Gas generation systems for the evaluation of gas detecting devices.

Details

• Personal Author:
  Beilby AL ; Dorko WD ; Hall LC ; Hughes EE ; Scheide EP ; Taylor JK
• Description:
  This report summarizes work concerned with the development of gas generation systems for use in verifying the performance of gas detection devices or for the calibration of gas analysis instrumentation. The systems were designed to provide mixtures of a number of different gases and vapors in air at concentrations representing fixed proportions of the threshold limit value. Furthermore, they furnish a sufficient volume of gas to allow continuous testing of devices while maintaining a predetermined concentration level. The substances for which gas generation systems were developed are: carbon dioxide, carbon monoxide, ozone, sulfur dioxide, hydrogen sulfide, nitrogen dioxide, benzene, carbon tetrachloride, trichloroethylene, tetrachloroethylene, ammonia, and chlorine. The systems are of 4 basic types: direct delivery from cylinders of known concentration, dynamic blending of high concentrations with air, permeation tubes, and generation of the substance directly in an air stream. Monitoring systems are suggested to allow confirmation of the quantities generated. Details of construction are given.
• Subjects:
  Accidents, Occupational Blood Environment Hazardous Substances Heat Stress Disorders Hematologic Tests Hot Temperature Nitrogen Oxides Occupational Health Respiratory System Respiratory Tract Diseases Safety

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• Keywords:
  Apparatus Chlorinated-ethylenes Instruments Methodology TLV's
• Document Type:
  Text
• Place as Subject:
  Ohio ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DLCD - Division of Laboratories and Criteria Development
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-111
• NIOSHTIC Number:
  nn:00040967
• Citation:
  NIOSH 1973 Oct; :1-111
• CAS Registry Number:
  Carbon dioxide (CAS RN 124-38-9) ; Carbon monoxide (CAS RN 630-08-0) ; Ozone (CAS RN 10028-15-6) ; Sulfur dioxide (CAS RN 7446-09-5) ; Hydrogen sulfide (CAS RN 7783-06-4) ; Nitrogen dioxide (CAS RN 10102-44-0) ; Benzene (CAS RN 71-43-2) ; Carbon tetrachloride (CAS RN 56-23-5) ; Trichloroethylene (CAS RN 79-01-6) ; Tetrachloroethylene (CAS RN 127-18-4) ; Ammonia (CAS RN 7664-41-7) ; Chlorine (CAS RN 7782-50-5)
• Federal Fiscal Year:
  1974
• Peer Reviewed:
  False
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:354707bf9d6b4083fd690157070e8d93e42ef7817483963f64116a11901526915fab81c0e78012aab394d87ad8078583b12bd84d060d92dacf6e6ba70676fc57
• Download URL:
  https://stacks.cdc.gov/view/cdc/178658/cdc_178658_DS1.pdf
• File Type:
  [PDF - 5.21 MB ]