ISO 22760-3:2024/Amd 1

Overview

ISO 22760-3:2024/Amd 1 is an important amendment to the international standard for road vehicles using Dimethyl Ether (DME) as fuel. This amendment specifically addresses the 85% stop valve used in DME fuel system components. As part of the broader ISO 22760 series, which focuses on various components of DME fuel systems, this update ensures enhanced safety, compatibility, and traceability for the stop valve used in vehicles powered by DME.

Dimethyl Ether (DME) is gaining attention as a clean alternative fuel for road vehicles due to its low emissions and efficient combustion properties. The standardization of fuel system components, such as stop valves, is critical to support safe implementation and widespread adoption of DME technology in the automotive industry.

Key Topics

• 85% Stop Valve Specification: Defines the technical requirements and performance criteria for the stop valve designed to safely control DME flow at 85% functionality.
• Mandatory Fuel Type Marking: The update requires mandatory marking of the type of fuel on the valve to ensure clear identification and avoid misuse.
• Component Marking and Traceability:
  • Manufacturer’s or agent’s name, trademark, or symbol.
  • Model designation (part number).
  • Working pressure and temperature range.
  • Type of fuel used (mandatory).
• Recommended Additional Marking: To aid installation and certification processes the following are advised:
  • Direction of fuel flow for correct valve installation.
  • Electrical ratings, if applicable.
  • Certification agency symbol and type approval number.
  • Serial number or date code to track manufacturing batch.
  • Reference to the standard document ISO 22760-3.

Applications

• Road Vehicles Using DME Fuel: The amendment applies primarily to vehicles employing DME as a clean fuel alternative. This is relevant for passenger cars, commercial vehicles, and public transport fleets aiming to reduce greenhouse gas emissions.
• Fuel System Manufacturers: Ensures components like stop valves are produced to uniform safety and quality standards, facilitating interoperability and reliability.
• Safety Compliance: Enables regulatory bodies and vehicle manufacturers to meet international safety and quality requirements efficiently.
• Maintenance and Inspection: Traceability through marking assists in maintenance, recalls, and inspection services, helping ensure system reliability and safety over the vehicle’s service life.

Related Standards

• ISO 22760 Series: Covers various DME fuel system components:
  • Part 1 & 2 handle other elements of the fuel delivery system.
  • Part 9 (Pressure Relief Device) addresses safety venting components to prevent overpressure conditions.
• ISO/TC 22/SC 41: The technical committee responsible for road vehicles fueled by gaseous fuels, including Dimethyl Ether.
• ISO/IEC Directives Part 1 & 2: Guidelines used in preparing and maintaining ISO documents ensuring consistency and clarity.
• International Electrotechnical Commission (IEC) Collaboration: Ensures electrotechnical aspects related to fuel components are harmonized with ISO standards.

Adhering to ISO 22760-3:2024/Amd 1 supports the safe and efficient deployment of DME fuel technology in road vehicles by standardizing key components such as the 85% stop valve. This fosters innovation and confidence in using Dimethyl Ether as an environmentally sustainable fuel alternative.

For more information and the full suite of ISO 22760 standards, visit www.iso.org.