 3696:1987, Water for analytical laboratory use - Specification and test methods.
IS0 4628-l :I 982, Paints and varnishes - Evaluation of degradation of paint coatings - Designation of intensity,
quantity and size of common types of defect - Part 1: General principles and rating schemes.
IS0 4628-2:1982, Paints and varnishes - Evaluation of degradation of paint coatings - Designation of intensity,
quantity and size of common types of defect - Part 2: Designation of degree of blistering.
IS0 4628-3:1982, Paints and varnishes - Evaluation of degradation of paint coatings - Designation of intensity,
quantity and size of common types of defect - Part 3: Designation of degree of rusting.
1
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@ IS0
IS0 6270-l : 1998(E)
Evaluation of degradation of paint coatings - Designation of intensity,
IS0 4628-4:1982, Paints and varnishes -
Part 4: Designation of degree of cracking.
quantity and size of common types of defect -
Evaluation of degradation of paint coatings - Designation of intensity,
IS0 4628-5:1982, Paints and varnishes -
Part 5: Designation of degree of flaking.
quantity and size of common types of defect -
3 Principle
A coated test panel is exposed to continuous condensation and the effects of the exposure are evaluated by criteria
agreed in advance between the interested parties, these criteria usually being of a subjective nature.
4 Required supplementary information
For any particular application, the test method specified in this part of IS0 6270 needs to be completed by
supplementary information. The items of supplementary information are given in annex A.
5 Apparatus
5.1 The apparatus shall be constructed of chemically resistant materials and consist essentially of an electrically
heated water bath, designed so that the cover is formed by the blanking panels (see 5.5) or test panels, the upper
faces of which are exposed to the environment (see 5.2). It is preferable for the apparatus to be designed so that it
will accommodate test panels of size 150 mm x 100 mm.
5.2 The sides of the water bath shall be suitably insulated to ensure that the temperature in the air space above
the water when measured approximately 25 mm below the test panels is main
...
INTERNATIONAL ISO
STANDARD 6270-1
First edition
1998-04-01
Paints and varnishes — Determination of
resistance to humidity —
Part 1:
Continuous condensation
Peintures et vernis — Détermination de la résistance à l'humidité —
Partie 1: Condensation continue
A
Reference number
ISO 6270-1:1998(E)
---------------------- Page: 1 ----------------------
ISO 6270-1:1998(E)
Contents Page
1 Scope . 1
2 Normative references. 1
3 Principle. 2
4 Required supplementary information . 2
5 Apparatus. 2
Sampling .
6 2
Test panels.
7 3
8 Method of exposure of test panels. 3
9 Examination of test panels . 3
10 Precision . 4
11 Test report. 4
Annex A (normative) Required supplementary information. 5
© ISO 1998
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced
or utilized in any form or by any means, electronic or mechanical, including photocopying and
microfilm, without permission in writing from the publisher.
International Organization for Standardization
Case postale 56 • CH-1211 Genève 20 • Switzerland
Internet central@iso.ch
X.400 c=ch; a=400net; p=iso; o=isocs; s=central
Printed in Switzerland
ii
---------------------- Page: 2 ----------------------
©
ISO ISO 6270-1:1998(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.
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.
International Standard ISO 6270-1 was prepared by Technical Committee
ISO/TC 35, Paints and varnishes, Subcommittee 9, General test methods
for paints and varnishes.
It cancels and replaces ISO 6270:1980, of which it constitutes a minor
technical revision.
It differs from ISO 6270:1980 in that the angle of the panels to the
horizontal has been changed from (15 ± 5)° to (60 ± 5)° and the
temperature of the air below the panels is maintained at (38 ± 2) °C rather
than at that of the water itself. Work has shown that the results do not differ
substantially between the two sets of conditions.
At the date of publication, ISO 6270 consisted of only one part, under the
general title Paints and varnishes – Determination of resistance to
humidity:
– Part 1: Continuous condensation
Other parts will be added at a later date. One of these parts will be
ISO 11503:1995, Paints and varnishes – Determination of resistance to
humidity (intermittent condensation), which will be renumbered into this
series.
