NEW PRODUCTS
detect and continually record...
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Combustibles Analyzer Combustible analyzer-indicator de tects combustibles in ranges as low as 0 to 1% in gas mixtures. Wide choice of ranges expressed as CO, H 2 , or any suitable gas, is available. It has a re sponse of 2 seconds, sensitivity of 0.05% H 2 , and accuracy of ± 2 % of range. A recorder may be attached. Integral rotameters provide adjustment of re quired air/sample mixture. Operation is based on principle of catalytic com bustion in heated filament. Model JW Hays 646. The Hays Corp. 438
AMMONIA
concentration down to 0 . 0 0 5 ppm «*?»« with the
T E C H N I C O N ®
Auto Analyzer®
Voltage Divider A voltage divider which extends the operating range of a potentiometer al lows calibration of voltmeters with a potential up to 450 volts in four ranges: 15, 150, 300, and 450 volts with multipliers of 100, 200, and 300 on each range. Cenco Instruments Co. 439
A u t o m a t i c a l l y a n a l y z e s or monitors f o r A m m o n i a in common or complex media A field-proven system... over 2000 AutoAnalyzers are now auto mating routine wet-chemistry analyses in plants and laboratories throughout the free world . . . analyzing up to 60 repetitive samples per hour and monitoring on-stream continuously. Mr Detects other trace elements too, e.g.; citric acid, acetyl cholinesterase, starch, benzoic acid, etc. A total of 75 fullyautomated determinations now possible, more are coming.
Dissolved Oxygen Analyzer
Send for your free abstract method kit and brochure AKD today
A simplified dissolved oxygen an alyzer provides continuous on-stream analysis in p.p.b. to an accuracy of 5%. Range selection is 0 to 20 p.p.b. or 0 to 100 p.p.b. D.c. millivolt out put can be recorded on circular or strip charts. Functioning is unaffected by flow rates or water additives. Model 625. The Hays Corp. 440
TECHNICON
CONTROLS, INC.
R E S E A R C H PARK · C H A U Ν C Ε Υ, Ν. Y. Circle No. 136 on Readers' Service Card
Tissue Grinder
SPLIT SECOND SAFETY
A tissue grinder, used to macerate tissue, has an interchangeable rod and barrel. The rod fits into a chuck for mechanical operation. Barrel clearance is .005 to .008 inch. Ace Glass, Inc. 441
Model 7300 Cast aluminum receptor; twin fountain heads direct automatically regulated streams into the eyes.
Diffusometer A photo-gonio-Diffusometer is a light-scattering device manufactured in France. It is used to determine the size, form, and weight of large mole cules as well as suspensions and emul sions for a wide variety of materials. Results are presented instantaneously. Solutions and suspensions can be stud ied at controlled temperatures up to 150° C. Applied Research Labora tories. 442
EMERGENCY
Sensitive eye tissue can be destroyed in moments. Contamination from industrial caustics and chemi cals requires instant first aid . . . and a HAWS Emergency Eye-Wash F o u n t a i n can mean the difference between temporary irritation and perma nent injury! Write for your free HAWS catalog.
Arc Testing An arc resistance tester meeting pertinent ASTM and Federal specifi cations provides a test potential con tinuously variable from 0 to 12 kv. a.c. and is rated at 40 ma. Model 8540-A. Associated Research, Inc. 443
EYE-WASH
EYE-WASH FOUNTAINS Since
1909
a product of HAWS DRINKING FAUCET COMPANY 1443 Fourth St., Berkeley 10, Calif. Circle No. 58 on Readers' Service Card VOL. 34, NO. 3, MARCH 1962
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