ISO 11451-1-2015 PDF

Full title and description

St ISO 11451-1-2015 — Road vehicles — Vehicle test methods for electrical disturbances from narrowband radiated electromagnetic energy — Part 1: General principles and terminology. This part defines terms, establishes general test principles and practical guidelines used in the ISO 11451 series to determine vehicle-level immunity to continuous narrowband radiated electromagnetic fields over a wide frequency range.

Abstract

ISO 11451-1:2015 provides the foundational concepts, definitions and general conditions for vehicle immunity testing against narrowband radiated electromagnetic energy. It sets out test-environment requirements, measurement and instrumentation guidance (including artificial networks), general test procedures and performance classification principles that are used by the other parts of the ISO 11451 series.

General information

• Status: Withdrawn / superseded (replaced by ISO 11451-1:2025).
• Publication date: June 2015 (ISO 11451-1:2015).
• Publisher: International Organization for Standardization (ISO); adopted by national bodies for sale and distribution.
• ICS / categories: 33.100.20 (Immunity); 43.040.10 (Electrical and electronic equipment).
• Edition / version: ISO 11451-1:2015 (2015 edition).
• Number of pages: Approximately 40 pages (typical published PDF/page count for the 2015 edition).

Scope

This part specifies the general conditions, terminology and basic principles for vehicle test methods used throughout the ISO 11451 series to determine the immunity of passenger cars and commercial vehicles to electrical disturbances from continuous narrowband radiated electromagnetic energy. It applies regardless of vehicle propulsion type and supports immunity testing across a wide frequency range (typically quoted from 0.01 MHz up to about 18 000 MHz).

Key topics and requirements

• Standardized terminology and definitions for vehicle-level narrowband radiated immunity testing.
• General test conditions: environment, vehicle supply states, modulation, frequency step sizes, dwell times and levelling principles.
• Instrumentation and measurement guidance, including use and requirements for artificial networks (AN), artificial mains networks (AMN) and asymmetric artificial networks (AAN).
• Recommended test methods and procedures such as substitution methods, closed-loop levelling and vehicle immunity measurement approaches.
• Performance classification and reporting requirements (function performance status and how to record test outcomes).
• Principles for ensuring repeatability and comparability of vehicle-level EMC tests and normative references to related measurement standards.

Typical use and users

Used by automotive EMC engineers, vehicle manufacturers and integrators, component and subsystem suppliers, accredited test laboratories, certification bodies and regulators. Typical applications include planning and executing vehicle immunity tests, preparing test reports, specifying requirements for vehicle electronic systems and ensuring compliance with vehicle EMC acceptance criteria.

Related standards

Key related documents include other parts of the ISO 11451 series (for example Part 2 — off‑vehicle radiation sources; Part 4 — bulk current injection), the ISO 11452 component test series, CISPR/IEC measurement standards (e.g., CISPR/IEC 16 series), ISO 10605 (electrostatic discharge test methods), ISO 7637 series (transient conduction) and other regional/national EMC standards and guidelines used in vehicle testing.

Keywords

vehicle EMC, narrowband radiated immunity, radiated electromagnetic energy, immunity testing, artificial network (AN), AMN, AAN, substitution method, levelling, function performance status, ISO 11451 series.

FAQ

Q: What is this standard?

A: ISO 11451-1:2015 is Part 1 of the ISO 11451 series that defines general principles, terminology and practical guidelines for vehicle-level immunity testing to continuous narrowband radiated electromagnetic fields.

Q: What does it cover?

A: It covers general conditions for testing, standardized terms and definitions, instrumentation and measurement guidance (including artificial networks), recommended test procedures and the basics of performance classification and reporting used by the other parts of ISO 11451.

Q: Who typically uses it?

A: Automotive EMC engineers, vehicle manufacturers, suppliers of electronic vehicle systems, accredited EMC test laboratories and certification/regulatory bodies involved in vehicle electromagnetic compatibility assessment.

Q: Is it current or superseded?

A: ISO 11451-1:2015 has been superseded and replaced by a later edition, ISO 11451-1:2025 (published in 2025). The 2015 edition is therefore withdrawn for current normative use; users should adopt the 2025 edition for up-to-date requirements and changes.

Q: Is it part of a series?

A: Yes. It is Part 1 of the ISO 11451 series (road vehicles — vehicle test methods for electrical disturbances from narrowband radiated electromagnetic energy). Other parts of the series address off-vehicle radiation sources, bulk current injection and specific test methods used to assess vehicle immunity.

Q: What are the key keywords?

A: Vehicle EMC, narrowband radiated electromagnetic energy, immunity testing, AN/AMN/AAN, performance classification, levelling, substitution method, ISO 11451.