parts a and b table iv______________________________________petri dish days sawmill weeksexample 30 60 90 120 150 180 8 14 20 26______________________________________1 0 0 0 0 0 0 0 0 0 02 0 0 0 0 0 1 0 0 0 03 0 0 0 0 0 1 0 0 0 04 0 0 0 0 0 1 0 0 0 05 0 0 0 0 0 1 0 0 0 06 0 0 0 0 0 0 0 0 0 07 0 0 0 0 0 0 0 0 0 08 0 0 0 0 1 2 0 0 1 1a 5 5 5 5 5 5 5 5 5 5b 5 5 5 5 5 5 5 5 5 5c 5 5 5 5 5 5 5 5 5 5uncoated 5 5 5 5 5 5 5 5 5 5______________________________________ 0 no discoloration no growth 1 single less as 1 mm spot 5 discoloration and green yellow and white fungal growth the astm c 4445 84 requires 2 to 4 weeks incubation before the evaluation because of the excellent results with the composition of the inventions the time and duration of the experiment was extended to 180 days the untreated and latex treated test pieces first started showing discoloration in three days and growth of the fungi at middle of second week the lumber on the sawmill was first checked after three weeks even at that time the untreated and latex treated surfaces which were not in contact with surface treated with solutions from examples.