分流法测试PM2.5/PM10颗粒物切割器的切割性能
The Cutting Characteristics of PM2.5/PM10 Particulate Impactors Were Evaluated Utilizing the Divide Flow Method
摘要: 本文采用分流法测试PM2.5和PM10切割器，结果显示PM2.5切割器的切割性能：Da50 = 2.54，σ16 = 1.16，σ84 = 1.26；PM10切割器的切割性能：Da50 = 10.20，σ16 = 1.59，σ84 = 1.46。均满足相关标准的技术要求。用蒙特卡洛法评定了PM2.5切割器50%切割粒径(Da50)的测量不确定度：U = 0.12 μm，k = 2。通过实验室间和实验室内比对，测试结果验证具有准确性和可靠性。该研究能够为颗粒物的监测和校准提供可靠的技术保障。
Abstract: The divide flow method was employed to evaluate the cutting characteristics of PM2.5 and PM10 particulate impactors. The results showed that the cutting performance of the PM2.5 cutter was characterized by Da50 = 2.54 μm, σ16 = 1.16, σ84 = 1.26; for the PM10 impactors: Da50 = 10.20 μm, σ16 = 1.59, σ84 = 1.46. All values comply with the technical requirements specified in the relevant standards. The measurement uncertainty of the 50% cut point diameter (Da50) for the PM2.5 impactors was evaluated using the Monte Carlo Method, yielding U = 0.12 μm with a coverage factor k = 2. The accuracy and reliability of the test results were further verified through inter-laboratory and intra-laboratory comparisons. These findings provide a robust technical foundation for the monitoring and calibration of particulate matter.
文章引用：花秀兵, 周瑾艳, 陈玲, 王世超, 苏茗谨. 分流法测试PM2.5/PM10颗粒物切割器的切割性能[J]. 机械工程与技术, 2025, 14(6): 728-737. https://doi.org/10.12677/met.2025.146076

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