Penetration of Sodium Chloride Aerosol Through Respirator Filters

Details

• Personal Author:
  Brenenborg FJ ; Ferber, Benjamin I. ; Rhode A
• Description:
  A method has been previously described for using a sodium chloride (nacl) aerosol to measure penetration through respirator filters. The detector used at that time was not sensitive enough to determine the penetration of high-efficiency filters designed for protection against highly toxic particulates and radio-nuclides. In the present method, an ultrasonic nebulizer is still used to produce a nacl mist. The nacl concentration has been reduced to 10 ug/liter, and the particle size has been decreased to 0.53 Um mass median diameter. Respirator filters were exposed to this aerosol at airflows of 16 and 42.5 Liter/min. The flame photometric detector in this study could determine filter penetration in the range of 0.0005 to 51.6 percent. This is suitable for measuring the penetration of high-efficiency filters. [Description provided by NIOSH]
• Subjects:
  Occupational Health Safety
• Series:
  Mining Publications
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  Indiana ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• NIOSHTIC Number:
  nn:10010760
• Citation:
  Am Ind Hygiene Assoc J 1972 Dec; :971-996
• Federal Fiscal Year:
  1973
• Peer Reviewed:
  False
• Source Full Name:
  Am. Ind. Hygiene Assoc. J., December 1972, PP. 971-996
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:8ca5e73f6a59552a5b2f386b42290a077027dba9d00b710b7ea9c3e2a1809573377ff2b1c862d433c7974092b0827d78cf1ff3e219569d61ac4482c128eb71a8
• Download URL:
  https://stacks.cdc.gov/view/cdc/220090/cdc_220090_DS1.pdf
• File Type:
  [PDF - 627.25 KB ]