Amendment 1 - Environmental testing - Part 2-10: Tests - Test J and guidance: Mould growth

Amendement 1 - Essais d'environnement - Partie 2-10: Essais - Essai J et guide: Moisissures

General Information

Publication Date
Current Stage
PPUB - Publication issued
Completion Date
Ref Project

Buy Standard

IEC 60068-2-10:2005/AMD1:2018 - Amendment 1 - Environmental testing - Part 2-10: Tests - Test J and guidance: Mould growth
English and French language
8 pages
sale 15% off
sale 15% off

Standards Content (sample)

IEC 60068-2-10
Edition 6.0 2018-04
Environmental testing –
Part 2-10: Tests – Test J and guidance: Mould growth
Essais d’environnement –
Partie 2-10: Essais – Essai J et guide: Moisissures
IEC 60068-2-10:2005-06/AMD1:2018-04(en-fr)
---------------------- Page: 1 ----------------------
Copyright © 2018 IEC, Geneva, Switzerland

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

either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC

copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or

your local IEC member National Committee for further information.

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite

ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie

et les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des

questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez

les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.

IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé
CH-1211 Geneva 20
About the IEC

The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes

International Standards for all electrical, electronic and related technologies.
About IEC publications

The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the

latest edition, a corrigenda or an amendment might have been published.
IEC Catalogue - Electropedia -

The stand-alone application for consulting the entire The world's leading online dictionary of electronic and

bibliographical information on IEC International Standards, electrical terms containing 21 000 terms and definitions in

Technical Specifications, Technical Reports and other English and French, with equivalent terms in 16 additional

documents. Available for PC, Mac OS, Android Tablets and languages. Also known as the International Electrotechnical

iPad. Vocabulary (IEV) online.

IEC publications search - IEC Glossary -

The advanced search enables to find IEC publications by a 67 000 electrotechnical terminology entries in English and

variety of criteria (reference number, text, technical French extracted from the Terms and Definitions clause of

committee,…). It also gives information on projects, replaced IEC publications issued since 2002. Some entries have been

and withdrawn publications. collected from earlier publications of IEC TC 37, 77, 86 and

IEC Just Published -

Stay up to date on all new IEC publications. Just Published IEC Customer Service Centre -

details all new publications released. Available online and If you wish to give us your feedback on this publication or

also once a month by email. need further assistance, please contact the Customer Service

A propos de l'IEC

La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des

Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications IEC

Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la

plus récente, un corrigendum ou amendement peut avoir été publié.
Catalogue IEC - Electropedia -
Application autonome pour consulter tous les renseignements
Le premier dictionnaire en ligne de termes électroniques et
bibliographiques sur les Normes internationales,
électriques. Il contient 21 000 termes et définitions en anglais
Spécifications techniques, Rapports techniques et autres
et en français, ainsi que les termes équivalents dans 16
documents de l'IEC. Disponible pour PC, Mac OS, tablettes
langues additionnelles. Egalement appelé Vocabulaire
Android et iPad.
Electrotechnique International (IEV) en ligne.
Recherche de publications IEC -
Glossaire IEC -
67 000 entrées terminologiques électrotechniques, en anglais

La recherche avancée permet de trouver des publications IEC et en français, extraites des articles Termes et Définitions des

en utilisant différents critères (numéro de référence, texte, publications IEC parues depuis 2002. Plus certaines entrées

comité d’études,…). Elle donne aussi des informations sur les antérieures extraites des publications des CE 37, 77, 86 et

projets et les publications remplacées ou retirées. CISPR de l'IEC.

IEC Just Published - Service Clients -

Restez informé sur les nouvelles publications IEC. Just Si vous désirez nous donner des commentaires sur cette

Published détaille les nouvelles publications parues. publication ou si vous avez des questions contactez-nous:

Disponible en ligne et aussi une fois par mois par email.
---------------------- Page: 2 ----------------------
IEC 60068-2-10
Edition 6.0 2018-04
Environmental testing –
Part 2-10: Tests – Test J and guidance: Mould growth
Essais d’environnement –
Partie 2-10: Essais – Essai J et guide: Moisissures
ICS 19.040 ISBN 978-2-8322-5513-1

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 60068-2-10:2005/AMD1:2018
© IEC 2018
This amendment has been prepared by IEC technical committee 104: Environmental
conditions, classification and methods of test.
The text of this amendment is based on the following documents:
CDV Report on voting
104/740/CDV 104/790/RVC

Full information on the voting for the approval of this amendment can be found in the report

on voting indicated in the above table.

