Take a number — any atomic number

from 22 to 97

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X-my spectrography — with GE's X R D ^ S ^ - ^ ^ · · * 4 * ^

will give you fast, accurate, direct quantitative analysis

There's no guesswork when you handle quantitative analyses with the G F XRD-3S x-ray spectrometer. Take any sample — you get a direct chart record of com­position by clement in the 22-97 range.

Accuracy is maintained over a wide range of con­centration — from hundreths-of-a-percent to 100%. It's fast — only one to five minutes per element — and non-destructive.

Basis for this outstanding performance is GE's patent­ed curved focusing mica crystal. Because it permits a high degree of resolution coupled with very high in­tensities, accuracy and speed

&&?&3

exceed those possible with conventional flat crystals. General Electric XRD-3S spectrometers are prov­

ing their value in all fields — chemical, petroleum, ceramic, mineral, metallurgical. "Metallurgical Ap­plications of X-Ray Fluorescent Analysis" points out how Allegheny Ludlum Steel Corporation applies this method. For a copy and descriptive literature, write X-Ray Depa r tmen t , Genera l Electric Company^ Milwaukee 1, Wisconsin. Request Pub. AP-10.

You can put your confidence in —

GENERAL ELECTRIC

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