Scale of hydrogen gas cylinder field

Which unit is used to measure hydrogen?

Measuring hydrogen: which units? The mass - expressed in kg - is the unit of reference, as it is invariable and reflects the quantity of matter. To calculate the volume (cubic meter or m3 ), the pressure and temperature conditions must be specified. When it is gaseous, the volume occupied varies with temperature or pressure.

Why is hydrogen a gas at atmospheric pressure?

At atmospheric pressure, hydrogen is gaseous. For it to become liquid, its temperature must be below -252.8°C. It then occupies a much smaller volume. 1 kg of significantly increased. To the size of compressed to 1 kg of hydrogen to be measured and thus compared with other fuels. It is expressed in kWh.

How do you calculate H2 equivalence based on hydrogen density?

H2 Mass calculated based on hydrogen density at 15°C - Gasoline and Diesel equivalence determined @ 35 MPa (5,076 psi) and 70°F: (GGE = 1.019*H2 kg, DGE = .877*GGE) - Contact Quantum for a list of approved valves and part numbers - H2 Mass calculated based on hydrogen density at 70°F - No foam domes required per DOT SP