Mickelsen R L, Hall R C
Department of Health and Human Services, Centers for Disease Control, Morgantown, WV 26505-2888.
Am Ind Hyg Assoc J. 1987 Nov;48(11):941-7. doi: 10.1080/15298668791385859.
Specimens of similar nominal thickness from commercially available nitrile and neoprene gloves were each tested for breakthrough time against three chemicals. The null hypothesis was that the breakthrough times for the glove specimens of the same generic type but produced by different manufacturers would be the same. Breakthrough time data for each material/chemical combination were analyzed using an analysis of covariance to adjust for differences in the measured specimen thickness while testing for product differences. A significant difference in chemical breakthrough times was found among generically similar products produced by different manufacturers. The largest difference between the mean breakthrough time of two generically equivalent products, 30 vs. 300 min, was obtained for perchloroethylene through nitrile products. In conclusion, breakthrough time data for use in selection of chemical protective clothing or in prediction modeling for chemical protective clothing should be manufacturer and product specific.
对市售丁腈手套和氯丁橡胶手套中具有相似标称厚度的样本,分别针对三种化学品测试其穿透时间。原假设为同一通用类型但由不同制造商生产的手套样本的穿透时间相同。使用协方差分析对每种材料/化学品组合的穿透时间数据进行分析,以在测试产品差异时调整所测样本厚度的差异。结果发现,不同制造商生产的通用类型相似的产品在化学品穿透时间上存在显著差异。两种通用等效产品的平均穿透时间差异最大,通过丁腈产品测试全氯乙烯时,差异为30分钟对300分钟。总之,用于选择化学防护服或化学防护服预测建模的穿透时间数据应针对制造商和产品。