ISO 17479:2013/Amd 1:2020

Overview

ISO 17479:2013/Amd 1:2020 is an important amendment to the international standard for motorcycles concerning the measurement methods for gaseous exhaust emissions during inspection or maintenance. Published by the International Organization for Standardization (ISO), this amendment enhances the procedures for assessing motorcycle emissions to comply with evolving environmental and inspection requirements.

This update reflects the latest best practices for accurately measuring gaseous pollutants emitted by motorcycles, supporting air quality improvements and regulatory compliance worldwide. It is applicable to technical professionals, vehicle inspectors, emission testing laboratories, and manufacturers focused on reducing the environmental impact of motorcycles.

Key Topics

• Amendment to warm-up procedure:
  The main modification introduces an alternative warm-up method where the motorcycle can be warmed up by running for at least 15 minutes or covering at least 5 kilometers under normal urban traffic conditions. This ensures realistic engine operating temperatures and conditions during emissions testing.

• Enhanced measurement accuracy:
  By revising how warm-up is conducted, the amendment helps standardize conditions across inspections, improving the reproducibility and reliability of gaseous emission measurements.

• Applicability during inspection and maintenance:
  The methods prescribed are aimed specifically at real-world inspection and maintenance scenarios, enabling authorities and service centers to better monitor and control motorcycle emissions.

• Alignment with ISO/IEC Directives:
  The document adheres to rigorous ISO technical committee procedures, ensuring consistency with internationally recognized standardization processes.

Applications

• Vehicle inspection centers:
  Enables more accurate and consistent emissions testing for motorcycles during periodic inspections, helping enforce emission limits effectively.

• Maintenance and repair workshops:
  Provides a standardized measurement approach assisting mechanics and technicians in diagnosing emission-related engine issues.

• Regulatory compliance:
  Supports governments and environmental agencies in implementing emission regulations for motorcycles to reduce air pollution.

• Research and development:
  Assists manufacturers and researchers in evaluating exhaust emissions under controlled but practical conditions, facilitating the design of cleaner engine technologies.

Related Standards

• ISO 17479:2013 – The original version of this standard, providing the foundational methods for measuring gaseous exhaust emissions from motorcycles.

• ISO/IEC Directives, Part 1 & Part 2 – Guidelines governing the development, editorial style, and maintenance of ISO standards, ensuring consistency and quality.

• ISO 8178 series – Standards related to emissions measurement for engines, applicable in wider automotive and non-road vehicle sectors.

• Environmental regulations references – This amendment supports compliance with local and international emission regulations, such as Euro standards or equivalent national legislation.

By following ISO 17479:2013/Amd 1:2020, stakeholders enhance the reliability and environmental integrity of motorcycle emission testing. It provides practical guidance to promote cleaner transportation and support sustainable urban air quality management.