26 SYSTEMS INSTRUMENTS, AND APPARATUS USED FOR ANALYSIS, [ SYNTHESIS, COUNTING, MEASURING, ] DATA ACQUISITION AND PROCESSING, [ DETECTION, INSPECTION, TESTING, ] DISPLAY, [ RECORDING OR STANDARDS PURPOSES (FOR EXAMPLE, GAS CHROMATOGRAPHS, [ CHN ANALYZERS, OSMOMETERS, AUTO-VISCOMETERS, MICROWAVE SPECTROMETERS, ] WAVE-FORM DISTORTION ANALYZERS, SPECTRUM ANALYZERS, FREQUENCY SYNTHESIZERS, COUNTERS, AMMETERS, OHMMETERS, IMPEDENCE METERS, VOLTMETERS, POWER METERS, FREQUENCY METERS, SWR METERS, RATIO METERS, MICROWAVE NOISE FIGURE METERS, FREQUENCY MEASUREMENT INSTRUMENTS, [ NUCLEAR MEASUREMENT INSTRUMENTS, ] QUARTZ THERMOMETERS, DATA ACQUISITION AND HANDLING SYSTEMS, ] CALCULATORS, COMPUTERS AND DATA PROCESSING SYSTEMS, [ ULTRASONIC TRANSLATOR DETECTORS, ] [ TEST INSTRUMENTS FOR LOCATING FAULTS IN POWER OR TELEPHONE CABLES, ELECTROMAGNETIC TRANSMISSION LINE INSTRUMENTS, OSCILLOSCOPES, PLOTTERS AND RECORDERS, AND FREQUENCY AND TIME STANDARDS) AND ACCESSORIES (FOR EXAMPLE, COLUMN MATERIALS AND BACKFLUSH VALVES FOR USE WITH CHROMATOGRAPHIC INSTRUMENTS, CAMERAS FOR USE WITH OSCILLOSCOPES, ETC;) USED WITH THESE SYSTEMS, INSTRUMENTS, AND APPARATUS ]