Publication details
| Publication CODE |
Title |
| EN IEC 60721-3-9:2024 (2024-05) |
CLASSIFICATION OF ENVIRONMENTAL CONDITIONS - PART 3-9: CLASSIFICATION OF GROUPS OF ENVIRONMENTAL PARAMETERS AND THEIR SEVERITIES - MICROCLIMATES INSIDE PRODUCTS |
| |
| Price Excl. VAT |
Total number of pages, tables and drawings |
|
14.00 €
|
3. |
Description
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.
|
| Class |
C
|
Status
| Status |
IEC PUBLICATION |
| Situation |
In preparation phase
|
|
Origin
| Committee |
CLC/SR 104
Environmental conditions, classification and methods of test
|
Approval
| BEC Approval |
2024-05-16 |
| NBN Status |
New |
|
| Date of ratification (d.o.r.) |
2024-05-16 |
| Date of announcement (d.o.a.) |
2024-08-16 |
| Date of publication (d.o.p.) |
2025-02-16 |
| Date of withdrawal former edition (d.o.w.) |
2027-05-16 |
| IEC file modification date |
2024-05-17 |
|
|
