S SPECTROS

ANALYTICAL INSTRUMENTATION--NAMELY, MASS SPECTROGRAPHS AND PARTS THEREOF; GAS AND LIQUID CHROMATOGRAPHS AND PARTS THEREOF; ELECTRON, PHOTO-ELECTRON, X-RAY PHOTO-ELECTRON, ION MASS, AND ION SCATTERING SPECTROSCOPES AND PARTS THEREOF; AND SCANNING MICROSCOPES AND PARTS THEREOF; AND COMPUTER PRODUCTS AND SYSTEMS--NAMELY, COMPUTERS; COMPUTER PROCESSORS AND COMPUTER PROGRAM MODULES AND COMPUTER-BASED LABORATORY ANALYSIS, TEST, AND PROCESS CONTROLS