{HEAD ~ The amount} of wetting agent often ranges from about 0.5 percent to {TAIL ~ about 2 percent}, preferably about 0.8 to about 1 percent, based on the total weight of the formulation 
often ranges to
{ HEAD ~ The amount } of wetting agent often ranges from about 0.5 percent to { TAIL ~ about 2 percent } , preferably about 0.8 to about 1 percent , based on the total weight of the formulation
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH