EQUIPMENT APPARATUS INSTRUMENTS
Wide Variety of N e w Instruments Highlights ISA Exhibit those on instrumentation, management and education. Workshops and clinics featured informative, instructive sessions. The clinic on analytical instruments was of particular interest to those in the field of analytical chemistry, and the cooperation of the contributing companies (Beckman, Mine Safety Appliances, Leeds & Northrup, North American Phillips, and Perkin-Elmer) along with the ISA committee made the clinic a noteworthy success. Company personnel staffed the various exhibit booths and were on hand to demonstrate equipment, distribute literature, and answer questions of interested visitors. In addition to the booths sponsored by individual companies, an entire display area was devoted to special projects in measurement and con-
NEW YORK. An impressive array of new instruments was shown for the first time at the Instrument-Automation Exhibit held here during the week of Sept. 17-21. The Instrument Society of America took over the New York Coliseum fcr its 11th Annual Meeting and incorporated the use of 85,000 square feet of booths for displaying products ranging from instruments for continuous analysis of chemical streams to remote controllers for guided missiles and compact desk-top digital computers. Thousands of people representing science and industry, including many foreign visitors, attended the week-long event. Almost 200 papers emphasizing new concepts and techniques were presented at the technical meetings, and several symposia were held, including
Thermometers In Stock f o r I m m e d i a t e D e l i v e r y . Ranges and Immersion Lengths to meet Practically Every Need. 8315 Ace-Engraved Stem I - 1 0 / 3 0 Joint—Centigrade Scale. 828S and 8290 Kimbie—Centrigrade Scale. 8295 Kimble-Fahrenheit Scale. 8300 Kimble—Centigrade Scale.
trol now on the workbenches of eight leading universities. Several foreign firms—Japanese, English, German, The Netherlands, Italian, and French—also displayed samples of their instrument development and added to the international flavor of the entire program. The following items are some that were shown for the first time at this exhibit and may be of interest to our readers. New Instruments for Gas and Liquid Analysis A thermal conductivity analyzer and two models of their LIRA infrared analyzers were shown by the Mine Safety Appliances Co. All three instruments feature the specific measurement and accurate analysis of a single component in a mixture of gases or liquids. The thermal conductivity apparatus takes advantage of convective heat loss in addition to the standard thermal conductivity principles by using four detector cells instead of the usual two. The filaments of all four cells are connected to form the arms of a Wheatstone bridge, and control of the effects of appropriate bridge arms permits application of the instrument in a variety of gas analysis problems. The Model 100 LIRA infrared analyzer incorporates the null balance principle by varying voltage on one infrared source, and the manufacturer recommends it for use in problems requiring extreme sensitivity. Where streams are of a very complex nature, the high selectivity and stability of this apparatus make it particularly suitable. Operating on the principle of direct deflection, the Model 200 LIRA infrared analyzer is applicable in problems
Ace h a s t h e Thermometer you want. For Complete Listing of Thermometers see Ace Cat, "50." Also Carried in Stock at our Louisville Warehouse.
ACE GLASS INCORPORATED V I N E L A N D N E W JERSEY LOUISVILIE, KY., 639-41 SOUTH HANCOCK ST.
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where stability is required, but extreme sensitivity and selectivity are not so essential. This model features a compact assembly, with all component ANALYTICAL
CHEMISTRY
