• ASTM F50-12(2015)
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ASTM F50-12(2015)

  • Standard Practice for Continuous Sizing and Counting of Airborne Particles in Dust-Controlled Areas and Clean Rooms Using Instruments Capable of Detecting Single Sub-Micrometre and Larger Particles
  • standard by ASTM International, 10/01/2015
  • Publisher: ASTM

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1.1 This practice covers the determination of the particle concentration, by number, and the size distribution of airborne particles in dust-controlled areas and clean rooms, for particles in the size range of approximately 0.01 to 5.0 μm. Particle concentrations not exceeding 3.5 × 106 particles/m 3 (100 000/ft³) are covered for all particles equal to and larger than the minimum size measured.

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