How do you check to see if nitrogen tank is full?

[new.solution1]

I know you check the pressure, but how high should the pressure read? I'm going to purchase a 40 cu ft cylinder of nitrogen. Does half of the full pressure mean half full?

 

[Interloper]

but how high should the pressure read?

That depends on the supplier of your bottle. Most common in the US is 2015 psi, I believe.

 

[new.solution1]

Thank you. Knowing this, does half of 2015 psi mean it's half full?

 

[Onthe29th]

My cylinder is 2000psi according to the website for the store I bought it at and when I check the pressure on the regulator, it says 2000psi so I think it varies. Check with the store or website.

 

[Interloper]

Thank you. Knowing this, does half of 2015 psi mean it's half full?

I'd wait for someone more knowledgeable to answer but I would assume so. The maximum pressure your bottle can hold should be stamped on the bottle by the way, if your product page doesn't specify it maybe you can spot it on the pictures.