Wow, I thought this was well established...yes, pure sample of the substance boiled off in pretty much a vacuum. Now, put the substance of interest in a complex plant matrix with other somewhat volatile substances at normal pressure using a normal vape (which is not a high precision scientific instrument) and my belief is that these tables are not practically useful except except in the broadest terms...i.e. lower temp = more up high and higher temp = more sedative and couch lock and the relative order of the boiling points of the cannabinoids and terpenes. But as a reference for being able to extract a specific substance at a specific temperature...I/m thinking no. I do not believe it is reasonable to think that we are boiling off very specific cannabinoids at these specific temperatures. I believe that reality on this subject is much more messy.