16 A ANALYTICAL CHEMISTRY

4 0 - 7 0 3 Industro Gas Analyzer Model Β—for flue gas and other three-component samples. Complete with instructions and one set of solutions. $87 .50

4 0 - 7 0 7 Industro Gas Analyzer Model C—for more complicated mixtures requiring a combustion as­sembly. Complete with instructions and one set of solutions. $ 1 4 0 . 0 0

Compact, fast and trouble-free, the Burrell Industro Gas Analyzer is the modern tool for the industrial gas analyst.

Although of a simplified mechanical design, this time-saving instrument is built for accu­rate control analysis. The trouble-free, leak-proof valve system is simple, sturdy and positive-acting. I t eliminates fragile stop­cocks and sticky valves.

Designed for on-the-job use by the control engineer as well as the laboratory technician, the Industro is available in two models. Model Β is used for mixtures such as flue gases where determination of carbon dioxide, oxygen and carbon monoxide is desired. Model C com­

bines features of Model Β with added facilities for the measurement of combustibles such as hydrogen and methane occuring, for example, in heat-treating atmospheres, natural, pro­ducer, blast furnace or mixed gases.

Simple operation of the Burrell Industro Gas Analyzer gives even the novice a ready means of making an analysis without extended practice.

This self-contained instrument, the Burrell Industro, is O U T S T A N D I N G because it is lab­oratory PERFECTED—and field P R O V E D

For complete information on the Burrell Industro Gas Analyzer write for Bulletin No. 213.

B U R R E L L T E C H N I C A L S U P P L Y C O M P A N Y 1 9 4 2 F IFTH A V E . , P I T T S B U R G H 1 9 , PA.

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