噪声测量仪器性能实验室间比对评价

发布时间：2018-05-30 09:38

本文选题：实验室间比对 + 噪声　；参考：《中国职业医学》2015年03期

【摘要】：目的通过分析职业卫生技术服务机构噪声测量仪器实验室间比对结果,评价噪声测量仪器的性能。方法 2013—2014年采用仪器基本性能、可调式基准噪声测量和模拟工作场所噪声定点测量的比对方法,分别在58和71家广东省职业卫生技术服务机构中开展噪声测量仪器的实验室间比对,采用稳健统计技术分析和评价比对结果。结果所有参比噪声测量仪器和声级校准器均经检定或校准合格,除2013年有1台噪声测量仪器未按时检定外,其余仪器均在检定或校准有效期内;2013和2014年参比实验室噪声测量仪器的声级校准器配置率分别为69.0%(40/58)和90.1%(64/71),2014年的较高(P0.01)。可调式基准噪声测量结果显示,2013、2014年噪声测量仪器准确度比对合格率分别为76.8%(43/56)和74.6%(53/71),仪器级线性比对合格率分别为94.6%(53/56)和93.0%(66/71);2013、2014年仪器准确度比对合格率分别低于相应年度的仪器级线性比对合格率(P0.01)。模拟工作场所噪声定点测量结果显示,2013、2014年实验室间z比分数的满意结果率分别为82.8%(48/58)和95.8%(68/71),2014年的较高(P0.05);2013、2014年实验室内z比分数的满意结果率分别为92.9%(54/58)和95.8%(68/71),两者差异无统计学意义(P0.05)。结论广东省职业卫生技术服务机构噪声测量仪器存在声级校准配置率较低,部分仪器准确性较差,实验室间存在一定程度的偏倚等问题,有待改善。
[Abstract]:Objective to evaluate the performance of noise measurement instruments by analyzing the results of laboratory comparison of noise measurement instruments in occupational health service institutions. Methods from 2013 to 2014, the basic performance of the instrument, the measurement of adjustable reference noise and the method of simulating the fixed point measurement of workplace noise were compared. The laboratory comparison of noise measurement instruments was carried out in 58 and 71 occupational health technical service institutions in Guangdong Province, and the results were analyzed and evaluated by robust statistical techniques. Results all reference noise measuring instruments and sound level calibrators were certified or calibrated, except for one noise measuring instrument that was not calibrated on time in 2013. The sound level calibration rates of the other instruments in 2013 and 2014 were 69.0 / 58 and 90.1 / 64 / 71 respectively, and the higher ones in 2014 were higher than that in 2014. The results of adjustable reference noise measurement show that the accuracy comparison of noise measurement instruments in 2013 and 2014 is 76.8 / 56 / 56) and 74.6 / 53 / 71g respectively, and the calibration rate is 94.66 / 53 / 56) and 93.0 / 66 / 71 / 2013 respectively. The qualification rate of accuracy comparison of instruments in 2014 is lower than that of corresponding years, respectively. The calibration rate is P0.01g. The results of simulated workplace noise fixed point measurement showed that the satisfactory result rates of z / v scores between laboratories in 2014 were 82.8% / 58) and 95.880 / 71% respectively. The satisfactory results rates of z / v scores in 2014 were 92.954% / 58) and 95.880% / 71U respectively. There was no significant difference between the two groups (P 0.05). Conclusion the noise measurement instruments of occupational health service institutions in Guangdong province have some problems such as low calibration rate of sound level, poor accuracy of some instruments and bias between laboratories, etc., which need to be improved.
【作者单位】：广东省职业病防治院广东省职业病防治重点实验室;北京市劳动保护科学研究所职业安全健康重点实验室;
【基金】：广东省职业病防治重点实验室(2012A061400007) 北京市科学技术研究院重大专项(PXM2014-178304-000002-00130228)
【分类号】：R134;TB52

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