{TAIL ~ The amount} of burn chemical often ranges from about 1 percent to about 15 percent, {HEAD ~ preferably about 5 to about 10 percent}, based on the total weight of the formulation 
{ TAIL ~ The amount } of burn chemical often ranges from about 1 percent to about 15 percent , { HEAD ~ preferably about 5 to about 10 percent } , based on the total weight of the formulation
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH