Transcription: The air sampling test was designed to measure levels of contaminants found in the air in the shuttle's cargo bay area. The samples were taken during three different phases of the mission. The first samples were taken while the orbiter was on the ground at Kennedy Center and examined for evidence of residue from hydraulic fluids and lubricants. The second phase of testing was completed during the orbiter's ascent where the scientists main concern centered on hydrochloric acid fumes from the solid rocket booster The final testing took place during the shuttle's descent toward Earth. Through a gr ...