ASTM D7201-06(2020)
通过相位对比显微镜(带有透射电子显微镜选项)在工作场所取样和计数机载纤维(包括石棉纤维)的标准实践
Standard Practice for Sampling and Counting Airborne Fibers, Including Asbestos Fibers, in the Workplace, by Phase Contrast Microscopy (with an Option of Transmission Electron Microscopy)