allowing the second reagent to be absorbed through the top layer of the pad to activate {TAIL ~ the first reagent} by flowing through the rupturable seal after breaking to form {HEAD ~ an activated chemical test pad} in the sealed package 
allowing the second reagent to be absorbed through the top layer of the pad to activate { TAIL ~ the first reagent } by flowing through the rupturable seal after breaking to form { HEAD ~ an activated chemical test pad } in the sealed package
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH