aloe
NEW CAHN
APPROACH TO MEASUREMENT OF MASS ELECTROBALANCE
WEIGHS SMALL SAMPLES EASIER, FASTER, ACCURATELY Radical advance in micro-weighing instrumentation. Balance is so rugged . . . go immune to its environment . . . you can forget about vibration, temperature, air currents, leveling. I t ' s portable . . . weighs less than 12 pounds . . . so it can be taken to desk, bench, or wherever needed. The controls are simple, easily understood . . . read directly in micrograms. Anyone in your laboratory can be trusted to use it. Complete weighings average less than a minute. Range of sample weight 0-5, 0-10, 0-20, 0-50 mg. For additional information, request Bulletin A-39. N o . 7270 Model 10—Complete with 3 batteries, 2 stirrups, 10 pans, tweezers, one calibrating weight for each range, and instruction manual. Each $615.00. 5655 KINGSBURY
aloe scientific DIVISION
A. S. A L O E
COMPANY
ST. LOUIS 1 2, MO. 14 DIVISIONS COAST-TO-COAST
Far further information, circle number 86 A-1 on Readers' Service Card, page 83 A
SAFETY /Îot/ycLc FOR P R E C I S I O N PLUS
OVENS
12 MODELS for OPERATION 35° C to 260° C Temperature Differential .5°C Special sizes to order FRONT V I E W
TABLE MODELS-FLOOR MODELS
WHY TAKE CHANCES OF THIS HAPPENING
BACK V I E W
OVENS are often required to d r y or condition materials which have a high content of explosive vapors or a possibility of chemical reaction going out of control inside the oven. A comprehensive report is available which discusses the safety hazards presented b y typical laboratory ovens and the features incorporated to safeguard against fires and explosions and to shield and protect personnel using them, should an explosion or fire occur.
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Special Insulated Back is immediately released in the event o f explosion or sudden pressure rise inside.
FEATURES •
Factory M u t u a l A p p r o v e d explosion proof latches, releases back on rise o f internal pressure.
•
Heating elements limited t o surf a c e t e m p e r a t u r e o f 1 5 0 ° F. above t o p o p e r a t i n g t e m p e r a t u r e .
•
4 " exhaust p o r t f o r v e n t i l a t i n g vapors a n d fumes, w i t h adjustable damper t o control the a m o u n t of heated a i r that is v e n t e d .
•
A l l electrical controls a r e mounted outside o f the Oven Chamber.
I N C . , 5063 Cottman Ave., Phila. 35, Pa.
For further information, circle number 86 A-2 on Readers' Service Card, page 83 A
86A
ANALYTICAL CHEMISTRY
