490 LABORATORY EQUIPMENT AND ACCESSORIES (FOR GENERAL ANALYTICAL AND RESEARCH USE): NUCLEAR, OPTICAL, AND PHYSICAL 49006 * Barometers and Manometers, Laboratory Type 49008 * Calorimeters and Accessories 49009 * Centrifuges, Desk Top and Free Standing 49014 * Cleaners, Ultrasonic 49015 * Colorimeters, Reflectance 49016 * Colorimeters, Optical, Comparators (See Class 493 for Photoelectric Colorimeters) 49018 * Cytopathology Analyzer 49019 * Density Gradient Equipment: Fractionators, Mixers, etc. 49021 * Dry Boxes and Glove Boxes 49024 * Dynamometers (For Automotive See Class 075) 49029 * Electron Microscopy Equipment: Electron Microscopes, Vacuum Sputtering Systems, etc. 49032 * Environmental Test Chambers and Rooms (Controlled Temperature, Humidity, etc.) 49034 * Filters, Optical: IR Interference, etc. 49035 * Gamma Ray Spectroscopy Detector 49036 * Glassware Washing Apparatus 49039 * High-Pressure Equipment and Accessories 49044 * Lamps and Other Radiation Sources, Specialized: Cathode, Infrared, and Ultraviolet Lamps, etc. 49047 * Liquid Scintillation Counting Systems 49051 * Lasers, Masers, and Accessories 49052 * Leak Detectors, Vacuum: Helium, Ultrasonic, etc. 49053 * Magnetic Equipment: Demagnetizers, Electromagnets, Fluxmeters, Gaussmeters, Magnetometers, etc. 49055 * Mass Spectrometers and Accessories 49056 * Micromanipulators 49057 * Microscope Accessories: Adapters, Condensers, Filters, Illuminators, Lenses, etc. 49058 * Microscopes, All Types (For Electron See 490-29, and For Operating Room See Class 465) 49065 * Nuclear Equipment and Accessories: Magnetic Shielding, Particle Accelerators, Counters (Research Type), Scintillating Crystals, etc. 49068 * Nuclear Magnetic Resonance (NMR) Apparatus 49069 * Nuclear Radiation Sources (Not for Medical Use) 49071 * Nuclear Safety Equipment and Supplies: Dosimeters, Film Badges, Lead Shielding, Radiation Monitors, Survey Meters (For Warning Tape See Class 832) 49072 * Optical Laboratory Equipment: Beam Splitters, Choppers, Diffraction Gratings, Interferometers, Monochromators, Optical Benches and Tables, etc. 49073 * Photometers, Reflectance 49074 * Physics Equipment (Not Otherwise Classified) 49075 * Personnel Monitoring (ETO, Formaldehyde) 49077 * Pumps, Liquid (Laboratory Type): Metering, Peristaltic, Syringe, etc. 49078 * Pumps, Vacuum and Pressure/Vacuum 49079 * Radioactive Waste Disposal Systems and Accessories 49080 * Sorption Measurement Systems (For Surface Area of Fine Particles, etc.) 49084 * Spectrometers: Auger, Electron Energy Loss, X-Ray Frequency, etc. (For Mass Spectrometers See 490-55) 49088 * Spectroscopes, Direct Reading 49090 * Testing Instruments (Not Otherwise Classified) 49092 * Thermal Analysis, Thermogravimetry, and Thermal Conductivity Apparatus 49093 * Ultrasonic Equipment (For Research): Ultrasound Interferometers, Pulse Generators, etc. 49094 * Vibration Isolation Supports 49096 * X-Ray Diffraction and Electron Diffraction Equipment