VOLUME
2 2 , N O . 2, F E B R U A R Y
1950
43 A
GLASS ABSORPTION CELLS OF
FINE
MADE BY
QUALITY
KLETT
Complete Electrophoresis Apparatus SCIENTIFIC
APPARATUS
Klett-Summerson Photoelectric Colorimeters Colorimeters - Nephelometers - Fluorimeters Bio-Colorimeters - Comparators - Glass Stand ards - Glass Cells - Klett Reagents
KLETT
MANUFACTURING CO. 177 E A S T 8 7 T H STREET NEW Y O R K Ν . Υ.
A new kind of pump for accuracy in p u m p i n g and controlling small volumes of air, gases and liquids. Operates on an entirely new electro-mechanical principle. • Will not vapor lock. • No sparking . . . Handles inflammables. • • • •
• Maximum static head—12 feet. • Requires no lubrication . . . No maintenance.
No valves . . . No packing . . . No frictional moving parts. Not damaged by small particles in liquid suspension. Flow rates—2 drops to 10 gallons per hour. Accurate constant volume. (Variable volume accurately controllable by simple
rheostat.)
• Can be remotely controlled for handling dangerous or radioactive materials. • Power source—continuous duty magnetic coil. (110-120 Volts
60 Cycle AC 20 Watts)
SPECIFIC APPLICATIONS Metering Pump Aerator Carboy Dispenser Transfer Pump Aspirator Low Pressure Air Source Air Sampling Recirculating Pump
When ordering, specify stainless steel or aluminum type pump.
8460 Twin-Turi P u m p , Stain- φ , ο π η less Steel or Aluminum... . E a c h « p l o . O U
STANDARD SCIENTIFIC SUPPLY CORP. 34 W e s t 4th Street
New York 1 2 , Ν . Y.
