NEW PRODUCTS
Lab-flo ΤΜ
PVC distilled w a t e r faucet protects purity of your purified w a t e r
Model Bl-9505-1
• Maintains original purity of distilled, deionized a n d demineralized water • needle valve affords fine d r o p - b y - d r o p control • t r o u b l e - f r e e packless s l i d i n g seal construction • a v a i l a b l e in l e d g e or p a n e l m o u n t e d styles
MIX GENTLY This polarographic research instru ment, with minor modifications, fol lows the design, specifications, and performance of the ORNL Q-1988-A. The instrument features an all-elec tronic polarizing circuit, analog com puter derivative-taking circuit, parallel-T RC filter network for optional complete damping of d.m.e. oscilla tions and for measuring average cur rents, peak follower circuit for meas uring maximum currents, linear re sidual current compensator, initial current compensator, selection of cur rent ranges from 0.0005 to 500 microamps full scale, reversible scan direction, infinitely variable span po tential, and selection of nine scanning rates from 10 to 3 0 0 m v . / m i n . In diana Instrument and Chemical Corp., 9 1 6 S. Highland, Bloomington, Ind.
413
Fully guaranteed; thousands in use. Supplied with tank clamp or ring-stand clamp in bronze; removable 12-inch shaft and 2-inch propeller in 3 1 6 stain less steel or Monel. Order from your supply house, or write us. Specify LIGHTNIN Model F Mixer: For H O v 60cy l p h $72.00 For 220v 60cy l p h $76.00
LAB-FLO SPEC MANUAL
35b Refer to 1963 Sweet's Catalog, C o d e : - ^ -
T&S BRASS AND BRONZE W O R K S , I N C . 128 Magnolia Ave., Westbury, L.I.,» ; Y.! : Area Code:; 516/EDgewood 4^5104 : j
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NATIONWIDE LAB-FLO SALES AND STOCK COVERAGE SERVICE FIXTURES · HOSE C O C K S · REMOTE CONTROLS · COMBINATION FIXTURES · RECEPTACLES Circle No. 94 on Readers' Service Card
138 A
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ANALYTICAL CHEMISTRY
You need only one mixer to do both. It's the LIGHTNIN Mixer, Model F. You get exactly the degree of action you need, with stepless speed control from 100 to 1600 rpm. Run it for a few seconds—or for weeks. Its quiet friction drive never needs lubrication; provides increased torque at slow speeds. Drive and 1/30hp fan-cooled motor are enclosed, safe with flammables.
The T&S Lab-flo PVC rigid gooseneck faucet provides the "purity link" for all purified water from intake to dispensing: end. Here is another example of Lab-flo . specialized development to solve service problems in the laboratory. High quality and reliable performance at every outlet, for all types of laboratories and all service requirements, rate Lab-flo laboratory serv ice fixtures on top of the preferred list for specifiers and users. Be sure you get the : finest — insist on Lab-flo. Write or call for PVC Faucet Bulletin No. 9500L or complete Lab-flo Catalog No, 90-A. This dynamic LAB-FLO planning guide provides all of the newest drawings and data for roughing-in or specifying a complete laboratory service fixture system, or any part: of it. Write or call for your per·: sonal, registered copy.
OR VIOLENTLY
Microscope Cold Stage CY3 offers a range of - 8 0 ° to + 8 0 ° C. Cooling is provided by thermoelectric elements which transfer heat from the sample to a tiny integral heat exchanger. Using 15° C. tap water in the heat ex changer, the instrument will work down to —60° C. Hotter or colder liquids will shift the working range ac cordingly. Industrial Instruments Inc., 8 9 Commerce Rd., Cedar Grove, N. J . 414
There's a full line of rugged, heavy-duty LIGHTNIN Mixers and accessories for the laboratory. Bulletin B112 describes them all. To receive it, check reader service card or write us.
^tffffifnffiMixers*^ MIXING EQUIPMENT Co., Inc. 160-c M l . Read Blvd., Rochester 3 , N . Y . In Canada: Greey Mixing Equipment, Ltd., 700 Miranda Ave., Toronto 19, Ont. In Europe: Lightnin Mixers, Ltd., Poynton, Cheshire, England Circle No. 67 on Readers' Service Card
