Trout D, Breysse P N, Hall T, Corn M, Risby T
Am Ind Hyg Assoc J. 1986 Aug;47(8):491-6. doi: 10.1080/15298668691390098.
The protection provided by carbon-containing organic vapor respirator cartridges depends in part on the packing density of the carbon in the cartridges and its degree of activation. Large variations in these parameters could have significant effects on the service-life of respirator cartridges. Variability among commercially available organic vapor respirator cartridges was examined with regard to the following characteristics: the particle size distribution, amount of carbon and packing density of the carbon in the cartridges and the degree of activation of the carbon. The degree of activation was determined by measuring the maximum adsorption space and the structural constant of the carbon. These two parameters--Wo (cm3/g) and k (cal/M)-2--are constants in the Dubinin/Radushkevich (D/R) model from which physical absorption onto microporous adsorbents, such as activated carbon, are described. Respirator cartridges from three different suppliers were examined. Significant variability (11-40%) in the amount and the degree of activation of the carbon occurred between cartridges of different manufacturers, as well as among cartridges of an individual manufacturer.
含碳有机蒸气过滤盒所提供的防护部分取决于过滤盒中碳的填充密度及其活化程度。这些参数的大幅变化可能会对过滤盒的使用寿命产生重大影响。针对市售有机蒸气过滤盒的以下特性进行了变异性研究：颗粒大小分布、碳含量、碳在过滤盒中的填充密度以及碳的活化程度。活化程度通过测量碳的最大吸附空间和结构常数来确定。这两个参数——Wo（立方厘米/克）和k（千卡/摩尔）-2——是杜宾宁/拉杜什凯维奇（D/R）模型中的常数，该模型描述了在微孔吸附剂（如活性炭）上的物理吸附。对来自三个不同供应商的过滤盒进行了检测。不同制造商的过滤盒之间以及单个制造商的过滤盒之间，在碳含量和活化程度方面存在显著变异性（11 - 40%）。