Annex A forms an integral part of this part of ISO 6270.
iii
---------------------- Page: 3 ----------------------
©
INTERNATIONAL STANDARD ISO ISO 6270-1:1998(E)
Paints and varnishes — Determination of resistance to humidity —
Part 1:
Continuous condensation
1 Scope
This part of ISO 6270 is one of a series of standards dealing with the sampling and testing of paints, varnishes and
related products.
It specifies a method for determining the resistance of paint films, paints systems and related products to conditions
of high humidity in accordance with the requirements of coating or product specifications.
The method is applicable to coatings both on porous substrates such as wood, plaster and plasterboard and on
non-porous substrates such as metal. It provides an indication of the performance likely to be obtained under
severe conditions of exposure where continuous condensation occurs on the surface.
The procedure may reveal failures of the coating (including blistering, staining, softening, wrinkling and
embrittlement) and deterioration of the substrate.
2 Normative references
The following standards contain provisions which, through reference in this text, constitute provisions of this part of
ISO 6270. At the time of publication, the editions indicated were valid. All standards are subject to revision, and
parties to agreements based on this part of ISO 6270 are encouraged to investigate the possibility of applying the
most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid
International Standards.
Paints and varnishes – Sampling of products in liquid or paste form.
ISO 1512:1991,
ISO 1513:1992, Paints and varnishes – Examination and preparation of samples for testing.
ISO 1514:1993, Paints and varnishes – Standard panels for testing.
ISO 2808:1997, Paints and varnishes – Determination of film thickness.
ISO 3270:1984, Paints and varnishes and their raw materials – Temperatures and humidities for conditioning and
testing.
ISO 3696:1987, Water for analytical laboratory use – Specification and test methods.
ISO 4628-1:1982, Paints and varnishes – Evaluation of degradation of paint coatings – Designation of intensity,
quantity and size of common types of defect – Part 1: General principles and rating schemes.
ISO 4628-2:1982, Paints and varnishes – Evaluation of degradation of paint coatings – Designation of intensity,
quantity and size of common types of defect – Part 2: Designation of degree of blistering.
ISO 4628-3:1982, Paints and varnishes – Evaluation of degradation of paint coatings – Designation of intensity,
quantity and size of common types of defect – Part 3: Designation of degree of rusting.
1
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©
ISO
ISO 6270-1:1998(E)
ISO 4628-4:1982, Paints and varnishes - Evaluation of degradation of paint coatings – Designation of intensity,
quantity and size of common types of defect – Part 4: Designation of degree of cracking.
ISO 4628-5:1982, Paints and varnishes - Evaluation of degradation of paint coatings – Designation of intensity,
quantity and size of common types of defect – Part 5: Designation of degree of flaking.
3 Principle
A coated test panel is exposed to continuous condensation and the effects of the exposure are evaluated by criteria
agreed in advance between the interested parties, these criteria usually being of a subjective nature.
4 Required supplementary information
For any particular application, the test method specified in this part of ISO 6270 needs to be completed by
supplementary information. The items of supplementary information are given in annex A.
5 Apparatus
5.1 The apparatus shall be constructed of chemically resistant materials and consist essentially of an electrically
heated water bath, designed so that the cover is formed by the blanking panels (see 5.5) or test panels, the upper
faces of which are exposed to the environment (see 5.2). It is preferable for the apparatus to be designed so that it
will accommodate test panels of size 150 mm x 100 mm.
5.2 The sides of the water bath shall be suitably insulated to ensure that the temperature in the air space above
the water when measured approximately 25 mm below th
...
