EN 60721-3-2:1997
(Main)Classification of environmental conditions - Part 3: Classification of groups of environmental parameters and their severities - Section 2: Transportation
Classification of environmental conditions - Part 3: Classification of groups of environmental parameters and their severities - Section 2: Transportation
Defines the environmental conditions to which a product is subjected while being transported from one place to another after being made ready for dispatch from the manufacturing factory.
Klassifizierung von Umweltbedingungen - Teil 3: Klassen von Umwelteinflußgrößen und deren Grenzwerte - Hauptabschnitt 2: Transport
Classification des conditions d'environnement - Partie 3: Classification des groupements des agents d'environnement et de leurs sévérités - Section 2: Transport
Définit les conditions d'environnement auxquelles un produit est soumis alors qu'il est transporté d'un lieu à l'autre, passé le stade où il est prêt à l'expédition hors de l'usine de production.
Classification of environmental conditions - Part 3: Classification of groups of environmental parameters and their severities - Section 2: Transportation
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Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2001
Classification of environmental conditions - Part 3: Classification of groups of
environmental parameters and their severities - Section 2: Transportation
Classification of environmental conditions -- Part 3: Classification of groups of
environmental parameters and their severities -- Section 2: Transportation
Klassifizierung von Umweltbedingungen -- Teil 3: Klassen von Umwelteinflußgrößen und
deren Grenzwerte -- Hauptabschnitt 2: Transport
Classification des conditions d'environnement -- Partie 3: Classification des groupements
des agents d'environnement et de leurs sévérités -- Section 2: Transport
Ta slovenski standard je istoveten z: EN 60721-3-2:1997
ICS:
19.040 Preskušanje v zvezi z Environmental testing
okoljem
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
NORME
CEI
INTERNATIONALE
IEC
60721-3-2
INTERNATIONAL
Deuxième édition
STANDARD
Second edition
1997-03
Classification des conditions d’environnement –
Partie 3:
Classification des groupements des agents
d’environnement et de leurs sévérités –
Section 2: Transport
Classification of environmental conditions –
Part 3:
Classification of groups of environmental parameters
and their severities –
Section 2: Transportation
IEC 1997 Droits de reproduction réservés Copyright - all rights reserved
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ou mécanique, y compris la photocopie et les microfilms, sans photocopying and microfilm, without permission in writing from
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CODE PRIX
Commission Electrotechnique Internationale
PRICE CODE T
International Electrotechnical Commission
Pour prix, voir catalogue en vigueur
For price, see current catalogue
60721-3-2 IEC:1997 − 3 −
CONTENTS
Page
FOREWORD . 5
Clause
1 Scope and object. 7
2 Normative references . 7
3 Definitions . 9
4 General . 9
5 Classification of groups of environmental parameters and their severities. 9
6 Sets of environmental condition class combinations . 11
Tables
1 Classification of climatic conditions. 13
2 Classification of biological conditions . 15
3 Classification of chemically active substances. 15
4 Classification of mechanically active substances. 17
5 Classification of mechanical conditions . 17
6 Sets of environmental class combinations. 19
Annexes
A Survey of conditions affecting the choice of environmental parameters and their
severities. 21
B Summary of conditions covered by the sets of class combinations. 41
C Explanation of the environmental conditions in tropical areas as specified
in classes 2K6 and 2K7 . 43
60721-3-2 IEC:1997 − 5 −
INTERNATIONAL ELECTROTECHNICAL COMMISSION
_________
CLASSIFICATION OF ENVIRONMENTAL CONDITIONS –
Part 3: Classification of groups of environmental parameters
and their severities –
Section 2: Transportation
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization
comprising all national electrotechnical committees (IEC National Committees). The object of the IEC is to
promote international co-operation on all questions concerning standardization in the electrical and electronic
fields. To this end and in addition to other activities, the IEC publishes International Standards. Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt
with may participate in this preparatory work. International, governmental and non-governmental organizations
liaising with the IEC also participate in this preparation. The IEC collaborates closely with the International
Organization for Standardization (ISO) in accordance with conditions determined by agreement between the
two organizations.
2) The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, an
international consensus of opinion on the relevant subjects since each technical committee has representation
from all interested National Committees.
3) The documents produced have the form of recommendations for international use and are published in the
form of standards, technical reports or guides and they are accepted by the National Committees in that
sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this International Standard may be the
subject of patent rights. The 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 75:
Classification of environmental conditions.
This second edition cancels and replaces the first edition published in 1985, amendment 1
(1991) and amendment 2 (1993). The third amendment led to the publication of this
consolidated edition.
The text of this standard is based on the following documents:
FDIS Report on voting
75/278/FDIS 75/293/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
IEC 721 consists of the following parts, under the general title Classification of environmental
conditions:
− Part 1: 1990, Environmental parameters and their severities
− Part 2: Environmental conditions appearing in nature
− Part 3: Classification of groups of environmental parameters and their severities.
Annexes A, B and C are for information only.
