AJ Cope & Son Ltd. Alltech Associates Inc. Anspec Co. Inc. Ark-Plas Products Inc. ASTI Autoclave Engineers Inc. Balzers AG Bel-Art Products Berghof GmbH Brand GmbH + Co. Buck Scientific Inc. Chromacol Ltd. Cole-Parmer Instrument Co. Crawford Fitting Co. A Swagelok Co. Dr. Hermann KECK & Partner Dynalab Corp. Elkay Products Inc. Evergreen Scientific Fluoroware Inc. GEMU Gebr. Muller Apparatebau GmbH & Co. KG Herman Bohlender Hichrom Ltd. HPLC Technology Ltd. HPS Div. MKS Instruments Inc. Intermountain Scientific/BioExpress Ismatec S.A. Isolation Technologies Inc. Keystone Scientific Inc. Kloehn Co. Ltd. Kurt J. Lesker Co. Labokron Sinsheim GmbH Lachat Instruments Inc. Lee Co. Lee Products Ltd. Midwest Scientific Normschliff Geratebau Dr. Friedrichs-Dr. Matschke KG Norton Performance Plastics Corp. Omega Engineering Inc. Omnifit Ltd. P.J. Cobert Associates Inc. Parker Hannifin Corp. Instrumentation Connectors Div. Phase Separations Inc. Phenomenex Popper & Sons Inc. Pressure Products Industries Inc. Prometic Biosciences Inc. Rainin Instrument Co. Inc. Research Products International Corp. Rheodyne Inc. Rosys Anthos GmbH Safelab Systems Ltd. Scott Specialty Gases Inc. Semadeni Co. Ltd. SGE International Pty. Ltd. Sno-Trik Co. A Swagelok Co. Spectrocell Inc. Supelco Inc. Swagelok Co. Technicol Ltd. Thomas Scientific Uniclip Ltd. Upchurch Scientific Inc. USA/Scientific Plastics Inc. Varian Analytical Instruments Vici AG (Valco Europe) VICI Valco Instruments Co. Inc. VIT-LAB GmbH Wale Apparatus Co.