The test kit is {HEAD ~ a foil package} enclosing {TAIL ~ an absorbant pad} bearing a peroxygen agent and a solution of guaiac in alcohol in a separate packet or compartment from the absorbant pad 
The test kit is { HEAD ~ a foil package } enclosing { TAIL ~ an absorbant pad } bearing a peroxygen agent and a solution of guaiac in alcohol in a separate packet or compartment from the absorbant pad
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD 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 OTH OTH OTH OTH