From: mstreet@internode.on.net   
      
   I noticed some discussion of this combination some time back.   
      
   Is there any reason that rather than having separate N20 and propane tanks   
   you can't have the gases mixed in a single tank?  Would the propane, being   
   a hydrocarbon, make the N20 shock sensitive?  Or does the big difference in   
   the vapour pressures mean that it is more structurally efficient to have a   
   separate (lighter gauge) propane tank?   
      
   ta!   
      
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   Malcolm Street   
   Canberra, Australia   
   The nation's capital   
      
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