Hydrogen

Hydrogen is the lightest gas known. It is a colorless, odorless and tasteless gas and is flammable and nontoxic at atmospheric temperatures and pressures.

The Compressed Gas Association (CGA) specification G-5.3 is the industry standard. Type II, Grade A is considered commercial liquid hydrogen and Type I, Grade B is considered commercial gaseous hydrogen.

Certificate of Conformance

 


Hydrogen Conversion Data

Hydrogen
Weight
Gas
Liquid
Pounds

Kilograms

Cubic Feet
Cubic Meters
Gallons
Liters
Lb
Kg
SCF
Nm3
Gal
L
1 Pound
1
0.4536
192
5.047
1.6928
6.408
1 Kilogram
2.205
1
423.3
11.126
3.733
14.128
1 SCF Gas
0.005209
0.002363
1
0.02628
0.00882
0.03339
1 Nm3 Gas
0.19815
0.08988
38.04
1
0.3355
1.2699
1 Gal Liquid
0.05906
0.2679
113.41
2.981
1
3.785
1 L Liquid
0.15604
0.07078
29.99
0.7881
0.2642
1

SCF (standard cubic foot) and SM3 (standard cubic meter) gas measured at 1 atmosphere and 70ºF.

Liquid measured at 0ºF and saturated pressure.

Nm3 (normal cubic meter) gas measured at 1 atmosphere and 0ºC.

All values round to the nearest 4/5 significant numbers.