GAS HANDLING EQUIPMENT, NAMELY PRESSURE REGULATORS, FLOW AND LEVEL CONTROLLERS, ELECTRONIC GAS DISTRIBUTION PANELS AND CONTROL AND PURGE PANELS, ASSEMBLIES AND DEVICES, MONITORING AND ANALYZING DEVICES, NAMELY GAS METERS; MANIFOLDS AND SWITCHOVER DEVICES AND SYSTEMS, COMPRISED PRIMARILY OF ELECTRICAL CONTROLLERS, GAS REGULATORS, CHECK VALVES, INLET AND OUTLET GAUGES, PROCESS PANELS AND GAS SUPPLY CONDUITS, FOR CHANGEOVER BETWEEN SUPPLY SOURCES; STATIONS FOR PANEL OR WALL MOUNTING OF REGULATORS; GAS SPARGING APPARATUS FOR THE INJECTION OF GASES IN INDUSTRIAL PROCESSES; PYROLYZERS; TRACE ANALYZERS; GAS HANDLING, DISTRIBUTION AND APPLICATION SYSTEMS COMPRISED OF ENCLOSURES, REGULATORS, GAUGES, PRESSURE SWITCHES, PIPES, MANIFOLDS, ISOLATION BOXES, CONNECTORS, SWITCHOVER DEVICES AND DELIVERY APPARATUS, SOLD AS UNITS, FOR GASES AND LIQUIDS USED IN INDUSTRIAL AND SCIENTIFIC PROCESSES AND APPLICATIONS, AND REPLACEMENT PARTS THEREFOR; GAS CABINETS FOR THE STORAGE AND DELIVERY OF GASES, COMPRISED PRIMARILY OF ENCLOSURES, CYLINDER RAMPS, INDEPENDENT CONTROLLERS, SWITCHOVER DEVICES, PURGING EQUIPMENT AND PROCESS PANELS; OXYGEN FLOW CONTROL SYSTEMS, COMPRISED PRIMARILY OF FLOW METERS, FLOW CONTROL VALVES, PRESSURE REGULATORS, GAS SUPPLY CONDUITS AND CONTROLLERS, FOR OXYGEN ENRICHMENT OF COMBUSTION AIR FLOWS; SPARGING GAS SUPPLY AND CONTROL SYSTEMS COMPRISED PRIMARILY OF IN-LINE SPARGERS AND GAS SUPPLY AND CONTROL DEVICES AND CONNECTORS, AND REPLACEMENT PARTS THEREFOR; GAS ANALYSIS SYSTEMS, NAMELY INTEGRATED TRANSPORTABLE GAS ANALYSIS CARTS COMPRISED OF SAMPLING AND CALIBRATION APPARATUS, INSTRUMENTATION FOR MEASURING AND MONITORING GASES AND MOISTURE AND PARTICULATE MATTER IN GASES AND COMPUTER SOFTWARE FOR DATA ANALYSIS; ELECTRONIC CONTROLLING MEANS, NAMELY, ELECTRICAL CONTROLLERS, AND DATA PROCESSING COMPUTER PROGRAMS FOR THE AFOREMENTIONED GOODS, ALL OF THE AFORESAID GOODS BEING FOR USE IN HANDLING, STORAGE, DISTRIBUTION AND/OR APPLICATION OF COMPRESSED AND LIQUEFIED ATMOSPHERIC AND PROCESS GASES USED IN INDUSTRY, SCIENCE AND/OR IN THE FIELD OF HEALTHCARE