Safety performance testing and evaluation of class Ⅱ biological safety cabinets in a hospital
Objective To understand the safety evaluation and operation status of class Ⅱ biological safety cabinets in a hospital.Methods Through the instrument detection method,according to the related specifications requirements,the safety-related performance of 18 class Ⅱ biosafety cabinets in a hospital was tested.Results The average qualified rate of safety performance indexes of 18 class Ⅱ biological safety cabinets in this hospital was 44.44％.The integrity of the air inlet high efficiency particulate air filter of the biological safety cabinet was all qualified.The qualified rates of airflow mode,downflow air and inflow air were 77.78％,83.33％and 77.78％,respectively.The qualified rate of noise was 83.33％.The qualified rates of cleanliness and UV lamp irradiation intensity were 100.00％.Conclusion The qualified rate of some key indicators of class Ⅱ biological safety cabinets in use in this hospital is high,but the overall qualified rate of safety testing is low.It is necessary to strengthen special supervision,monitoring and maintenance management.
class Ⅱ biological safety cabinetssafety performancetesting
NETL
NSTL
万方数据
