V O L U M E 2 1, NO. 11, N O V E M B E R
1949
31 A
Speedy · Occutata.
CHEMICAL ANALYSIS
• . . with the Evelyn PHOTOELECTRIC COLORIMETER For more than ten years this instrument has rendered outstanding performance in prominent domestic and foreign laboratories engaged in nearly every phase of chemical activity. Distin guished by almost classic simplicity of design, this instrument is noted for its sturdy and endur ing construction and for its unusual reliability and freedom from the mechanical and electrical deficiencies which can prove so costly in the efficient chemical laboratory. Because of the unique combination of accuracy, speed and simplicity of operation which it affords, the Evelyn Colorimeter is used to equal advan tage in both research and routine control labora tories. A detailed discussion of the design of this invaluable analytical tool is presented in our twelve-page Bulletin 460, available on request.
—produces α beautifully polished surface on practi cally all metals and alloys—represents a new revolutionary approach for metal· lurgical specimen preparation. *
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T h e new Buehler-Waisman Electro-Polisher is a sturdy, stream-lined, laboratory instru ment, designed for efficiency in performance. Ferrous and non-ferrous metals can be pre pared with equal speed and simplicity. Both large and small samples are readily accommo dated. Simple to operate—does not require an expert technician to produce good specimens. Speed in operation—various specimens may be prepared in a fraction of the usual time re quired. Economical—only a small amount of non-ex plosive chemical required. Results are dependable — scratch free speci mens,, uniformly etched for true structure examination.
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RUBICON COMPANY Electrical I n s t r u m e n t M a k e r s 3759 R i d g e A v e n u e · P h i l a d e l p h i a 3 2 , Pa.
THE BUEHLER LINE OF SPECIMEN PREPARATION EQUIPMENT INCLUDES—CUT-OFF MACHINES · SPECIMEN MOUNT PRESSES · POWER GRINDERS · EMERY PAPER GRINDERS · HAND GRINDERS · BELT SURFACERS · MECHANICAL AND ELECTRO POLISHERS · POLISH ING CLOTHS · POLISHING ABRASIVES
Buehler Ltd. A
P A R T N E R S H I P
METALLURGICAL APPARATUS
A PARTNERSHIP
145 WEST WACKER DRIVE. CHICAGO 1 . ILL.
