Hydrogen Conversion Factors and Facts Card Revised
Conversion Factors Pressure 1 bar = megaPascal MPa = lbf/square inch PSI 5 000 psi = 345 bars = MPa 10 000 psi = 689 bar = MPa Volume 1 standard cubic foot = liters [standard conditions are atmospheric pressure and 60°F 16°C ] Mass 1 kilogram = pounds Energy 1 British thermal unit Btu = 1 joules J 1 calorie cal = …