1. The duty time is from 9:00 of the day to 9:00 of the next day. There is no shift on weekends. In principle, students are not allowed to leave school during the period of duty and shift on weekends.
2. The personnel on duty shall check the college once on the day of duty, make registration in the duty record book, and nail and submit the duty situation. The duty situation shall be communicated with the leader in charge of the shift in time, and the shift leader shall inspect the laboratory at least once a month during the shift.