Altitude		m ft
	Pressure		bar(a) Pa(a) psi(a)
	Dry bulb temperature		C K F
	Wet bulb temperature		C K F
	Relative humidity		%
	Moisture		kg H2O/kg air
	Specific volume		m3/kg ft3/lb
	Specific heat		kJ/kg/C Btu/lb/F
	Dynamic viscosity		Pa s lb/h/ft
	Enthalpy		kJ/kg Btu/lb
	Check