- for spectrography. organic solvents "distilled in glass" for numerous instru wavelength. see also hollow cathode and cathodeon in Category 4 C-13, NMR reference IR detector Beta-reference sources. - standard radionuclide solutions. Cadmium mercury telluride Californium-252, fission fragment sources Colored glass filters for spectrophotometry see also absorption spectroscopy (Category 3), and also filters (Category 4) Combustion. Conversion electron sources Counting equipment/nuclear/calibration. Cryometry - hydrocarbons suitable for comparative cryometric membranes with precise pore geometry particle size. . particulate standards. see also sizing, Category 4 - standardized solutions Gas chromatography, Category 1 calibration of instrumentation. Gases gravimetric mixtures, standards linked to mass measurements. Kr-85 and tritium mixtures deuterated radioactive mixtures line, counter, double, crossed, crossed line, intermediate. varieties of: rocket, fused rocket, solutions Cl, Br, Cu, I. . Ion chamber - detectors, gamma reference sets Isotopes stable C-13, H-2, 0-17, 0-18, N-15. |