ISO 16750-3-2023 PDF

Full title and description

St ISO 16750-3-2023 — Road vehicles — Environmental conditions and testing for electrical and electronic equipment — Part 3: Mechanical loads. This standard defines environmental stress conditions and recommended test procedures addressing mechanical loads (vibration, shock, mounting loads and related mechanical durability) for electrical and electronic systems and components intended for use in road vehicles (excluding motorcycles and mopeds), and provides guidance for selecting tests and severities appropriate to mounting location and vehicle class.

Abstract

ISO 16750-3:2023 specifies mechanical environmental loads, describes test methods and recommends requirements for electrical and electronic equipment in road vehicles, including components for electric propulsion systems (voltage class B). It defines mechanical stress types (sinusoidal and random vibration, shock, mechanical robustness, mounting and fastening influences, and resonance considerations) and how to select test severities based on mounting location and intended application.

General information

• Status: Published (current edition).
• Publication date: July 2023.
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 43.040.10 (Electrical and electronic equipment for road vehicles).
• Edition / version: 4th edition (2023).
• Number of pages: 104 pages.

Key bibliographic and status details above are taken from the ISO bibliographic entry for ISO 16750-3:2023.

Scope

This part of ISO 16750 applies to electrical and electronic systems and components for road vehicles and describes the mechanical loads to which these items may be exposed during vehicle operation, transport and handling. It gives recommended tests and severities for vibration, shock, mechanical endurance and mounting-related stresses, and guidance for selecting appropriate tests according to component type and mounting location. It is not intended for motorcycles and mopeds.

Key topics and requirements

• Definition and classification of mechanical loads relevant to vehicle electronics (road-load vibration, sinusoidal vibration, random vibration, shocks, mechanical impacts and loose-parts tests).
• Test methods and procedures for vibration (sinusoidal and broadband random), mechanical shock (single and repetitive), and rough-handling/impact tests.
• Guidance on mounting-location dependent severities and selection of test levels based on vehicle class and installation (body, chassis, engine bay, underbody, interior, etc.).
• Requirements for mechanical robustness of housings, fastenings, connectors and internal fixation (retention, strain relief, and mounting interface checks).
• Durability and resonance considerations (resonant frequency identification, fatigue assessment, and end-of-life mechanical performance).
• Reference and alignment with relevant environmental and vibration test methods from IEC/ISO test standards where applicable.

These topics and test relationships are described in the standard and cross-referenced to commonly used environmental test methods.

Typical use and users

Engineers and test laboratories in automotive OEMs and Tier‑1/2 suppliers use ISO 16750-3 when developing, validating and qualifying electronic control units (ECUs), sensors, actuators, wiring assemblies and other vehicle electronics. The standard is used to define qualification test programs, to specify mechanical durability requirements in procurement documents, and to support design decisions for mounting, housing and connector robustness.

Related standards

ISO 16750-3 is part of the ISO 16750 series (Parts 1–5) covering general, electrical, mechanical, climatic and chemical loads for vehicle electronics. It is commonly used alongside ISO 16750-1, ISO 16750-2, ISO 16750-4 and ISO 16750-5 and with IEC/ISO environmental test methods (for example IEC/ISO vibration and shock test methods referenced in the standard).

Keywords

ISO 16750-3, mechanical loads, vibration testing, shock testing, road-load, vehicle electronics, ECUs, mounting location, mechanical robustness, automotive environmental testing.

FAQ

Q: What is this standard?

A: ISO 16750-3:2023 is the part of the ISO 16750 series that specifies mechanical environmental loads and associated test methods for electrical and electronic equipment used in road vehicles (4th edition, published July 2023).

Q: What does it cover?

A: It covers mechanical stresses such as sinusoidal and random vibration, shocks and impacts, mounting and fastening influences, resonance and fatigue/durability considerations, and gives guidance on selecting test severities by mounting location and application.

Q: Who typically uses it?

A: Automotive design and test engineers, verification and validation teams, qualification laboratories, and suppliers (Tier‑1/2) use it to define and run mechanical environmental tests and to specify mechanical performance requirements in contracts and technical specifications.

Q: Is it current or superseded?

A: ISO 16750-3:2023 is the current published edition (4th edition, July 2023) that replaced the 2012 edition; the ISO bibliographic entry lists it as published and subject to normal review.

Q: Is it part of a series?

A: Yes — it is Part 3 of the ISO 16750 series (Parts 1 through 5) addressing environmental conditions and testing for electrical and electronic equipment in road vehicles.

Q: What are the key keywords?

A: Mechanical loads, vibration, shock, road-load, mounting location, ECUs, automotive environmental testing, ISO 16750-3.