9 SCIENTIFIC, LABORATORY AND MEASURING APPARATUS AND INSTRUMENTS, NAMELY, ULTRAFILTRATION MEMBRANES FOR USE WITH FLUIDS FOR PURPOSES OF CONCENTRATING, DIAFILTERING AND PURIFYING BIOMOLECULES IN LABORATORY DEVICES AND PROCESS APPLICATIONS; MICROFILTRATION MEMBRANES FOR USE WITH FLUIDS FOR PURPOSES OF FILTERING AND PURIFYING BIOMOLECULES IN LABORATORY DEVICES AND PROCESS APPLICATIONS; FILTERING UNITS FOR THE PURIFICATION OF WATER FOR LABORATORY USE COMPRISING PUMPS, ELECTRONIC CONTROLS, MEMBRANES, FILTERS, FILTER HOLDERS, FUNNELS, FUNNEL DISPENSERS, PIPING, VALVES AND CARTRIDGES; CHROMATOGRAPHY APPARATUS AND INSTRUMENTS COMPRISED OF VALVES, COLUMNS, SLURRY TANKS, LIQUID TANKS AND SLURRY TRANSFER SKIDS, CHROMATOGRAPHY CHEMICALS AND COMPONENTS THEREOF; ION EXCHANGE APPARATUS, NAMELY, PURIFICATION CARTRIDGES COMPRISED OF ION EXCHANGE RESIN, FOR LABORATORY USE IN REMOVING CONTAMINANTS FROM WATER; FILTERS USED IN PROCESSING OF FINE CHEMICALS SUCH AS CHEMICALS USED IN ETCH BATHS IN THE SEMICONDUCTOR INDUSTRY; TESTING APPARATUS, NAMELY, ELECTRONIC AND ELECTRICAL TESTING APPARATUS FOR LABORATORY CONTAMINANTS AND CLINICAL ANALYSIS-NAMELY, ELECTROPHORESIS SEPARATORS; DESITOMETER FOR SEPARATION BY ELECTROPHORESIS ON CATHODE RAY TUBE PICTURE; CONTROL MODULES FOR THE AUTOMATIC SHUTDOWN OF FUEL IN THE EVENT OF POWER LOSS, FLOW STOPPAGE, OR EXCESSIVE FUEL CONTAMINATION; INCUBATORS FOR MICROBIOLOGICAL SAMPLES ON FILTERS; ULTRAVIOLET STERILIZERS FOR FILTER HOLDER BETWEEN FILTRATIONS AND FOR WATER SUPPLIES; SEPARATORS FOR FLUIDS IN SUCCESSIVELY SMALLER SIZE FILTERS; STERILIZING FILTERS; STAINLESS STEEL FILTER HOLDERS FOR LIQUID FILTERS; ELECTRONIC AUTOMATED MEMBRANE FILTER-TESTING APPARATUS FOR USE IN MEASURING THE INTEGRITY OF FILTERS USED IN THE PHARMACEUTICAL INDUSTRY; TESTING APPARATUS FOR THE DETECTION OF SURFACE ACTIVE AGENTS; COMPACT DISCS FEATURING USER MANUALS, PRODUCT LITERATURE, TECHNICAL PUBLICATIONS, IN THE FIELD OF WATER PURIFICATION; SOFTWARE, NAMELY, INTEGRITY TEST, OPERATING SYSTEMS, PROTOCOL, INSTALLATION CONTROL, SYSTEM NETWORK, RELATING TO FILTRATION; AND PARTS AND FITTINGS FOR ALL OF THE AFORESAID GOODS EXCLUDING SECURITY APPARATUS, INSTRUMENTS AND INSTALLATIONS