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ASTM 7201

Category Asbestos Lab Services
Test ASTM 7201

Sampling and Counting Airborne Fibers Including Asbestos Fibers, in the Workplace, by Phase Contrast Microscopy and Transmission Electron Microscopy (with an Option of Transmission electron microscopy)


  • This ASTM standard is based on other PCM methods including the NIOSH 7400, OSHA ID-160 and ISO 8672.
  • For the determination of the concentration of fibers/ml of air by PCM and optionally by TEM
  • PCM results that exceed a limit value can be modified by a subsequent TEM analysis that determines the percentage of asbestos fibers to non-asbestos fibers present.

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