The package 5, wherein said sealing means is {HEAD ~ a heat seal} for closing said open end of {TAIL ~ said barrier bag} 
The package 5 , wherein said sealing means is { HEAD ~ a heat seal } for closing said open end of { TAIL ~ said barrier bag }
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL