Performance of permeation tubes as standard gas sources.

Details

• Personal Author:
  Burg WR ; Ramaswamy G ; Saltzman BE
• Description:
  Important factors affecting the accuracy of permeation tubes for nitrogen-dioxide (10102440), propane (74986), butene-1, and butane (106978) were studied. Two new methods of sealing the tube ends were developed. Lifetimes of tubes were greatly extended by attaching to one end a glass or stainless steel bottle. Systems for their storage, calibration, and use were improved. Propane tubes required some aging at 30 degrees centigrade before reproducible rates in the 20 to 30 degrees centigrade range could be achieved. Humidity seriously affected the permeation rates of nitrogen-dioxide tubes; even the past history of exposure was important. A convenient method for volumetric in situ calibration in the working flow dilution system was developed for rapid and precise results. Tubes for nitrogen-dioxide were not reliable as precision primary standard gas sources, unless recently calibrated. [Description provided by NIOSH]
• Subjects:
  Environmental Monitoring Hazardous Substances Hydrocarbons Nitrogen Oxides Occupational Health Safety
• Keywords:
  Air-quality-measurement Aliphatic-hydrocarbons Grants-other Impregnation Measurement-methods Methodology NIOSH-Grant NIOSH-Publication Nitrogen-oxides Penetration Toxic-gases

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• ISSN:
  0013-936X
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  Ohio ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  5
• Issue:
  11
• NIOSHTIC Number:
  nn:00071249
• Citation:
  Environ Sci Technol 1971 Nov; 5(11):1121-1128
• Contact Point Address:
  Environmental Health Kettering Laboratory College of Medicine Cincinnati, Ohio 45219
• CAS Registry Number:
  Butane (CAS RN 106-97-8) ; Nitrogen dioxide (CAS RN 10102-44-0) ; Propane (CAS RN 74-98-6)
• Federal Fiscal Year:
  1972
• NORA Priority Area:
  Other Occupational Concerns ; Grants Other
• Performing Organization:
  University of Cincinnati, Cincinnati, Ohio
• Peer Reviewed:
  True
• Start Date:
  19710701
• Source Full Name:
  Environmental Science and Technology
• End Date:
  19770930
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:70e0e5edd03c010cab27d4fa947dd6d0b29f58105f37a29e792f0a1fbff4d48731d67b668f4035e85a5bc0e75386fb662db96f24b1eea6167a4386d0ef826125
• Download URL:
  https://stacks.cdc.gov/view/cdc/184176/cdc_184176_DS1.pdf
• File Type:
  [PDF - 842.61 KB ]