The committee has decided that the contents of this amendment and the base publication will

remain unchanged until the stability date indicated on the IEC website under

"" in the data related to the specific publication. At this date, the

publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
3 General description
Replace the existing Clause 3 with the following new Clause 3:
3 General description
3.1 Background

Under certain climatic and environmental conditions, micro-organisms may settle on and

colonize the surface of electrotechnical equipment. Their presence or their metabolic products

may not only damage the equipment itself, but may also affect the equipment’s operability and

serviceability. The actions of micro-organisms on equipment are influenced by two different

processes: direct action in which the deterioration of material serve as a nutritive substance

for the growth of the micro-organisms and indirect action in which the metabolic products of

the micro-organisms generate deterioration.

The preferred method for controlling the effects of micro-organisms is by the selection of

materials that do not promote growth. Also acceptable is the treatment, or hermetic sealing, of

potentially vulnerable materials and components. Additionally, equipment may not need to be

evaluated if it is stored and/or operated throughout its entire life, in conditions unlikely to

encourage the growth of micro-organisms. Only if these cannot be achieved is it usually

necessary to demonstrate the resistance of complete or partial equipment by testing.

The test procedures and severities of this document are most commonly used to evaluate the

resistance of complete or partial equipment, to the damaging effects due to the presence of

---------------------- Page: 4 ----------------------
IEC 60068-2-10:2005/AMD1:2018 – 3 –
© IEC 2018

micro-organisms and their metabolic products. Testing of entire equipment is usually

necessary if it is critical that performance be demonstrated after exposure to adverse

temperature/humidity conditions that would support the growth of micro-organisms.

An alternative approach which is sometimes used is to consider only the individual materials

of which an equipment is composed. This alternative approach may be particularly relevant

when the primary concern is with deterioration of structural materials of the equipment rather

than its operability and serviceability. In such cases, individual materials may need to be

evaluated, only if previous evidence exists as to its resistance to the effects of growth of

micro-organisms. The testing procedures in ISO 846 are essentially the equivalent of those

set out in this document but applied to specimens comprising samples of material.

Some materials can, when buried in natural soil that has a water holding capacity, exhibit

significant degradation in structural characteristics. The evaluation of such conditions are not

included in this document. However, should the evaluation of material be required, Method D

(soil-burial test) in ISO 846 is suggested. Similarly, if it is necessary to evaluate a material’s

resistance to biological growth, Method C (resistance to bacteria) in ISO 846 is suggested.

3.2 Selection of test procedure

The test procedures of this document involves exposing electrotechnical products to the

action of a selection of test strains of mould spores for a period of incubation under conditions

which promote spore germination and the growth of mould. At the end of the exposure, the

specimens are assessed for deterioration by visual examination and, if applicable, for any

change in mass or other physical properties.
This document contains two basic test procedures Variant 1 and Variant 2:

a) In Variant 1, specimens are inoculated with a mixed suspension of mould spores in the

presence of an incomplete nutritive medium (without a carbon source). The mould can

only grow at the expense of the specimen. If the specimens contain no nutritive

component, the fungi cannot develop mycelia and there is no deterioration of the material.

b) In Variant 2, specimens are inoculated with a mixed suspension of mould spores in a

(complete) nutritive solution, i.e. with a carbon source. Even if the specimen does not

contain any nutritive elements, the mould can grow over the specimen and their metabolic

products can attack the material. Any inhibition of the growth on the specimen shows

fungal activity of the material or the presence of a fungicidal treatment.
3.3 Considerations when specifying test procedures

Surface contamination in the form of dusts, liquids, condensed volatile nutrients or grease

may be deposited upon assembled specimens. This can be brought about by storage and use

or transport with the product exposed to the atmosphere or handled without protective

covering. This surface contamination can cause an increased colonization by fungi and may

lead to greater growth and damage. An assessment of the effect of such contamination can

be given by the application of test Variant 2.
Due to the difficulty of maintaining the necessar

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.