Development of a Prototype Service-Life Indicator for Organic Vapor Respirators

Details

• Personal Author:
  Cohen ML ; Grain CF ; Lindsay DB ; Loeffler H ; Sidman KR ; Smith EM ; Stricoff, R. Scott
• Description:
  A NIOSH sponsored effort to develop and test a prototype service life indicator for organic vapor air purifying respirators is reported. A series of performance requirements for an end of service life indicator (ESLI) was developed which addressed indicator characteristics, specificity, reliability, respirator fit, weight, impairment of vision, durability, breathing resistance, temperature and humidity, electrical components, and toxic materials. A theoretical evaluation of various detection approaches was conducted to select a specific developmental approach. It was found that the metal oxide gas sensor (MOGS) merited further assessment because of its low cost, commercial availability and desirable nonspecificity. Also, catalytic oxidation was studied. Experimental evaluation showed that the MOGS responded to a large number of organic vapors within a relatively small concentration range. A prototype ESLI incorporating the MOGS was designed and constructed. The device consisted of a belt or shirt pocket mounted battery pack connected to a detector/indicator unit fitted between the respirator facepiece and the chemical cartridge. It is recommended that the ESLI be tested under actual use conditions, and that the MOGS detector be tested against additional challenge atmospheres. [Description provided by NIOSH]
• Subjects:
  Occupational Health Personal Protective Equipment Respiratory Protective Devices Safety
• Keywords:
  Air-quality-control Contract-210-76-0163 NIOSH-Contract Personal-protective-equipment Protective-equipment Respiratory-protective-equipment Safety-equipment
• Series:
  NIOSH Numbered Publications
• Publisher:
  National Institute for Occupational Safety and Health
• Document Type:
  Text
• Funding:
  Contract
• Genre:
  Report
• Place as Subject:
  Ohio ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DPSE - Division of Physical Sciences and Engineering
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-57
• NIOSHTIC Number:
  nn:00083752
• NTIS Accession Number:
  PB91-136309
• Citation:
  Cincinnati, OH: U.S. Department of Health, Education, and Welfare, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, DHEW (NIOSH) Publication No. 78-170, 1978 Aug; :1-57
• Federal Fiscal Year:
  1978
• Peer Reviewed:
  False
• Source Full Name:
  National Institute for Occupational Safety and Health
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:bb972ba35c2e967db49e5876d3613725aa9647c206dd5722e23d30482c00dfe37cb2c2d7e514f9e26d5403652bbbf5bbf4fd94daa096a7f2a8a96de10f659ca3
• Download URL:
  https://stacks.cdc.gov/view/cdc/209344/cdc_209344_DS1.pdf
• File Type:
  [PDF - 2.07 MB ]