Testing oxygen

In addition to the standard polarization curve conducted on the intended oxidant, typically air, oxygen polarization curves are also commonly conducted. The oxygen polarization curve provides a measiue of the activation 

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Action of heat The result varies with the metal. The nitrates of sodium and potassium evolve oxygen (test with glowing splint) and leave solid nitrites (brown fumes with dilute acid) ammonium nitrate yields dinitrogen oxide and... 

T. K. Minton, Protocol for Atomic-Oxygen Testing of Materials in Ground-Based Facilities, NASA Contraictor Report 95-112589, JPL Publication 95-17 (NASA, Pasadena, CA, 1995). 

Figure 1. Comparison of the oxygen reduction activity of various binary and ternary catalysts with prrre Pt, nsing 30-psig oxygen test conditions to enhance the differentiation.

A carbon dioxide sensor for monitoring levels in a closed exhalation anesthesia system was developed by Jordan (23). 7,10-dioxa-3,4-diaza-l,5,12,16-hexadecatetrol was prepared by mixing monoethanolamine, often used as a CO2 scrubber, with ethylene gylcol diglycidyl ether in a 2 1 ratio and was used as a coating. The respone was 391 Hz for 10% CO2, exposure time less than 30 sec, and complete recovery in less than 60 sec. No interferences were reported from nitrous oxide, halothane, or oxygen tested at normal anesthesia concentrations. 

Dissolved-oxygen tests are part of routine water quality monitoring. 

The data presented in Table I were compiled from tests conducted by several companies using or concerned with liquid oxygen. Test apparatus and methods have differed slightly, as have methods of reporting the results. In Table I, M-B refers to the Baltimore division of the Martin Company, M-D refers to the Denver division. 

For liquid oxygen tests we used an aluminum Stillwell, mounted in the same manner. 

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