ISO 19453-5:2018

INTERNATIONAL ISO
STANDARD 19453-5
First edition
2018-03
Road vehicles — Environmental
conditions and testing for electrical
and electronic equipment for
drive system of electric propulsion
vehicles —
Part 5:
Chemical loads
Véhicules routiers — Spécifications d'environnement et essais
de l'équipement électrique et électronique pour les véhicules à
propulsion électrique —
Partie 5: Contraintes chimiques
Reference number
ISO 19453-5:2018(E)
©
ISO 2018

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ISO 19453-5:2018(E)

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ii © ISO 2018 – All rights reserved

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ISO 19453-5:2018(E)

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Tests . 1
4.1 General . 1
4.2 Purpose . 2
4.3 General test conditions . 2
4.4 DUT conditioning . 2
4.5 Test agent conditioning . 2
4.6 Application method . 2
4.7 Test conditions . 2
4.8 Procedure . 4
4.9 Requirements . 5
5 Documentation . 5
Bibliography . 7
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ISO 19453-5:2018(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
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For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following
URL: www .iso .org/ iso/ foreword .html
This document was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 32,
Electrical and electronic components and general system aspects.
A list of all parts in the ISO 19453 series can be found on the ISO website.
iv © ISO 2018 – All rights reserved

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INTERNATIONAL STANDARD ISO 19453-5:2018(E)
Road vehicles — Environmental conditions and testing for
electrical and electronic equipment for drive system of
electric propulsion vehicles —
Part 5:
Chemical loads
1 Scope
This document specifies requirements for the electric propulsion systems and components with
maximum working voltages according to voltage class B. It does not apply to high voltage battery packs
(e.g. for traction) and systems and components inside. It describes the potential environmental stresses
and specifies tests and requirements recommended for different stress levels on/in the vehicle.
This document describes chemical loads.
NOTE Conditions and testing for a continuous contact can be determined from other standards or agreed
upon between the customer and the supplier.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 19453-1, Road vehicles — Environmental conditions and testing for electrical and electronic equipment
for drive system of electric propulsion vehicles — Part 1: General
ISO 19453-4, Road vehicles — Environmental conditions and testing for electrical and electronic equipment
for drive system of electric propulsion vehicles — Part 4: Climatic loads
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 19453-1 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http:// www .electropedia .org/
— ISO Online browsing platform: available at https:// www .iso .org/ obp
4 Tests
4.1 General
Components and associated parts that can come into contact with the specified chemical agents shall
be resistant to those agents. The components and associated parts shall be tested with all agents they
are likely to come into contact with, except for those materials which can be shown by documentary
evidence to be immune to the contaminant and which need not be tested.
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ISO 19453-5:2018(E)

A material is considered to be immune to a contaminant if there is no change in properties sufficient to
affect material performances over the time and at the temperature specified in this clause.
The supplier and vehicle manufacturer shall agree on the manufacturer and type of chemical agents.
Resistance to the specified chemical agents shall be considered as early as possible during the material
selection process.
4.2 Purpose
The purpose of the test is to determine whether the device under test (DUT) is unacceptably affected
by temporary exposure to contaminating agents.
NOTE This test is not intended to be a life test.
4.3 General test conditions
Chemical agents shall be selected as defined in Table 1, depending on the mounting location of the DUT.
Unless otherwise specified, one DUT per test agent shall be used.
The following tests describe one test cycle. Unless otherwise specified, one test cycle with one agent
per DUT shall be performed. Any other number of cycles may be agreed between the customer and the
supplier.
NOTE If the size of the DUT is sufficient, multiple test agents can be applied partially on one DUT provided
that these do not have any influence on each other.
4.4 DUT conditioning
Unless otherwise specified, the DUT shall be stored at a room temperature (RT) of (23 ± 5) °C and a
relative humidity (RH) of between 25 % and 75 % until temperature and humidity are stabilized.
The DUT shall be tested under conditions of normal use. If necessary, and unless otherwise specified,
unrepresentative coatings or contaminations of the DUT shall be removed.
If a cleaning procedure is needed, the customer
...