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NOTE: This page is archived for historical purposes and is no longer being maintained or updated.
Current Information can be found at: LONG-TERM FIELD EVALUATION (LTFE) OF SCSRs - FY08


  • To evaluate the reliability of Self-Contained Self-Rescuers (SCSRs) deployed in US underground coal mines.
Miners wearing Self Contained Self Rescuer (S C S R)

Applicable Standards

  • 42 CFR 84
  • 30 CFR 75

Key Partners

  • MSHA


  • BCOA
  • NMA
  • UMWA
  • USWA
  • SCSR Manufacturers

Project Scope

  • Collect 200 SCSRs per year from a variety of regions, type of mining operations, and deployment mode, according to market share.
  • Test the apparatus on a breathing and metabolic simulator (90%) and on human subjects walking on a treadmill (10%) to determine life support capability and to ensure that every apparatus that passes its inspection criteria can be relied upon for emergency life support.
  • Perform data analysis and write reports for publication.


  • None


  • Reports of Investigation for Phase 8 and Phase 9 (RI 9671)
  • Problem reports to NIOSH Technology Evaluation Branch
  • Directives to SCSR manufacturers for corrective actions


  • Validation that equipment is performing as certified
  • Corrective actions by manufacturers to address reported problems.
Page last modified: July 23, 2007
Page last reviewed: July 23, 2007 (archived document)
Content Source: National Institute for Occupational Safety and Health (NIOSH)