In cleaning out my fathers stuff, I have put 20 air cylinders of various sizes in to be tested. Two were condemned due to being aluminium and their age (pre-1991), but the rest are going through the formality of testing and are expected to pass. The local dive shop has offered to buy them all from me, but I thought some fellow shooters should benefit before I hand them off to the dive shop.
If you are in the greater Canberra area, up to Sydney and down onto the NSW Sth. Coast I have tested cylinders that will be for sale after Australia day.
A new steel 10litre is $450 plus shipping, I will be selling for half that.