I was looking at some old German books and found mention of Spunding at (some value) atü.
I looked up atü and found it is short for the German word "Atmosphärenüberdruck" which translated by me becomes "above atmospheric pressure" or "over 1 atm"
I looked up atm and found it is given as 14.7 psi
so when we read a pressure or spunding regulator guage and it says 5 psi... is that below 1 atm?
Or, are pressure gauges basically all designed to read above 1 atm?
is 5psi... 5 psi or 19.7 psi ?
I looked up atü and found it is short for the German word "Atmosphärenüberdruck" which translated by me becomes "above atmospheric pressure" or "over 1 atm"
I looked up atm and found it is given as 14.7 psi
so when we read a pressure or spunding regulator guage and it says 5 psi... is that below 1 atm?
Or, are pressure gauges basically all designed to read above 1 atm?
is 5psi... 5 psi or 19.7 psi ?