What are the different wet capacities of oxygen tanks?

Question

Is the wet capacity of an oxygen tank the same with other cylinders (i.e. acetylene cylinder, SCUBA cylinder)?

Answer 1

It isn't obvious what 'wet capacity' means in this context. Oxygen is stored at much higher pressure (2200 psi) than air in SCUBA tanks (200 psi I think) or acetylene (dissolved in acetone, a few dozen psi)
therefore O2 tanks are heavier. Standard capacities can be found on welding sites as here
http://www.airgas.com/content/details.aspx?id=7000000000234