Hill R H, Fraser D A
Am Ind Hyg Assoc J. 1980 Oct;41(10):721-9. doi: 10.1080/15298668091425563.
Detector tubes for toluene were cut to produce a nominal 0.5 cm orifice above the indicator material, and exposed to known vapor concentrations. The time needed to reach a pre-determined stain length by simple diffusion was measured. Calibration charts were prepared for time versus concentration for a 1 mm stain, as well as for various stain lengths. Tests were performed to determine the effect of increasing the orifice length and of diffusion through the glass wool plug. Each of these parameters resulted in less reliable concentration measurements than tubes of relatively shorter orifice length having no glass wool plug. Diffusion theory was used to develop theoretical calibration charts for comparison with experimental results, with the former underestimating necessary for appearance of the experimentally observed stains. The use of detector tubes having an orifice length of 0.5 cm as passive dosimeters is shown to be highly feasible based on experimental results.
将用于检测甲苯的检测管切割，使其在指示材料上方形成一个标称尺寸为0.5厘米的孔口，并将其暴露于已知的蒸汽浓度环境中。测量通过简单扩散达到预定染色长度所需的时间。针对1毫米染色长度以及各种不同染色长度，制备了时间与浓度的校准图表。进行了测试，以确定增加孔口长度以及通过玻璃棉塞扩散的影响。与孔口长度相对较短且没有玻璃棉塞的检测管相比，这些参数中的每一个都会导致浓度测量的可靠性降低。利用扩散理论绘制理论校准图表，以便与实验结果进行比较，结果显示前者低估了实验观察到的污渍出现所需的时间。基于实验结果表明，使用孔口长度为0.5厘米的检测管作为被动剂量计是高度可行的。
