Report of Investigations 8898: The Effect of Water Vapor and Water Droplets on the RAM-1 (Preliminary Results)

Details

• Journal Article:
  Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 8898
• Personal Author:
  Jayaraman, Natesa I. ; Schnakenberg, George H. Jr. ; Vinson, Robert P. ; Williams, Kenneth L.
• Description:
  The Bureau of Mines examined the effects of high humidity and water droplets on the GCA Corp. real-time aerosol monitor (RAM-1), which used a 10-mm cyclone preseparator. Tests were conducted both in a laboratory and in a full-scale model mine entry. The laboratory tests were conducted in a test chamber saturated with moisture and water droplets. Under these extreme conditions, the ram-1 responded by indicating dust concentrations of 1 1/2 to 2 mg/m3, although the air was dust free. Within the first 2 h of each test, water accumulated in the cyclone and affected the cyclone particle separation characteristics, resulting in readings of 3 to 4 mg/m3. In addition, condensation formed inside the ram-1 case and affected the liquid crystal display. However, the full-scale mine entry tests revealed that the RAM-1 can function acceptably in an atmosphere of water vapor and water droplets similar to the most severe conditions found in an underground mine. [Description provided by NIOSH]
• Subjects:
  Aerosols Air Pollution Dust Humidity Mining Occupational Health Safety
• Keywords:
  Dust; Monitors; Instrument-characteristics; Mine-ventilation; Dust-control; Water-impingement; Humidity; Sprayers; Aerosols; Air-pollution
• Source:
  Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 8898, 1984 Jan; :1-11
• Series:
  NIOSH Numbered Publications   ; Mining Publications  
• Subseries:
  Report of Investigations
• Document Type:
  Text
• Genre:
  Report
• Place as Subject:
  OSHA Region 3 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  PRC - Pittsburgh Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  16 pdf pages
• NIOSHTIC Number:
  nn:10004018
• NTIS Accession Number:
  PB85-109429
• Federal Fiscal Year:
  1984
• Peer Reviewed:
  False
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:d9bd2246e3fadf1f5f56983b57f44363a6daf2e9b4f1f256a63789d51a0c2ef032c6abc279f612d7c7906ef310a5be8f9a66461b0542d22269f8610c9bde664e
• Download URL:
  https://stacks.cdc.gov/view/cdc/10735/cdc_10735_DS1.pdf
• File Type:
  [PDF - 5.45 MB ]