ISO 15500-11:2015 PDF

Scope: This part of ISO 15500 specifies tests and requirements for the gas/air mixer, a compressed natural gas fuel system component intended for use on the types of motor vehicles defined in ISO 3833. This part of ISO 15500 is applicable to vehicles using natural gas in accordance with ISO 15403-1 (monofuel, bi-fuel, or dual-fuel applications). It is not applicable to the following: a) liquefied natural gas (LNG) fuel system components located upstream of, and including, the vaporizer; c) stationary gas engines; e) electronic fuel management; b) fuel containers; d) container mounting hardware; f) refuelling receptacles. NOTE 1 It is recognized that miscellaneous components not specifically covered herein can be examined to meet the criteria of this part of ISO 15500 and tested according to the appropriate functional tests. NOTE 2 All references to pressure in this part of ISO 15500 are to be considered gauge pressures unless otherwise specified. NOTE 3 This part of ISO 15500 is based upon a service pressure for natural gas as a fuel of 20 MPa (200 bar1)) settled at 15 °C. Other service pressures can be accommodated by adjusting the pressure by the appropriate factor (ratio). For example, a 25 MPa (250 bar) service pressure system will require pressures to be multiplied by 1,25.

ISO 15500-11:2015 Referenced Document

ISO 15403-1:2006 Natural gas - Natural gas for use as a compressed fuel for vehicles - Part 1: Designation of the quality
ISO 15500-1:2015 Road vehicles - Compressed natural gas (CNG) fuel system components - Part 1: General requirements and definitions
ISO 15500-2:2012 Road vehicles - Compressed natural gas (CNG) fuel system components - Part 2: Performance and general test methods
ISO 3833:1977 Road vehicles; Types; Terms and definitions
ISO/TR 15403-2:2006 Natural gas - Natural gas for use as a compressed fuel for vehicles - Part 2: Specification of the quality

2015 ISO 15500-11:2015 Road vehicles - Compressed natural gas (CNG) fuel system components - Part 11: Gas/air mixer
2001 ISO 15500-11:2001/Cor 1:2003 Road vehicles -Compressed natural gas (CNG) fuel system components - Part 11: Gadair mixer
2001 ISO 15500-11:2001 Road vehicles - Compressed natural gas (CNG) fuel system components - Part 11: Gas/air mixer