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ISO DIS 12614-9 2013 Edition, January 16, 2013 ROAD VEHICLES - LIQUEFIED NATURAL GAS (LNG) FUEL SYSTEM COMPONENTS - PART 9: GAS-TIGHT HOUSING AND VENTILATION HOSE
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Description / Abstract:
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 ISO 3833.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;
b) stationary gas engines;
c) container mounting hardware;
d) electronic fuel management;
e) refueling 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 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
1) 1bar=0,1MPa=105Pa;1MPa=1N/mm2