GB/T 44851.15-2025 Road vehicles—Liquefied natural gas(LNG) fuel system components—Part 15:Capacitance fuel content gauge

Scope

This document specifies the technical requirements for capacitive level gauges used in liquefied natural gas (LNG) fuel systems of road vehicles, and describes the test methods.
This document applies to the vehicle types defined in GB/T 3730.1.
This document does not apply to the following:
a) Gas cylinders;
b) Stationary gas engines;
c) Fixed components of containers;
d) Electronic fuel control systems;
e) Fuel inlets.
For components not covered by this document, refer to the relevant standards and conduct corresponding functional tests.
Unless otherwise specified, the pressures mentioned in this document are considered gauge pressures.
The working pressure of natural gas used as fuel in this document is 1.6 MPa. The pressure is adjusted by an appropriate factor (proportion) to adapt to other working pressures. For example, a system with a working pressure of 2 MPa requires the pressure to be multiplied by 1.25.

Development Information

Same series standard

Referenced Standards

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