Document 3Q5LLZKxnz8E5brnrdepKrR46

To: U139161 --TXDECD U080665 --S21VM U066569 --MADECD JONES, CAROL C A HAHNE, ROLF R M HEINZE, BRUCE B A U433989 --TXDECD U145166 --TXDECD U062376 --MADECD EDENS, MARTHA R. M LEWIS, GREGG G E MEIER, GARY G L From: Neil Hawkins, C&PF Env. Health & Reg. Affairs, 2020 WHDC, 6-8237 SUBJECT: Alkanolamines Outside IH Labs Carol, Rolf Hahne got back to me regarding outside laboratories. You can recommend two labs to your customers (Rhone Poulenc I believe is that most interested). 1) Clayton Environmental Consultants, 313-344-2643 They say they can do alkanolamine analysis by two different methods. You should have them call directly for more information. (NIOSH method 2007, $60 per sample. NIOSH method 3509, $45 per sample) 2) Datachem Laboratories, 800-356-9135 They say they can do analyses in their Salt Lake City labs. Again they should call before sending them any.samples. We know less about this lab than Clayton, but they are quite reputable. You could also have them call Rolf (6-9065) if more information on Dow methods is needed or other tips. Let me know if you need additional information. Regards, Neil Oo 023846 CONF rOFNTTA;