Skogstad A, Eduard W, Huser P O
National Institute of Occupational Health, Oslo, Norway.
Am Ind Hyg Assoc J. 1996 Aug;57(8):741-5. doi: 10.1080/15428119691014602.
An exposure chamber for generation of 10 replicate filter samples of asbestos fibers is described. The coefficient of variation of replicate samples from laboratory generated amosite aerosol was less than 2.6% in samples with densities of 15 to 250 fibers/mm2. Thus, generation of replicate filter samples of asbestos fibers was possible on a small scale with good precision. Air ionization by an ion source did not alter the variability of replicate samples at relative humidities of 40% or higher. The exposure chamber is of moderate weight and can also be used in the field for collection of replicate samples from working environments.
本文描述了一种用于生成10个重复的石棉纤维过滤样品的暴露室。在密度为15至250根纤维/平方毫米的样品中，实验室生成的铁石棉气溶胶重复样品的变异系数小于2.6%。因此，能够小规模高精度地生成石棉纤维的重复过滤样品。在相对湿度为40%或更高时，离子源引起的空气电离不会改变重复样品的变异性。该暴露室重量适中，也可用于现场从工作环境中采集重复样品。
