Hi listmembers, This is not a directly related isotope question but there may be someone out there who may be able to help - especially the UK contingent. Does anyone have a manual for a Centra 7R refrigerated centrifuge that I can borrow or photocopy please. I have attempted to get in contact with the company (Damon/IEC) on their UK telephone number circa 1984 (0(1)592 604689) but this is not recognised. British telecomm can't help! The address I have, which is now probably as useless as the telephone number is: Damon/IEC UK, Lawrence Way, Brewers Hill Rd. Dunstable , England. Thanking you in advance Paul Kennedy Stable Isotope Laboratory Marine Science Laboratories University of Wales - Bangor Menai Bridge Anglesey LL59 5EY U.K. email [log in to unmask] Tel + 44 (0)1248 351151 exn 2847 Fax + 44 (0)1248 716367