Planetary quarantine program Quarterly progress report, period ending 30 Jun. 1971
A NASA quarterly progress report from the Planetary Quarantine Program, issued in 1971 for agency engineers and contract scientists tracking spacecraft sterilization and contamination research. The plates are line graphs on ruled or logarithmic axes: families of smooth decay curves labelled by percentage, temperature in degrees Celsius, and particle size class, drawn in plain black rule with typewriter-style annotation.