60721-3-2 IEC:1997 − 7 −
CLASSIFICATION OF ENVIRONMENTAL CONDITIONS –
Part 3: Classification of groups of environmental parameters
and their severities –
Section 2: Transportation
1 Scope and object
This section of IEC 60721-3 classifies the groups of environmental parameters and their
severities to which a product is subjected while being transported from one place to another
after being made ready for dispatch from the manufacturing factory.
The most commonly used methods of transportation have been taken into account, including
the following:
− road transport: cars, lorries, trucks, animals, conveyors;
− rail transport: trains, trams, conveyors;
− water transport, inland and maritime: ships, hovercraft, conveyors;
− air transport: aircraft, conveyors;
− vertical transport: cranes, transport lifts, cableways.
The environmental conditions specified in this section are those met by the product being
transported. If the product is packed, the environmental conditions apply to the package
containing the product. Only severe conditions, which may be harmful to products, are
included.
Conditions for storage and use are given in other sections of IEC 721-3.
The object of this standard is to classify groups of environmental parameters and their
severities to which a product will be exposed when being transported on ground, water and in
air, including loading and unloading.
A limited number of classes of environmental conditions are given, covering a broad field
of application. The user of this standard should select the lowest classes necessary covering
each of the conditions of the intended transportation. Some guidance for this is given in
annex A.
2 Normative references
The following normative documents contain provisions which, through reference in this text,
constitute provisions of this section of IEC 721-3. At the time of publication, the editions
indicated were valid. All normative documents are subject to revision, and parties to
agreements based on this section of IEC 721-3 are encouraged to investigate the possibility of
applying the most recent editions of the normative documents indicated below. Members of IEC
and ISO maintain registers of currently valid International Standards.
60721-3-2 IEC:1997 − 9 −
IEC 721-1: 1990, Classification of environmental conditions − Part 1: Environmental
parameters and their severities
Amendment 1 (1992)
Amendment 2 (1995)
IEC 721-2-1: 1982, Classification of environmental conditions − Part 2: Environmental
conditions appearing in nature − Temperature and humidity
Amendment 1 (1987)
IEC 721-3-0: 1984, Classification of environmental conditions − Part 3: Classification of groups
of environmental parameters and their severities − Introduction
Amendment 1 (1987)
3 Definitions
For the purpose of the present section of IEC 721-3, the following definitions apply, in addition
to the definitions in clause 3 of IEC 721-1.
3.1 weatherprotected: The product, packed or unpacked, is contained within an enclosure
which affords some protection from the environment, ranging from a temperature controlled
container to a waterproof cover placed over the product. Ventilation ranges from controlled air
flow to the raising of part of a waterproof cover to allow for natural air flow.
3.2 non-weatherprotected: The product, packed or unpacked, is not protected in any way
from the environment.
4 General
Reference to IEC 721-3-0 is strongly recommended in order to avoid misuse of the classes
defined in other sections of IEC 721-3.
The severities specified are those which will have a low probability of being exceeded. All
specified values are maximum or limit values. These values may be reached, but do not occur
permanently. Depending on the situation, there may be different frequencies of occurrence
related to a certain period of time. Such frequencies of occurrence have not yet been included
in this standard, but should be considered for any environmental parameter. They should
additionally be specified, if applicable.
Information on the duration and frequency of occurrence is given, as clause 6, in amendment 1
to IEC 721-3-0.
Attention is drawn to the fact that combinations of the environmental parameters given may
increase the effect on a product. This applies especially to the presence of high relative
humidity in addition to biological conditions, or to conditions of chemically or mechanically
active substances.
5 Classification of groups of environmental parameters and their severities
A limited number of classes for climatic conditions (K), biological conditions (B), chemically
active substances (C), mechanically active substances (S) and mechanical conditions (M) are
given in tables 1, 2, 3, 4 and 5. For a given product, reference should be made to the total set
of classes, for example 2K2/2B1/2C2/2S2/2M3.
60721-3-2 IEC:1997 − 11 −
See also clause 6.
The basis of these classes is explained in clause A.2 of annex A.
Climatic conditions in tropical areas as specified in classes 2K6 and 2K7 are explained in
annex C.
The combination of the lowest classes 2K1/2B1/2C1/2S1/2M1 forms the conditions to which a
product will be subjected when being transported under very restricted conditions. The
combination of the highest classes 2K5/2B3/2C3/2S3/2M3 covers transportation under a very
wide variety of conditions including very severe conditions.
A class with higher digit conditions normally includes all classes with lower digits.
For certain parameters it has not yet been possible to give quantitative values of severities.
A summary of the conditions covered by the classes is given in clause A.3 of annex A.
6 Sets of environmental condition class combinations
As indicated in clause 5, the classification allows a number of possible combinations of
environmental conditions bearing on products wherever used. The number of possibilities, and
thus the flexibility, is therefore very great. In practice, however, this flexibility is not always an
advantage when, for instance, environmental condition specifications for a certain location are
drawn up by different parties, invariably producing small but disturbing divergencies.
In order to limit the possibilities to general cases, standard sets of class combinations may be
selected from table 6. For a given location or product, reference may then be made to this
standard, for example IE22. Only when conditions are not considered to be covered by this
specification, is reference made to each class as indicated in clause 5. Alternatively, if some
severities of parameters dev
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