生物安全柜人员、产品和交叉污染保护(碘化钾法)测量不确定度评定

Evaluation of Measurement Uncertainty for Biosafety Cabinet Personnel,Product, and Cross-Contamination Protection(Potassium Iodide Method)

根据JJF 1815-2020《Ⅱ级生物安全柜校准规范》附录A的测量方法,分析各标准不确定度分量的来源,成功建立了生物安全柜人员、产品和交叉污染保护(碘化钾法)测量不确定度评定方法,并对其测量结果进行不确定度评定,在包含因子k均为2的情况下,生物安全柜人员保护的扩展不确定度为34%,产品保护的扩展不确定度为33%,交叉污染保护的扩展不确定度为32%,可用于生物安全柜人员、产品和交叉污染保护参数的量值溯源和测量不确定度评定方法的标准化。

According to the measurement method in Appendix A of JJF 1815-2020 " Calibration Specification for ClassⅡ Biosafety Cabinets ", the source of uncertainty components of each standard was analyzed, and the measurement uncertainty evaluation method for biosafety cabinet personnel, product, and cross-contamination protection(potassium iodide method) has been successfully established, and the uncertainty of the measurement results was evaluated. The extended uncertainties of personnel protection, product protection, and cross-contamination protection of biosafety cabinets were 34%, 33%, and 32%, respectively, with the inclusion factor k all being 2, which suggests that they can be used for the standardization of methods for traceability and measurement uncertainty assessment of related parameters.