Perform routine facility and study-area opening and closing procedures, which may include unlocking and securing entrances, disarming and setting alarms, turning lights and equipment on or off, preparing materials for the next study day, and ensuring work areas are clean, stocked, and ready for use. Prepare study areas, patch booths, test materials, volatilized and non-volatilized patches, dilutions, and other supplies required for study conduct, and complete all applicable preparation, equipment, booth, cart, and study logs.