IEC 60721-3-9:2024
Current
The latest, up-to-date edition.
Classification of environmental conditions - Part 3-9: Classification of groups of environmental parameters and their severities - Microclimates inside products
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English - French
11-04-2024
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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.
| Committee |
TC 104
|
| DocumentType |
Standard
|
| Pages |
34
|
| PublisherName |
International Electrotechnical Committee
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| CEI EN IEC 60721-3-9:2024 | Identical |
| DS/EN IEC 60721-3-9:2024 | Identical |
| DIN EN IEC 60721-3-9:2024-12 | Identical |
| BS EN IEC 60721-3-9:2024 | Identical |
| VDE 0468-721-3-9:2024-12 | Identical |
| UNE-EN IEC 60721-3-9:2024 | Identical |
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