NEW PRODUCTS
of sterilization. Available with dry spores of three ranges of heat resistance. American Sterilizer Co. P-44
Briefly Noted Recording Potentiometer. Model 6702 multipoint unit handles two to 24 points by using adapter kit. Measures any inputs from thermocouples or transducers. Panel or wall mounting. Weston Instruments. P-40
Millivolt Source. Instrument has two ranges—zero to 10 mv. and zero to 100 mv. Company says it is accurate within 0.25% over a reasonable period of time. Westronics, Inc. P-45
Instrument Linéariser. Model 110 continuously corrects output of nonlinear instrument so data can be read directly. Features 80-microsecond response time. Custom Engineering and Development Co. P-41
Triple Nosepiece Microscope. Nosepiece rotates to give 50, 150, or 300 power. Has swivel at base for inclined viewing and rack and pinion gears for focusing. Useful, the company says, for examining precision metal and tool work. Edmund Scientific Co. P-46
Linear Amplifier. Model LA-100, designed for use with boron trifluoride counters, has gain of 50 to 1600 in six positions. Stability is increased by eliminating fine gain, and 60-eycle effects are said to be absent from pulses being analyzed. Gyra Electronics Corp.
Refrigerated centrifuge
Thermistor Kit. Model G200 kit has 12 thermistors, each with resistancetemperature and voltage-current curves. Purpose is to enable engineers to become familiar with thermistors. Fenwal Electronics, Inc. P-47
P-42
with a combination plastic foam and fiber glass insulation. Other features include a 1 hp. motor combination electric ammeter-tachometer, spring balanced cover, and a draining system in the guard bowl. Finished in metallic green, the dimensions of the unit are 39 in. in height, 28 in. width, and 38 in. length. P-39
Plastic Graduates. Clear, glass-like plastic graduates are available in four sizes—4, 8, 16, and 32 ounces—with readings in ounces and metric measure. Needs Corp. P-48
Rubber Flask Support. Available for flask sizes from 100 to 72,000 ml. Said to resist heat and flame, to be nonskid, and to withstand pressure without cracking. Chem-Lab Co. P-43 Bacterial
Spore
Strips.
Two
For f u r t h e r details, see ERS' I N F O R M A T I O N SERVICE f o l l o w i n g this section
test
strips and one control strip make up each test set for determining efficiency
Jhyoic œfuxû rdtMY In LINDBERG Booth #40 at the Pittsburgh Conference
EXPLOSION PROOF
A new economy model box furnace just right for the m a n y special heating jobs required of t h e modern laboratory.
AIR P0WERÎD
STIRRER
• A new, rugged laboratory box furnace with metallic element . . . capable of operating continuously a t 2200° F . • A completely modernized resistance element combustion t u b e furnace. We'll h a v e a good group of t o p Lindberg Laboratory E q u i p m e n t people there to help you with your specific laboratory h e a t application problems. Come see u s ! Laboratory Equipment Division
LINDBERG ENGINEERING COMPANY
For Safe " L A B " Stirring JUST ATTACH TO AIR LINE!
/ /
y y /
y y
2 4 5 5 W . Hubbard St., Chicago 12, Illinois
U W e
Arrow h e a t for industry Circle No. 100 on Readers' Service Card
114
A
·
ANALYTICAL CHEMISTRY
"Type G" 7-1 Ratio 60 to 1200 rpm for heavy viscous Materials. "Type A" 300 to 10,000 rpm for light Materials. High torque Controlled variable speeds Smooth, quiet operation Compact, light. Attaches to standard laboratory stand Stainless steel shaft and propeller Resists most corrosives. Easily cleaned Adjustable chucks available
ENGINEERING
FOR BULLETIN 97.
CO.,
INC.
2 0 0 Central Avenue Hillside, N e w Jersey Circle No. 25 on Readers' Service Card
