Road Vehicles – Liquefied Natural Gas (LNG) Fuel System Component s – Part 20: Flexible Fuel or Vent Lines

CSA Group
Standards Development Organisation:
Canadian Standards Association (operating as CSA Group)
Working Program:
View the CSA work program
Designation Number:
CSA ANSI LNG 3.20
Standard Type:
National Standard of Canada - Domestic
Standard Development Activity:
New Standard
Status:
Proceeding to development
SDO Comment Period Start Date:
SDO Comment Period End Date:
Posted On:

Scope:

  1. Scope

This CSA LNG 3.20 standard specifies tests and requirements for the flexible fuel line or vent line for service temperature colder than -40oC (-40oF) and cryogenic conditions, a liquefied natural gas fuel system component intended for use on the types of motor vehicles defined in ISO 3833.

This standard is not applicable to the following:

  1. fuel containers;
  2. stationary gas engines;
  3. container mounting hardware;
  4. electronic fuel management; or
  5. refueling receptacles.

NOTE 1 It is recognized that miscellaneous components not specifically covered herein can be examined to meet the criteria of this standard when tested according to the appropriate functional tests.

NOTE 2 All references to pressure in this standard are to be considered gauge pressures unless otherwise specified.

NOTE 3 This standard is based upon a Maximum Allowable Working Pressure (MAWP) for natural gas as a fuel of 1.6 MPa (232 psig). Other working pressures can be accommodated by adjusting the pressure by the appropriate factor (ratio). For

example, 2 MPa (290 psi) working pressure system will require pressures to be multiplied by 1.25.

Project need:

Flexible Fuel or Vent lines are currently not covered in the LNG 3 series standards. Providing requirements for the construction/installation/use of LNG Fuel lines in the Canadian context

Note: The information provided above was obtained by the Standards Council of Canada (SCC) and is provided as part of a centralized, transparent notification system for new standards development. The system allows SCC-accredited Standards Development Organizations (SDOs), and members of the public, to be informed of new work in Canadian standards development, and allows SCC-accredited SDOs to identify and resolve potential duplication of standards and effort.

Individual SDOs are responsible for the content and accuracy of the information presented here. The text is presented in the language in which it was provided to SCC.