If i am wrong i am sorry but since we are in the midst of a hot summer and lot of people here do their own A/C work i thought that i post
what i feel might be helpful ,,
https://www.jamcoautoparts.com/syste...shootingchart/

 

It's a good chart but a little off. If DIYers go off of it, they will be in the ball park. To go by psi you need to be certified and know what you are doing. The common DIYer need to know the amount not PSI because there are a lot of factor that go with an a/c system. I'm not saying this to knock what you posted because it is a goo chart

 

Hello Sean,, i guess i am wrong in assuming that people work on their A/C system own at least have a set of pressure gauges
if they do and going according to the pressure on their car,on the chart there is some troubleshooting possibilities they can go from ,
might help them to diagnose the issue a bit faster