Determination of Particle Size Distribution for Aerosol Generated by Lechler’s Ultrasonic Atomizer

Details

• Personal Author:
  Prabhu P
• Description:
  The particle size distribution of a vacuum pump oil aerosol (Inland-99) generated by an ultrasonic atomizer US 1 (Type 710.070.16.50, working frequency 100 kHz), manufactured by Lechler was measured in this study using a gravitational collection technique. Particles were collected on microscope slides that were treated with NYEBAR type Q solvent and analyzed by microscopy. The spread factor was determined to find the relationship between the flattened diameter of sampled particles and the true spherical diameter of the particles generated by the atomizer. The mean spread factor for Inland-99 vacuum pump oil drops collected on NYEBAR type Q solvent treated microscope slides was 1.31 with a standard deviation of 0.027. The particle size distribution was approximately lognormal. The mean value of the count median diameter for three repetitions was 22.88 µm with a standard deviation of 5.86 um. Similarly, the mean of the geometric standard deviation was 166 with a standard deviation of 0.15. [Description provided by NIOSH]
• Subjects:
  Aerosols Occupational Health Particulate Matter Safety
• Keywords:
  Aerosol Particles Dispersion Microscopy Particle Aerodynamics Particle Size
• Publisher:
  University of North Carolina at Chapel Hill
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Thesis
• Place as Subject:
  North Carolina ; OSHA Region 4
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-32
• NIOSHTIC Number:
  nn:20056158
• Citation:
  Chapel Hill, NC: University of North Carolina at Chapel Hill, 2003 Jan; :1-32
• Federal Fiscal Year:
  2003
• NORA Priority Area:
  Research Tools and Approaches: Exposure Assessment Methods
• Performing Organization:
  University of North Carolina Chapel Hill
• Peer Reviewed:
  True
• Start Date:
  20010930
• Source Full Name:
  Determination of particle size distribution for aerosol generated by Lechler's ultrasonic atomizer
• End Date:
  20050929
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:6a5ce3f9e371a424a2308b4014389144cc6de67e82e60a2e215f5b88a3c4bfbf6d1928b56350a886dd9524bb043c82000df96861eb8f3ca2798a7ca05d2fdfe6
• Download URL:
  https://stacks.cdc.gov/view/cdc/213816/cdc_213816_DS1.pdf
• File Type:
  [PDF - 8.31 MB ]