Standard
[NEW]
2026
Standard Test Method for Sampling and Counting Airborne Fibers, Including Asbestos Fibers, in the Workplace, by Phase Contrast Microscopy (with an Option of Transmission Electron Microscopy)
1.1 This test method 2 describes the determination of the concentration of fibers, expressed as the number of such fibers (f) per cubic centimeter (millilitre) of air, using phase contrast ...