ISO/TC 22/SC 41/WG 8 - Fuel system components and refueling connector for vehicles propelled by Dimethyl Ether (DME)

This document specifies general requirements and definitions of Dimethyl Ether (DME) fuel system components, intended for use on the types of motor vehicles defined in ISO 3833. It also provides general design principles and specifies requirements for instructions and marking. This document is applicable to vehicles (mono-fuel, bi-fuel or dual-fuel applications) using Dimethyl Ether in accordance with ISO 16861 and ASTM D7901. It is not applicable to the following: a) fuel containers; b) stationary gas engines; c) container mounting hardware; d) electronic fuel management; e) refuelling receptacles. NOTE 1 It is recognized that miscellaneous components not specifically covered herein can be examined to meet the criteria of this document and tested according to the appropriate functional tests. NOTE 2 All references to pressure in this document are considered gauge pressures unless otherwise specified.

This document specifies performance and general test methods for Dimethyl Ether (DME) fuel system components intended for use on the types of motor vehicles defined in ISO 3833. This document is applicable to vehicles (mono-fuel, bi-fuel or dual-fuel applications) using Dimethyl Ether in accordance with ISO 16861 and ASTM D7901. It is not applicable to the following: a) fuel containers; b) stationary gas engines; c) container-mounting hardware; d) electronic fuel management; e) refuelling receptacles.

This document applies only to Dimethyl Ether refuelling connectors hereinafter referred to as devices, constructed entirely of new, unused parts and materials. Dimethyl Ether refuelling connectors consist of the following components, as applicable: a) Nozzle (mounted on dispenser side). b) Receptacle (mounted on vehicle). This document applies to devices which use Dimethyl Ether as fuel, hereinafter referred to in this document as D15 [see 9.1 c)]. This document applies to devices with standardised mating components. This document applies to connectors which prevent Dimethyl Ether vehicles from being fuelled by fuel station dispensers for other gaseous fuels. This document is applicable to: Dimethyl Ether in accordance with ISO 16861. NOTE All references to pressures (kPa) throughout this document are considered gauge pressures unless otherwise specified.