NORME ISO
INTERNATIONALE 6270-1
Première édition
1998-04-01
Peintures et vernis — Détermination de la
résistance à l'humidité —
Partie 1:
Condensation continue
Paints and varnishes — Determination of resistance to humidity —
Part 1: Continuous condensation
A
Numéro de référence
ISO 6270-1:1998(F)
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ISO 6270-1:1998(F)
Sommaire Page
1 Domaine d'application . 1
2 Références normatives . 1
3 Principe. 2
4 Informations supplémentaires requises . 2
5 Appareillage . 2
6 Échantillonnage . 3
7 Panneaux d'essai . 3
8 Méthode d'exposition des panneaux d'essai . 4
9 Examen des panneaux d'essai . 4
10 Fidélité . 5
11 Rapport d'essai . 5
Annexe A (normative) Informations supplémentaires requises . 6
© ISO 1998
Droits de reproduction réservés. Sauf prescription différente, aucune partie de cette publi-
cation ne peut être reproduite ni utilisée sous quelque forme que ce soit et par aucun pro-
cédé, électronique ou mécanique, y compris la photocopie et les microfilms, sans l'accord
écrit de l'éditeur.
Organisation internationale de normalisation
Case postale 56 • CH-1211 Genève 20 • Suisse
Internet central@iso.ch
X.400 c=ch; a=400net; p=iso; o=isocs; s=central
Imprimé en Suisse
ii
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©
ISO ISO 6270-1:1998(F)
Avant-propos
L'ISO (Organisation internationale de normalisation) est une fédération
mondiale d'organismes nationaux de normalisation (comités membres de
l'ISO). L'élaboration des Normes internationales est en général confiée aux
comités techniques de l'ISO. Chaque comité membre intéressé par une
étude a le droit de faire partie du comité technique créé à cet effet. Les
organisations internationales, gouvernementales et non gouvernementales,
en liaison avec l'ISO participent également aux travaux. L'ISO collabore
étroitement avec la Commission électrotechnique internationale (CEI) en
ce qui concerne la normalisation électrotechnique.
Les projets de Normes internationales adoptés par les comités techniques
sont soumis aux comités membres pour vote. Leur publication comme
Normes internationales requiert l'approbation de 75 % au moins des
comités membres votants.
La Norme internationale ISO 6270-1 a été élaborée par le comité technique
ISO/TC 35, Peintures et vernis, sous-comité SC 9, Méthodes générales
d'essais des peintures et vernis.
Elle annule et remplace l’ISO 6270:1980, dont elle constitue une révision
technique mineure.
Elle diffère de l’ISO 6270:1980 par le fait que l'angle des panneaux par
rapport à l’horizontale a été modifié; il est désormais de (60 ± 5)° au lieu de
(15 ± 5)°, et c'est la température de l'air au dessous des panneaux, plutôt
que celle de l'eau elle-même, qui est maintenue à (38 ± 2) °C. Des travaux
ont montré que les résultats ne diffèrent pas fondamentalement entre les
deux conditions.
À la date de publication, l'ISO 6270 comprenait une seule partie, présentée
sous le titre général Peintures et vernis — Détermination de la résistance à
l'humidité:
— Partie 1: Condensation continue
D'autres parties seront ajoutées ultérieurement. L'une de ces parties sera
l'ISO 11503:1995, Peintures et vernis — Détermination de la résistance à
l’humidité (par condensation intermittente), qui sera renumérotée pour être
intégrée dans cette série.
L'annexe A fait partie intégrante de la présente partie de l'ISO 6270.
iii
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©
NORME INTERNATIONALE ISO ISO 6270-1:1998(F)
Peintures et vernis — Détermination de la résistance à l'humidité
Partie 1:
Condensation continue
1 Domaine d'application
La présente partie de l'ISO 6270 fait partie d'une série de normes traitant de l'échantillonnage et des
essais relatifs aux peintures, vernis et produits assimilés.
Elle prescrit une méthode pour la détermination de la résistance d'un feuil de peinture, de systèmes de
peinture et de produits assimilés à des conditions de forte humidité selon les exigences du revêtement
ou les spécifications du produit.
La méthode est applicable aux revêtements aussi bien sur subjectiles poreux, tels que le bois, le plâtre
et les plaques de plâtre, que sur subjectiles non poreux, tels que le métal. Elle donne une indication sur
la performance susceptible d'être obtenue dans des conditions sévères d'exposition lorsqu'une
condensation continue se produit à la surface.
