I have been told that Monarch will test tubes. Don't take my word for it, call Monarch. If you ship it to them, wrap it in several inches of the non woven padding often used in pillows. Remember to tie the ends of the roll so the tube can't slip out against the box.
The concept here, which seems so difficult for people to understand, is that the tube must be able to move in the padding, which for a light item like the tube must be very soft. When you jump off something, you land with your legs flexed so you gradually decelerate to a stop. In a drop, the tube must compress the padding and come to a gradual stop.
When buying tubes for my collection, the sellers invariably say that they will wrap it in bubble wrap and fill the box with peanuts. They might as well just drop it in a box because that packing is far too stiff for something with a large area compared to its weight.
Bill