NASA NTRS · 19740019747
Specific wavelength colorimeter
Abstract
A self contained, specific wavelength, single beam colorimeter is described for direct spectrophotometric measurement of the concentration of a given solute in a test sample. An electrical circuit employing a photoconductive cell converts the optical output into a linear, directly readable meter output. The colorimeter is simple to operate and is adapted for use in zero gravity conditions. In a specific application, the colorimeter is designed to analyze the concentration of iodine in potable water carried aboard a space vehicle such as the 4B stage of Skylab.
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Brawner, C. C., Mcdavid, L. S., Walsh, J. M.. 1974-06-18. Specific wavelength colorimeter. https://ntrs.nasa.gov/citations/19740019747
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