1.1 Scope
1.1.1
This standard applies to:
a. The mechanical and electrical features of newly manufactured systems that dispense compressed
hydrogen gas for vehicles (HGV) where such systems are intended primarily to dispense the fuel
directly into the fuel storage container of the vehicle.
b. HGV dispensers that integrate in a single unit multiple dispensing functions (e.g., fuel metering,
registering, control and management devices, vehicle fuel cylinder overfill and over pressure
protection with listed hoses with nozzles).
c. The following service pressures are applicable, 25MPa, 35MPa, 50MPa, 70MPa:
Each dispenser may have the capability of independently fueling more than one vehicle simultaneously
1.1.2
HGV dispensers covered by this standard are intended for use with gas composition specified by the
Hydrogen Fuel Quality for Fuel Cell Vehicles, SAE J2719.
1.1.3
This standard applies to dispensers that include fuel metering, registering, control and management
devices, vehicle fuel cylinder overfill and vehicle fuel cylinder over pressure protection.
1.1.4
This standard does not apply to dispensers that are part of a modular fueling station with remote fuel
metering, registering, control and management devices, vehicle fuel cylinder overfill and over pressure
protection included in an integrated fueling station control system. For these applications refer to CSA
America HGV 4.9, Hydrogen Fueling Station Safety Guideline.
1.1.5
Installation of a dispensing system is intended to be in accordance with the, Hydrogen Motor Fuel
Dispensing and Generating Facilities Standards, ICC 2006 International Fire Code, Section 2209, or Hydrogen
Technologies Code, ANSI/NFPA 2, as applicable, and the requirements of the authority having jurisdiction.
1.1.6
All dimensions used in this standard are in metric units [International System of Units (SI)], unless
otherwise specified. If a value for a measurement, as given in this standard, is followed by an equivalent
value in other units, the first stated is to be regarded as the specification
1.1.7
All references to pressure throughout this document are to be considered gauge pressures unless
otherwise specified.
1.1.8
Exhibit B contains a list of standards specifically referenced in this standard, and sources from which these
reference standards may be obtained.