IEC 60721-3-2:2018

IEC 60721-3-2 ®
Edition 3.0 2018-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Classification of environmental conditions –
Part 3-2: Classification of groups of environmental parameters and their
severities – Transportation and handling

Classification des conditions d’environnement –
Partie 3-2: Classification des groupements des agents d’environnement et de
leurs sévérités – Transport et manutention

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IEC 60721-3-2 ®
Edition 3.0 2018-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Classification of environmental conditions –

Part 3-2: Classification of groups of environmental parameters and their

severities – Transportation and handling

Classification des conditions d’environnement –

Partie 3-2: Classification des groupements des agents d’environnement et de

leurs sévérités – Transport et manutention

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 19.040 ISBN 978-2-8322-5374-8

– 2 – IEC 60721-3-2:2018 © IEC 2018
CONTENTS
FOREWORD . 3
1 Scope and object . 5
2 Normative references . 5
3 Terms and definitions. 5
4 General . 6
5 Classification of groups of environmental parameters and their severities . 7
5.1 General . 7
5.2 K Climatic conditions . 7
5.3 B Biological conditions . 9
5.4 C Chemically active substances . 9
5.5 S Mechanically active substances . 10
5.6 M Mechanical conditions . 11
Annex A (informative) Chemically active substances . 15
Bibliography . 16

Figure 1 – Consolidation of vibration conditions . 13
Figure 2 – Consolidation of mechanical conditions . 14

Table 1 – Classification of climatic conditions . 8
Table 2 – Classification of biological conditions . 9
Table 3 – Classification of chemically active substances . 10
Table 4 − Classification of mechanically active substances . 11
Table 5 – Classification of mechanical conditions . 11

– 3 – IEC 60721-3-2:2018 © IEC 2018

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
CLASSIFICATION OF ENVIRONMENTAL CONDITIONS –

Part 3-2: Classification of groups of environmental parameters
and their severities –
Transportation and handling
FOREWORD
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patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60721-3-2 has been prepared by IEC technical committee 104:
Environmental conditions, classification, and methods of test.
This third edition cancels and replaces the second edition, published in 1997, and constitutes a
technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) Clause 1: reworded and added handling.
b) Clause 2: updated normative references.
c) Clause 3: updated definitions.
d) Clause 4: reworded and simplified.

– 4 – IEC 60721-3-2:2018 © IEC 2018
e) Clause 5: revised and updated. Several classes have been replaced by completely new
classes based on the use of new information obtained from referenced Technical Reports.
f) Table 1 through Table 5: updated.
g) Table 6 deleted.
h) Old annexes A to C removed except Clause A.3 that is incorporated in Clause 5.
i) New Annex A.
The text of this International Standard is based on the following documents:
FDIS Report on voting
104/773/FDIS 104/783/RVD
Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts in the IEC 60721 series, published under the general title Classification of
environmental conditions, can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until
the stability date indicated on the IEC website under "http://webstore.iec.ch" in the data
related to the specific document. At this date, the document will be
 reconfirmed,
 withd
...