ISO 12614-9:2014 PDF

Scope: This part of ISO 12614 specifies tests and requirements for the gas-tight housing and ventilation hose, a liquefied natural gas fuel system component intended for use on the types of motor vehicles defined in This part of ISO 12614 is applicable to vehicles using natural gas in accordance with ISO 15403 (monofuel, bi-fuel, or dual-fuel applications). It is not applicable to the following: a) fuel containers; c) container mounting hardware; e) refueling receptacles. b) stationary gas engines; d) electronic fuel management; NOTE 1 It is recognized that miscellaneous components not specifically covered herein can be examined to meet the criteria of this part of ISO 12614 and tested according to the appropriate functional tests. NOTE 2 All references to pressure in this part of ISO 12614 are to be considered gauge pressures unless otherwise specified. NOTE 3 This part of ISO 12614 is based upon a working pressure for natural gas as a fuel of 1,6 MPa [16 bar1)]. Other working pressures can be accommodated by adjusting the pressure by the appropriate factor (ratio). For example, 2 MPa (20 bar) working pressure system will require pressures to be multiplied by 1,25.

ISO 12614-9:2014 Referenced Document

ISO 12614-1:2014 Road vehicles - Liquefied natural gas (LNG) fuel system components - Part 1: General requirements and definitions
ISO 12614-2:2014 Road vehicles - Liquefied natural gas (LNG) fuel system components - Part 2: Performance and general test methods
ISO 3833:1977 Road vehicles; Types; Terms and definitions

2021 ISO 12614-9:2021 Road vehicles - Liquefied natural gas (LNG) fuel system components - Part 9: Gas-tight housing and ventilation hose
2014 ISO 12614-9:2014 Road vehicles - Liquefied natural gas (LNG) fuel system components - Part 9: Gas-tight housing and ventilation hose