介绍了三种类型的工业除尘器（脉冲筒式除尘器、脉冲布袋除尘器和静电除尘器）的穿透率随加载时间和粒度的变化。使用光学粒子计数器测量粒径在0.442μm和8.50μm之间的部分穿透。在2至5分钟的时间间隔内读取读数，以平均因脉冲产生的任何下游颗粒浓度波动。研究发现，药筒单元的分数渗透通常比布袋单元的分数渗透低一个数量级。电除尘器的下游质量浓度明显高于硝化型装置。 集热器质量系数“优值”是集热器性能参数，它考虑了给定装置的渗透和压降。对于弹壳单元，其价值比布袋单元高出约五倍。开发了一种现场试验方法，使用实时光散射仪MIE RAM-1和重量分析来确定上游和下游总质量浓度。通过在MIE RAM-1上游放置Dor-Oliver旋风分离器，确定可吸入下游质量浓度。现场测试数据表明，由于运行参数、粉尘类型和维护的不同，现场除尘器的性能存在很大差异。 开发了一个计算机模型，该模型使用除尘器获得的分数过滤效率来预测工业环境工作区的可吸入粉尘浓度。对循环空气系统进行了参数研究。从这些参数研究中发现，当使用高质量的除尘器时，罩捕捉效率是系统中最重要的因素。发动机罩捕集效率的10%变化可能会使呼吸性粉尘浓度变化高达50%。

The fractional penetrations of three types of industrial dust collectors (pulsed cartridge units, pulsed fabric bag units and electrostatic precipitators) as functions of loading time and particle size are presented. The fractional penetrations were measured with an optical particle counter for particle sizes between 0.442 um and 8.50 urn. The readings were taken over time intervals of 2 to 5 minutes to average any downstream particle concentration fluctuations due to pulsing. It was found that the fractional penetrations for the cartridge units were generally an order of magnitude below those of the fabric bag units. The electrostatic precipitators were seen to have considerably higher downstream mass concentrations than the nitration type units. A collector quality factor, "the figure of merit", is a collector performance parameter that takes into account both the penetration and pressure drop of a given unit. For the cartridge units the figure of merit was found to be approximately five times higher than for the fabric bag units. A field test method was developed that uses a real time light scattering instrument, the MIE RAM-1, and gravimetric analysis to determine upstream and downstream total mass concentrations. The respirable downstream mass concentration was determined by placing a Dor-Oliver cyclone upstream of the MIE RAM-1. Field test data reveal that there is a great deal of variation in the performance of dust collectors in the field due to differences in operating parameters, dust types and maintenance. A computer model was developed which uses the fractional filter efficiencies obtained for the dust collectors to predict the respirable dust concentration in the working zone of an industrial environment. Parametric studies were performed on the recirculated air system. From these parametric studies, it was found that the hood capture efficiency is the most important factor in the system when a high quality dust collector is used. A 10% change in the hood capture efficiency may change the respirable dust concentration by as much as 50%.