Thanks 45yearsagasman and wsts for your replies.
I take it then that the hose itself is safe, but can I ask if the fitment attached to the end of the LPG hose that connects to the NG pipe, is that also safe?
I have recently had an FFD gas cooker installed.
A few days ago a friend noticed that the hose connecting the cooker to the natural gas pipe was an LPG, identifiable by the red stripe on the black hose.
Can I ask if this LPG is safe to use with a domestic cooker that uses natural gas?