7
Assembly and connection
3
3.2
3.3
Filling of cylinder
Only qualified technicians trained in high pressure and flammable gases can carry
out fitting of regulators and filling of cylinders, and do so in accordance with local
laws and Health and Safety (H&S) regulations.
A leak check must be conducted after filling the cylinder.
Consult local H&S / facilities management for guidance on storage of cylinders and
advisable safety equipment.
Hydrogen fuel
When installing and operating hydrogen systems, hydrogen general safety guidance
should be considered, for more detailed information see:
ISO/TR 15916 – Basic considerations for the safety of hydrogen systems
Hydrogen purity is an important consideration for fuel cell performance, it should
comply with the specification in the table below for best performance:
For more details about hydrogen quality see the user manual for your FCPM
or contact Intelligent Energy Product Support, see Section 6
Fuel Characteristics
Fuel Requirements
Hydrogen concentration
> 99.90 %
Nitrogen, Helium, Argon
< 0.10%
Oxygen
< 50 ppm
Carbon Dioxide
< 2 ppm
Carbon Monoxide
< 0.2 ppm
Ammonia
< 0.1 ppm
Sulphur containing compounds
< 4 ppb
Max particle concentration
< 1 mg/kg
Max particle diameter
< 75 µm
