FprEN IEC 60721-3-9:2024
(Main)Classification of environmental conditions - Part 3-9: Classification of groups of environmental parameters and their severities - Microclimates inside products
Classification of environmental conditions - Part 3-9: Classification of groups of environmental parameters and their severities - Microclimates inside products
IEC 60721-3-9:2024 classifies groups of microclimatic conditions, to which components (basic parts, assemblies, built-in units) can be subjected inside products, which are used under the climatic conditions as classified in IEC 60721-3-3 and IEC 60721-3-4. This second edition cancels and replaces the first edition published in 1993, Amendment 1:1994 and Corrigendum 1:1995. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) Clause 2 has been updated; b) Clause 4 has been re-edited and simplified; c) Annex A has been revised and updated; d) a new Annex B has been added and gives the origin of the constitutional diagram for humid air, which is the basis of drawing the climatogram for a microclimate.
Klassifizierung von Umweltbedingungen - Teil 3: Klassen von Umwelteinflußgrößen und deren Grenzwerte - Hauptabschnitt 9: Mikroklimate innerhalb von Erzeugnissen
Classification des conditions d'environnement - Partie 3-9: Classification des groupements des agents d'environnement et de leurs sévérités - Microclimats à l'intérieur des produits
L'IEC 60721-3-9:2024 classifie les groupements des conditions microclimatiques auxquelles les composants (parties élémentaires, assemblées, encastrées) peuvent être soumis à l'intérieur des produits, lorsqu'ils sont utilisés dans les conditions climatiques classifiées dans l'IEC 60721-3-3 et l'IEC 60721-3-4. Cette deuxième édition annule et remplace la première édition parue en 1993, l’Amendement 1:1994 et le Corrigendum 1:1995. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: a) l’Article 2 a été mis à jour; b) l’Article 4 a été reformulé et simplifié; c) l’Annexe A a été révisée et mise à jour; d) une nouvelle Annexe B a été ajoutée et fournit l'origine du diagramme constitutionnel pour l'humidité de l'air, qui sert de base à l'établissement du climatogramme d'un microclimat.
Klasifikacija okoljskih pogojev - 3. del: Razvrščanje skupin okoljskih parametrov in njihove resnosti - 9. oddelek: Mikroklima v izdelkih
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN IEC 60721-3-9:2023
01-oktober-2023
Klasifikacija okoljskih pogojev - 3. del: Razvrščanje skupin okoljskih parametrov
in njihove resnosti - 9. oddelek: Mikroklima v izdelkih
Classification of environmental conditions - Part 3: Classification of groups of
environmental parameters and their severities - Section 9: Microclimates inside products
Klassifizierung von Umweltbedingungen - Teil 3: Klassen von Umwelteinflußgrößen und
deren Grenzwerte - Hauptabschnitt 9: Mikroklimate innerhalb von Erzeugnissen
Classification des conditions d'environnement - Partie 3: Classification des groupements
des agents d'environnement et de leurs sévérités - Section 9: Microclimats à l'intérieur
des produits
Ta slovenski standard je istoveten z: prEN IEC 60721-3-9:2023
ICS:
19.040 Preskušanje v zvezi z Environmental testing
okoljem
oSIST prEN IEC 60721-3-9:2023 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN IEC 60721-3-9:2023
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oSIST prEN IEC 60721-3-9:2023
104/1006/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 60721-3-9 ED2
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2023-07-28 2023-10-20
SUPERSEDES DOCUMENTS:
104/966/CD, 104/996A/CC
IEC TC 104 : ENVIRONMENTAL CONDITIONS, CLASSIFICATION AND METHODS OF TEST
SECRETARIAT: SECRETARY:
Sweden Mr Henrik Lagerström
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:
Other TC/SCs are requested to indicate their interest, if
any, in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
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This document is still under study and subject to change. It should not be used for reference purposes.
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Recipients of this document are invited to submit, with their comments, notification of any relevant “In So me
Countries” clauses to be included should this proposal proceed. Recipients are reminded that the CDV stage is the
final stage for submitting ISC clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).
TITLE:
Classification of environmental conditions - Part 3: Classification of groups of environmental
parameters and their severities - Section 9: Microclimates inside products
PROPOSED STABILITY DATE: 2028
NOTE FROM TC/SC OFFICERS:
Copyright © 2023 International Electrotechnical Commission, IEC. All rights reserved. It is permitted to
download this electronic file, to make a copy and to print out the content for the sole purpose of preparing
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oSIST prEN IEC 60721-3-9:2023
IEC CDV 60721-3-9 © IEC 2023 2 104/1006/CDV
1 CONTENTS
2
3 FOREWORD. 3
4 1 Scope . 5
5 2 Normative references . 5
6 3 Terms and definitions . 5
7 4 General . 6
8 5 Classification of microclimatic conditions . 6
9 6 Types and marking of microclimatic classes . 7
10 Annex A (informative) Graphical presentation and preferred microclimatic classes . 8
11 A.1 Graphical presentation of the microclimatic classes . 8
12 A.2 Tables of preferred microclimatic classes . 9
13 Annex B (informative) Constitutional diagram for humid air . 13
14 B.1 General .
...
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