Le mode opératoire peut faire apparaître des défectuosités du revêtement (comprenant cloquage,
tachage, ramollissement, frisage et fragilisation) et une détérioration du subjectile.
2 Références normatives
Les normes suivantes contiennent des dispositions qui, par suite de la référence qui en est faite,
constituent des dispositions valables pour la présente partie de l’ISO 6270. Au moment de la publication,
les éditions indiquées étaient en vigueur. Toute norme est sujette à révision et les parties prenantes des
accords fondés sur la présente partie de l’ISO 6270 sont invitées à rechercher la possibilité d'appliquer
les éditions les plus récentes des normes indiquées ci-après. Les membres de la CEI et de l'ISO
possèdent le registre des Normes internationales en vigueur à un moment donné.
Peintures et vernis — Échantillonnage des produits sous forme
ISO 1512: 1991,
liquide ou en pâte.
Peintures et vernis — Examen et préparation des échantillons pour
ISO 1513: 1992,
essais.
Peintures et vernis — Panneaux normalisés pour essais.
ISO 1514: 1993,
ISO 2808: 1997, Peintures et vernis — Détermination de l'épaisseur du feuil.
ISO 3270: 1984, Peintures et vernis et leurs matières premières — Températures et
humidités pour le conditionnement et l'essai.
ISO 3696: 1987, Eau pour laboratoire à usage analytique — Spécification et
méthodes d'essai.
1
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©
ISO 6270-1:1998(F) ISO
ISO 4628-1: 1982, Peintures et vernis — Évaluation de la dégradation des surfaces
peintes — Désignation de l'intensité, de la quantité et de la
dimension des types courants de défauts — Partie 1: Principes
généraux et modes de cotation.
ISO 4628-2: 1982, Peintures et vernis — Évaluation de la dégradation des surfaces
peintes — Désignation de l'intensité, de la quantité et de la
dimension des types courants de défauts — Partie 2: Désignation
du degré de cloquage.
ISO 4628-3: 1982, Peintures et vernis — Évaluation de la dégradation des surfaces
peintes — Désignation de l'intensité, de la quantité et de la
dimension des types courants de défauts — Partie 3: Désignation
du degré d'enrouillement.
ISO 4628-4: 1982, Peintures et vernis — Évaluation de la dégradation des surfaces
peintes — Désignation de l'intensité, de la quantité et de la
dimension des types courants de défauts — Partie 4: Désignation
du degré de craquelage.
Peintures et vernis — Évaluation de la dégradation des surfaces
ISO 4628-5: 1982,
peintes — Désignation de l'intensité, de la quantité et de la
dimension des types courants de défauts — Partie 5: Désignation
du degré d'écaillage.
3 Principe
Un panneau d'essai revêtu est exposé à une condensation continue, et les effets de l'exposition sont
évalués par des critères agréés par avance entre les parties intéressées, ces critères étant
habituellement de nature subjective.
4 Informations supplémentaires requises
Pour toute application particulière, la méthode d'essai prescrite dans la présente partie de l’ISO 6270
doit être complétée par des informations supplémentaires. Les éléments d'information supplémentaire
sont donnés dans l'annexe A.
5 Appareillage
5.1 L'appareillage doit être construit en un matériau chimiquement résistant et consister
essentiellement en un bain d'eau chauffé électriquement et conçu de manière que le couvercle soit
formé par les panneaux non revêtus (voir 5.5) ou les panneaux d'essai ayant leurs surfaces supérieures
exposées vers l'environnement (voir 5.2). Il est recommandé de concevoir l'appareillage de manière que
des panneaux d'essai de dimensions 150 mm x 100 mm puissent y être adaptés.
5.2 Les parois du bain doivent être convenablement calorifugées afin que la température de l'espace
d'air au-dessus de l'eau, mesurée à environ 25 mm au-dessous des panneaux d'essai, soit
uniformément à (38 ± 2) °C, sauf spécifications contraires [voir annexe A, point e)].
NOT
...
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