ISO DIS 20766-4

Description / Abstract: This part of ISO 20766-4 specifies general requirements and definitions of liquefied petroleum gas fuel components, intended for use on the types of motor vehicles as defined in ISO 3833. It also provides general design principles, and specifies requirements for instructions and marking.

This part of ISO 20766-4 \is applicable to vehicles (mono-fuel, bi-fuel or dual-fuel applications) using gaseous fuels in accordance with ISO 9162It 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 20766-4 and tested according to the appropriate functional tests

NOTE 2 All references to pressure in this part of ISO 20766-4 are to be considered gauge pressures unless otherwise specified.

NOTE 3 This part of ISO 20766 applies to devices which have a gauge service pressure in the range of 110 kPa (Butane rich at 20°C) and 840 kPa (Propane rich at 20°C), hereinafter referred to in this International Standard.

Other service pressures can be accommodated by adjusting the pressure by the appropriate factor (ratio).