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 |
0.5906
|
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.