Document XOaXggxgb3OrDVL7LDa1KGyB4

AR226-2485 Walter R long 10/08/2001 10:38 AM To: cc: Subject: Ta-Wei Fu/SBDuPont@DuPont Takuya.ichida@daikin.co.jp, Satoshi_komatsu@notes.che.daikin.co.jp, Charles J Noelke/AE/DuPont@DuPont, Steven H Swearingen/AE/DuPont@DuPont, Katsunosuke Kitagawa/PO/DuPont@DuPont, Nancy L Tanzola/AE/DuPont@DuPont, David R Wallace/AE/DuPont@DuPont, Shawn E Messmger/AE/DuPont@DuPont Re: PROPOSED APFO SPECIFICATIONS Q How does this list compare with the FAX that Daikin sent? Here are a few points: In my notes from the meeting I have listed for Recovered/Purified indicated below. Also, it was unclear to me if these specs were to be permanent or monitored during startup. Again, what did Daikin propose in their FAX? For APHA, and Fluoride ion why not specify the JL methods? We have already done the work and we use them in RAS. These are essentially the same as the 3M methods but differ slightly to fit available equipment. With regard to the C6, C7, and C8 specs - we use a mass spec detector in our routine work because it yields more information on other impurities. We also use a slightly different sample prep procedure. With proper calibration this is equivalent to the 3M method. Perhaps a legalistic statement such as "3M method 171.140.7 or equivalent" would be appropriate. Ta-Wei Fu ^y Ta-Wei Fu 10/05/2001 04:57 PM To: cc: Subject: Takuya.ichida@daikin.co.jp, Satoshi_komatsu@notes.che.daikin.co.jp, Charles J Noelke/AE/DuPont@DuPont, Walter R Tong/AE/DuPont@DuPont, Steven H Swearingen/AE/DuPont@DuPont Katsunosuke Kitagawa/PO/DuPont@DuPont PROPOSED APFO SPECIFICATIONS Team, Based on the discussions during our video/tele-conferencing on 09/28/01, the proposed specifications for the virgin and recovered/purified APFO are summarized below. If anything listed below is different from what we discussed and agreed, please point it out to alt on the distribution of this note so we can quickly gain alignment and firm up these specifications before 10/18. For Virgin APFO: 1.PH existing 3M method 30.2 2. Solids Content 3. Fe COMPANY SANITIZED CBI REMOVED EID340382 on 100% APFO v 4.Na 5.K 6-Absorbance 20% solution, 7.APHA Color 8.F- method 53.9.1 9.C8 C7 C6 For Recovered/purified APFO: 1.PH existing 3M method 30.2 2. Solids Content 3.Fe on .100% APFO 4.Na 5.K 6.Absoibance 20% solution, 7.APHA Color 8.Fmethod 53.9.1 9.C8 171.140.7 C7 C6 Best Regards Ta-Wei COMPANY SANITIZED CBI REMOVED EID340383