NEW PRODUCTS ual operation, and six modes of readout. Radiation Counter Laboratories, Inc. P-24 Amplifier Rejection Filter
rosive agents; come in one, two, and six liter sizes. Stopper and pouring spout are made of Teflon and fastened by a stainless steel screw-lock arrange ment. Chemplast, Inc. P-27
Plug-in units for company's Models Ε and SE titrators are said to sharply improve signal to noise ratio and pro duce effective suppression of 60-cycle interference. The new unit is an inte gral part of the titrators now being sold. E. H. Sargent & Co. P-25 W i d e Range Vacuum G a g e
Instrument measures vacuum from 0.001 micron up to 200 microns Hg in a continuous reading. Operates on 115 volts, 60 cycles, and is instantly selfstarting at any pressure from 760 mm. to 0.001 micron. Controller has on-off switching action, and is equipped with a transistorized d.c. amplifier for en ergizing a relay; a specific value can be preset on the controller. Central Scientific Co. P-26
V a c u u m G a g e Sensing Tubes
Two new items are designed for use with the LKB Autovac Pirani vacuum gage. One, made of Pyrex glass, is for direct sealing to glass systems; meas ures 5 inches long by 10 mm. o.d.; can withstand bake-out temperatures to 400° C. when evacuated. The other, of stainless steel, is for installation in a metal system by a compression con nector; measures 51/2 inches long by 9.6 mm. o.d. Consolidated Vacuum Corp. P-28 Bench O v e n
Forced-air type has temperature range to 500° F., temperature uni formity within ± 2 ° F. Working chamber measures 4 cu. ft., has perfo rated sliding stainless steel shelves ad justable every 3 inches in height. Labline, Inc. P-29 Silica Crucibles a n d Tubes
Teflon Bottles
Bottles molded from Teflon are de signed for storage and transport of cor
Teflon Bottles
New line of high purity silica items features low cost in equipment for test ing and handling metals. Laboratory Equipment Corp. P-30
D E L M A R Announces Γ
CENCO® HYVAC
A NEW
' GAS BALLAST PUMPS , V «κ m. I I i t
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For vacuum applications plant and laboratory. Kliminates use of oil separators, centrifuges, refrigerated traps. Wide range of capacities.
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For best possible results use Cenco p u m p o i l . Write today for Bulletin 9C No. 91506-1 rated displacement, 70.0 liters per m i n . . . .$284.25
cenco ®
CENTRAL SCIENTIFIC C O . A Subsidiary of Cenco Instruments Corporation 1 7 0 8 I r v i n g Park Road · Chicago 13, Illinois Branches a n d Warehouses—Mountainside, N. 1. Boston · Birmingham · Santa Clara · Los Angeles · Tulsa Houston · Toronto · Montreal · Vancouver · Ottawa
MOISTURE SEPARATOR This is the latest, improved apparatus that determines the amount of moisture and fats in meats and biological materials. It determines this accurately and quickly and separates completely the moisture from the fat. In this issue of A n a l y t i c a l Chemistry y o u w i l l find an article b y Dr. H u g o Wistreich which explains how this new apparatus does the work so thoroughly, q u i c k l y , and accurately. A brochure describing in detail this new apparatus w i l l be sent those addressing D E L M A R SCIENTIFIC
LABORATORIES
4 7 0 1 West G r a n d A v e n u e , Chicago 3 9 , Illinois Circle No. 35 on Readers' Service Card Circle No. 107 on Readers' Service Card
82 A
ANALYTICAL CHEMISTRY
Circle No. 131 on Readers' Service Card -
