They are still quite useful for predicting boiling points under reduced pressure. https://www.sigmaaldrich.com/chemistry/solvents/learning-center/nomograph.htm

They are still quite useful for predicting boiling points under reduced pressure. https://www.sigmaaldrich.com/chemistry/solvents/learning-center/nomograph.html https://www.sigmaaldrich.com/chemistry/solvents/learning-cen...