ASTM D7200-12
用相位比对显微镜取样和计数车间内的空气纤维 (包含石棉纤维) 的标准实施规程

Standard Practice for Sampling and Counting Airborne Fibers, Including Asbestos Fibers, in Mines and Quarries, by Phase Contrast Microscopy and Transmission Electron Microscopy



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