Contrails
The goal of the Contrails project is to help preserve and disseminate the technical record of 20th century aerospace research, highlighting in particular the research endeavors of the Illinois Tech community.

Functional Verification of the Apollo Urine Transport System

Report Number: AMRL TR 67-166
Author(s): Berhard J. Katchamn; James P. F. Murphy
Corporate Author: Miami Valley Hospital
Laboratory: Aerospace Medical Research Laboratories
Date of Publication: 1969-02
Pages: 40
Contract: AF 33(657)11716
Project: 7164
Task: 716405
AD Number: AD0687148

Abstract:
A simulated aerospace study was conducted to assess the biochemical effects of space flight by determining the volume of urine output of each crewman. The Apollo urine transport system (UTS), using a radioisotope, tritium, dilution technique, was tested by four human male subjects. The Apollo UTS met minimum requirements for 14 days even when a single unit was used by four individuals. The best individual performance by a subject gave a ratio of 101.4 plus or minus 4.6%. The overall value for volume measurement from the four subjects was 100.6 plus or minus 4.6%. Any void volume may be calculated by this radioisotope method with the UTS system plus or minus 10% of its volume at the 95% confidence level. One experimental error was the incomplete mixing of the radiosotope. The practicability of this procedure in actual space missions still has to be determined.

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