大流量大气颗粒物采样器质量控制技术

Quality Control Technique for High-Volume Atmospheric Particulate Sampler

利用ISA1932喷嘴流量计和2031型采样器,测试了PMS-800大流量大气颗粒物采样器的流量和总采样效率,研究建立了大流量大气颗粒物采样器质量控制方法。结果表明,PMS-800采样器流量计与ISA1932喷嘴流量计的相对偏差小于5%,总采样效率与2031型采样器的相对偏差小于10%,满足全面禁止核试验条约(CTBT)相关技术文件要求。该方法可用于大流量大气颗粒物采样器的质量控制。

Quality control technique was developed for high-volume atmospheric particulate sampler. The flow meter of PMS-800 sampler was calibrated by an ISA1932 nozzle flow meter, and the global collection efficiency of PMS-800 sampler was tested by a type 2031 mobile sampler. The results show that the flowrate relative deviation between ISA1932 nozzle flow meter and PMS-800 sampler flow meter is less than 5%, and the global collection efficiency relative deviation between type 2031 sampler and PMS-800 sampler is less than 10%. The performance of PMS-800 sampler meets the specifications with the request of the Comprehensive Nuclear-Test-Ban Treaty. This method can be applied to quality control for high-volume atmospheric particulate sampler.