负压救护车医疗舱性能参数计量校准方法解读  

Interpretation of Calibration Methods for Performance Parameters of Medical Cabins in Negative Pressure Ambulances

作　　者：王志栋 崔宏恩 吴枭 高运华[1] WANG Zhidong;CUI Hongen;WU Xiao;GAO Yunhua(National Institute of Metrology,Beijing 100029,China;Jiangsu Institute of Metrology,Nanjing 210023,China)

机构地区：[1]中国计量科学研究院,北京100029 [2]江苏省计量科学研究院,南京210023

出　　处：《计量科学与技术》2025年第1期69-75,共7页Metrology Science and Technology

基　　金：国家重点研发计划项目(2023YFF0614603)。

摘　　要：JJF 1972-2022《负压救护车医疗舱性能参数校准规范》的发布实施,为负压救护车医疗舱性能参数校准工作提供了依据,梳理了负压救护车医疗舱性能参数的计量特性、校准方法和测量过程中使用的标准器,讨论了校准过程中的注意事项。示踪气体法是测量换气次数的权威和推荐方法,比较了风速仪法和示踪气体法测量医疗舱换气次数的优缺点,以两种方法分别测量同一负压救护车医疗舱的换气次数,风速仪法测得换气次数为23.5 h^(-1)、示踪气体法测得换气次数为17.8 h^(-1),探讨了换气次数的不确定度评定方法,两种方法测得换气次数的不确定度分别为0.8 h^(-1)(k=2)和1.0 h^(-1)(k=2)。总结了光度法和计数法进行高效/超高效过滤器检漏的适用场景和注意事项,阐明了气流模式测量方法的注意点。对该校准规范的应用前景进行了总结展望,为负压救护车医疗舱性能参数校准工作的开展提供参考。The implementation of JJF 1972-2022,"Calibration Specification of Performance Parameters of Medical Cabins in Negative Pressure Ambulances",provides a foundational guideline for calibrating the performance parameters of medical cabins in negative pressure ambulances.This paper outlines the metrological characteristics,calibration methods,and standard instruments utilized during the measurement process for these performance parameters.Additionally,it discusses critical considerations during calibration procedures.The tracer gas method is identified as the authoritative and recommended approach for measuring the air change rates within medical cabins.A comparative analysis between the anemoscope(wind speed)method and the tracer gas method was conducted to evaluate their respective advantages and disadvantages in measuring the air change rates of the same negative pressure ambulance medical cabin.The anemoscope method measured an air change rate of 23.5 hl,while the tracer gas method measured 17.8 h^(-1).The paper also explores methods for uncertainty evaluation of the air change rates,finding uncertainties of 0.8 h^(-1)(k=2)and 1.0 h^(-1)(k=2)for the anemoscope and tracer gas methods,respectively.Furthermore,the study summarizes the applicable scenarios and considerations for using photometric and counting methods in leak detection of HEPA/ULPA filters,and elucidates key points in airflow pattern measurement methods.The application prospects of the JF 1972-2022 calibration specification are also discussed,providing valuable references for the calibration work of performance parameters in medical cabins of negative pressure ambulances.

关 键 词：计量学 负压救护车医疗舱 性能参数 校准方法 解读 

分 类 号：TB99[一般工业技术—计量学]