SOLIDSLIQUIDSGASESSOLIDS-UQUIDSGASESSOLIDS
NEW PRODUCTS
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" T H E VERSATILE DESICCANT"
For Drying SOLIDS-LIQUIDS-GASES
NOW A LABORATORY VISCOMETER FOR CONTINUOUS VISCOSITY DETERMINATION AND RECORDING!
Solid-state Graphic Recorder is a bench-top instrument for general purpose laboratory use. It is 9 3 / 8 " χ 1 3 V 2 " and weighs 1 2 y 2 lbs. Fif teen chart speeds are available rang ing from 1 inch/hr. to 16 inches/ min. Brief specifications are: 1-mv. span plus 10 mv. 100 mv. 1-volt spans instantly selectable; pen speed 0.6 seconds full scale; accuracy 0.5 at 10 mv.; full scale zero adjustment plus 1 0 0 % zero suppression. Model G-14. Instrument Division, Varian Associates. 435
NEW BROOKFIELD RHEOLOG Gives You A Vital New Dimension Of Control! Regardless of the nature of the materials you're working with, the new Rheolog gives you a permanent record of viscosity on a continuous basis. Direct reading in centipoises, the Rheolog will de termine such non-Newtonian properties as pseudo-plastic ity, plasticity and dilatancy. Just as simply, you can get flow curves of t h i x o t r o p i c , rheopectic, time-dependent and temperature-dependent materials.
Dynamic C a p a c i t o r
REGULAR
DRIERITE
A low cost, all-purpose drying agent, D R I E R I T E is neutral in reaction, chemically stable, constant in vol ume, inert except toward water, in soluble in organic liquids a n d re frigerants, non-disintegrating, nonwetting, non-poisonous, non-cor rosive, repeatedly regenerative, and non-channeling.
INDICATING
Order directly from your Labora tory Supply Dealer. Write to us for our new 100-page book
W. A. HAMMOND DRIERITE COMPANY 120 Dayton A v e n u e , X e n i a , Ohio Circle Ne. 56 on Readers' Service Carl •
ANALYTICAL CHEMISTRY
"Tfessiire Gauge
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DRIERITE
While possessing all of the properties of regular D R I E R I T E , I N D I C A T I N G D R I E R I T E makes a clearly visible change from blue when dry to pink when exhausted.
138 A
A dynamic capacitor, also called a vibrating reed, permits measurement of currents as small as a fraction of a quadrillionth of an ampere, according to the manufacturer. It has been in corporated into a portable radiation de tector and the manufacturer envisions its use in a wide variety of ultra-sensi tive radiation detection devices. Victoreen Instrument Co. 436
Automatic-scanning tele-thermometer series is remote-reading and auto matically sequences through 3, 7, or 11 thermistor probe inputs. It can be set to indicate and provide re corder signals for each input for 20 seconds, I minute, or 5 minutes. It may be used for visual observation and manual scanning. The ther mometer and thermistor probes pro vide a range of — 4 5 ° to 150° C. YSI Model 4 7 . Yellow Springs In strument Co., Inc. 437
The Rheolog is portable, explosion-safe and offers the optimum in flexibility. De pending upon your choice of model,* readings are obtain able from 0 to 64,000,000 cps. The ratio of maximum to minimum ranges can be as high as 80,000:1. Important, too, the Rheo log easily and effectively links with standard pressure gauges and indicators or with strip chart or round chart recorders. Optional pneu matic or electrical signals between the two can be transmitted as far as 100'. Best news of all is the low cost! * 1 , 4 and 8 speed FOR FREE CATALOG, WRITE TODAY!
Viscosel Corporation P. 0. Box 240 Stoughton 1012, Massachusetts Circle No. 36 on Readers' Service Card
