From: NAME: WILLIAM G KENYON FUNC: Chemicals/Electronics TEL: 302-652-4272 <KENYONWG AT A1 AT ESVAX> To: NAME: [log in to unmask] <"[log in to unmask]"@ESDS01@MRGATE@ESVAX> Boeing and ECD have provided excellent input on this issue. There is another point that needs to be brought out. Saponifiers work by chemical reaction with the rosin to form a water removable rosin soap. Unlike all the other cleaning processes that depend on dissolving the soil, saponification depends on chemically reacting with it. Chemical reactions are a function of concentration of the reactants and temperature. Also, only a certain percentage of molecular collisions have the two molecules oriented correctly to give the desired reaction. Also when the typical measure of saponifier (pH) drops by 1 unit, it means that you have only 0.1 of the previous level of saponifier, since pH is a log scale. The typical way to compensate for these factors is to overload the system with saponifier, which can lead to compatibility problems. When someone does find an accurate method of tracking just the active saponifier concentration, then this information could be fed back into a saponifier drip feed addition system and the belt speed, so that if the saponifier feed went down, the belt speed would slow to compensate for the reduced saponifier concentration. So inventors- here's your chance! -Bill Kenyon 302-652-4272/-5701 T/F