Reference number
ISO 16750-3:2007(E)
©
ISO 2007
INTERNATIONAL
STANDARD
ISO
16750-3
Second edition
2007-08-01
Road vehicles — Environmental
conditions and testing for electrical and
electronic equipment —
Part 3:
Mechanical loads
Véhicules routiers — Spécifications d'environnement et essais des
équipements électrique et électronique —
Partie 3: Contraintes mécaniques
ISO 16750-3:2007(E)
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© ISO 2007 – All rights reserved
ISO 16750-3:2007(E)
© ISO 2007 – All rights reserved iii
Contents Page
Foreword............................................................................................................................................................ iv
1 Scope ..................................................................................................................................................... 1
2 Normative references ........................................................................................................................... 1
3 Terms and definitions........................................................................................................................... 1
4 Tests and requirements ....................................................................................................................... 2
4.1 Vibration ................................................................................................................................................ 2
4.2 Mechanical shock ............................................................................................................................... 19
4.3 Free fall ................................................................................................................................................ 21
4.4 Surface strength/scratch and abrasion resistance ......................................................................... 22
4.5 Gravel bombardment.......................................................................................................................... 22
5 Code letters for mechanical loads .................................................................................................... 22
6 Documentation.................................................................................................................................... 22
Annex A (informative) Guideline for the development of test profiles for vibration tests........................ 24
Annex B (informative) Recommended mechanical requirements for equipment depending on the
mounting location............................................................................................................................... 35
Bibliography ..................................................................................................................................................... 36
ISO 16750-3:2007(E)
iv © ISO 2007 – All rights reserved
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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
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.
ISO 16750-3 was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 3,
Electrical and electronic equipment.
This second edition cancels and replaces the first edition (ISO 16750-3:2003), which has been technically
revised.
ISO 16750 consists of the following parts, under the general title Road vehicles — Environmental conditions
and testing for electrical and electronic equipment:
⎯ Part 1: General
⎯ Part 2: Electrical loads
⎯ Part 3: Mechanical loads
⎯ Part 4: Climatic loads
⎯ Part 5: Chemical loads
INTERNATIONAL STANDARD ISO 16750-3:2007(E)
© ISO 2007 – All rights reserved 1
Road vehicles — Environmental conditions and testing for
electrical and electronic equipment —
Part 3:
Mechanical loads
1 Scope
This part of ISO 16750 applies to electric and electronic systems/components for road vehicles. This part of
ISO 16750 describes the potential environmental stresses, and specifies tests and requirements
recommended for the specific mounting location on/in the vehicle.
This part of ISO 16750 describes the mechanical loads.
2 Normative references
The following referenced documents are indispensable for the application 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 16750-1, Road vehicles — Environmental conditions and testing for electrical and electronic
equipment — Part 1: General
ISO 16750-4, Road vehicles — Environmental conditions and testing for electrical and electronic
equipment — Part 4: Climatic loads
IEC 60068-2-6, Environmental testing — Part 2: Tests — Test Fc: Vibration (sinusoidal)
IEC 60068-2-14, Environmental testing — Part 2: Tests — Test N: Change of temperature
IEC 60068-2-29, Environmental testing — Part 2: Tests — Test Eb and guidance: Bump
IEC 60068-2-32, Environmental testing — Part 2: Tests — Test Ed: Free fall
IEC 60068-2-64, Environmental testing — Part 2: Test methods — Test Fh: Vibration, broad-band random
(digital control) and guidance
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 16750-1 apply.
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