Information Circular 9451: Self-Contained Self-Rescuer Field Evaluation: Sixth-Phase Results

Details

• Journal Article:
  National Institute for Occupational Safety and Health
• Personal Author:
  Kyriazi, Nicholas ; Shubilla, John P.
• Description:
  NIOSH, Pittsburgh Research Laboratory, has undertaken a study to determine how well self-contained self-rescuers (SCSRs), deployed in accordance with Federal regulations (30 CFR 75.1714), hold up in the underground environment with regard to both physical damage and aging. This report presents findings regarding laboratory-tested SCSRs in the sixth phase of testing from mid-1996 to early 1998. The SCSRs were tested on human subjects and on a breathing and metabolic simulator. These results indicate that most of the apparatus, if they pass their inspection criteria, perform satisfactorily. However, the deployed CSE SR-100s exhibited significantly higher inhaled CO2 levels that new units, as in the previous phase. This will cause higher ventilation rates i most users, which will, in turn, result in higher breathing pressures, possibly causing users to prematurely remove the apparatus. CSE Corp. has developed a noise test that can identify apparatus suffering from chemical-bed degradation causing the early CO2 breakthrough. This test was added to the inspection criteria for the SR-100. In addition, several of the MSA Portal-Packs that passed their inspection criteria were found to have KO2 dust in their mouthpieces. Further investigations by NIOSH and the Mine Safety and Health Administration confirmed these findings, which resulted in the decertification of the apparatus and their removal from service. [Description provided by NIOSH]
• Content Notes:
  by Nicholas Kyriazi and John P. Shubilla.
  
  Includes bibliographical references.
  
  
• Subjects:
  Occupational Health Personal Protective Equipment Respiratory Protective Devices Safety Testing Ventilation
• Keywords:
  Respirators; Personal-protective-equipment; Fit-testing; Ventilation; Breathing-pressures; Self-contained-self-rescuers; Mine-rescue; Personal-protective-equipment; Respiratory-protective-equipment
• Source:
  Pittsburgh, PA: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, DHHS (NIOSH) Publication No. 2000-128, (IC 9451), 2000 Jul; :1-13
• Series:
  NIOSH Numbered Publications
• Subseries:
  Information Circular
• Publisher:
  National Institute for Occupational Safety and Health
• Document Type:
  Text
• Genre:
  Report
• Place as Subject:
  OSHA Region 3 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  PRL - Pittsburgh Research Laboratory
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  19 pdf pages
• NIOSHTIC Number:
  nn:20000620
• NTIS Accession Number:
  PB2001-101414
• Federal Fiscal Year:
  2000
• Peer Reviewed:
  False
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:5c5b0cff73309ec66317afb46d408fddfa1a17d80ef4c25afcee54cd6c166b94eaa2d9ebc5b45586334c1785c8c46febb4df9cc6805a39b6658edb9633bb99cc
• Download URL:
  https://stacks.cdc.gov/view/cdc/6397/cdc_6397_DS1.pdf
• File Type:
  [PDF - 2.58 MB ]