Document ga1E4d3v6ObnzzkKyVJaw4pZV

Ta~Wei F u 10/11/02 11:57 AM To: Katsunosuke Kitagawa/PO/DuPont@DuPont cc: Hidetaka Hiromatsu/PO/DuPont@DuPont Subject Re: C-8 in the AirD Kitagawa-san, It is rather complicated to explain on paper concerning the C EG issue. We had a C-8 review with Tanaka-san and Hiromatsu-san when they were at W W last Friday. I also went through some explanation around C E G .... I hope it will be easier for you to understand ail the details from Hiromatsu-san. Hiromatsu-san and Tanaka-san can also explain to you why it is preferred to discuss this issue face-to-face rather than via e-mail in order to avoid any possible misunderstanding. Hope things are moving forward well for you. W e started to get a few coolers days in the last week or so. The day-time temperature is around 65 F. Hope to have an opportunity to visit with you some time so o n ! Regards Ta-W ei Katsunosuke Kitagawa Katsunosuke Kitagawa 09/13/2002 12:56 A M To: Ta-Wei Fu/cL/DuPont@DuPont cc: Oscar T Gaiza/AE/DuPont@DuPont, Hidetaka Hiromatsu/PO/DuPont@DuPont Subject: C-8 in the Air Hello Fu-san, how are you doing these days? Here in Shimizu, temperature become a little cooler than HOT AUGUEST, but still High is around 85F. During C-8 Core team meeting, Garza-san mentioned W W continue to work C-8 reduction in the A ir to 0.3 ug/m3. ' Could you give us a little more detail on this, and how to measure such a low C-8 concentration ? K.Kitagawa PS: 1. Regarding pH of recovered C-8, we get 5.5 -7.4 since the middle of June(4 Lots). This may be improved by pH senser replacement. So, we will watch the level before we ask change of spec. . 2. When will FayettBvil start C-8 production? When you finished preliminary test, we would like to evaluate FW C-8 as the second source material. EID712791