Originally Posted by GotTheTshirt
You can ship an oxygen cylinder provided it is empty.We remove the valve head to ensure this because it our responsibilty as shipper.
Surely, you can ship any cylinder provided it is empty?
I once carried some empty gas bottles (in a helicopter, i.e. lowish level), and to prove they were empty, the dispatcher opened the valves. So, off I took, and a couple of minutes later there was a rather strong smell of gas, which had expanded due to the drop in pressure.
I now always make sure the valves are closed, on any cylinder.
You
should be able to confirm a cylinder is empty by checking its weight - the empty weight should be stamped on it.