Yeh H C, Newton G J, Barr E B, Carpenter R L, Hobbs C H
Am Ind Hyg Assoc J. 1986 Sep;47(9):540-5. doi: 10.1080/15298668691390197.
Two multi-tiered whole body inhalation exposure chambers with nominal volumes of 1 m3 (H-1000) and 2 m3 (H-2000) were evaluated for their performance in terms of the temporal and spatial distribution of test aerosols within the chamber. Parameters investigated included chamber type, single-chamber-single-aerosol generator versus two-chamber-single-aerosol generator systems, chamber air supply and exhaust systems, particle size, and aerosol diluter type. Results indicated that: 1) particle size has an effect on chamber aerosol concentration distribution, with the larger particle resulting in a higher variation; 2) the single-chamber-single-generator system is more stable than the two-chamber-single-generator system; 3) the H-2000 chamber has a lower aerosol spatial variability than the H-1000 chamber; and 4) the aerosol distribution within the chamber could be improved with the use of a newly designed diluter.
评估了两个标称容积分别为1立方米（H - 1000）和2立方米（H - 2000）的多层全身吸入暴露舱在舱内测试气溶胶的时间和空间分布方面的性能。研究的参数包括舱室类型、单舱单气溶胶发生器与双舱单气溶胶发生器系统、舱室空气供应和排气系统、颗粒大小和气溶胶稀释器类型。结果表明：1）颗粒大小对舱内气溶胶浓度分布有影响，颗粒越大变化越高；2）单舱单发生器系统比双舱单发生器系统更稳定；3）H - 2000舱的气溶胶空间变异性低于H - 1000舱；4）使用新设计的稀释器可改善舱内的气溶胶分布。
