吸收法测定纺织品抗菌性能的不确定度评定
The Uncertainty Evaluation of Absorption Method in Antibacterial Activity of Textile

目的：建立纺织品抗菌性试验的不确定度分析方法。方法：以吸收法测定纺织品对金黄色葡萄球菌的抑菌值为例，分析不确定度来源；采用A类或B类方法评定各分量的不确定度；根据测量模型和不确定度传播律，求灵敏系数、相关系数，计算合成不确定度，确定扩展不确定度。结果：当抑菌值为3.13时，吸收法测定的扩展不确定度为0.73。结论：本文可为抗菌性吸收法的测量不确定度评估提供参考。
Objective: To establish an uncertainty analysis method for the determination of antibacterial activity of textile products. Methods: Taking the absorption method against Staphylococcus aureus as an example, the uncertainty source was analyzed, the uncertainty factors were evaluated by Type A or Type B, the sensitivity coefficient and the correlation coefficient can be gotten according to the measurement model and the uncertainty propagation law, the combined standard uncertainty was calculated, and the expanded uncertainty was reported. Results: The expanded uncertainty is 0.73 when the antibacterial activity value is 3.13. Conclusion: This paper provides reference for the uncertainty evaluation of the determination of antibacterial activity value.