Performance of Self-Contained Self-Rescuers During a Man Test 4 Protocol for the Automated Breathing and Metabolic Simulator

Details

• Personal Author:
  Hota S ; Sinkule E ; Turner N
• Description:
  The Automated Breathing and Metabolic Simulator (ABMS) simulates human oxygen consumption, carbon dioxide production, minute ventilation, and breathing waveforms. Using metabolic data collected during a one-hour Man Test 4 performed by human subjects, two ABMS Man Test 4 protocols were developed: one simulating an 86 kg subject (MT4-50) and one simulating a 104 kg subject (MT4-95). NIOSH-approved 6O-minute self-contained self-rescuer (SCSR) models A, B, C, and D (one compressed-oxygen, three chemical-oxygen models) were tested using MT4-50 (n=4) and MT4-95 (n=4). Test duration was determined using the following criteria: average inhaled 02 (PI02) < 19.5%, average inhaled CO2 (PIC02) > 4%, minimum inhaled CO2 (FIC02min) > 1.5%, peak exhalation pressure (PE) > 350 mmH20, peak inhalation pressure (PI) < -350 mmH20, end-inhaled dry-bulb temperature (Tdb) > 56 degrees C, and end-inhaled wet-bulb temperature (Twb) > 500C. For MT4-50, duration was 65.5, 90.3, 66.3, and 75.5 min; and for MT4-95, duration was 45.3, 66.0, 50.3, and 63.8 min for models A, B, C, and D, respectively. During the sample period at minute 60 of MT4-50, FI02 was 80.8, 58.6, 82.8, and 86.3%; FIC02 was 2.4, 0.6,2.4, and 1.3%; FIC02min was 0.2, 0.2, 0.0, and 0.0%; PE was 208, 42, 46, and 59 mmH20; PI was -190, -30, -52, and -46 mmH20; Tdb was 53.3, 43.0, 49.7, and 44.8 degrees C; and Twb was 46.1, 43.1, 43.1, and 39.7 degrees C for models A, B, C, and D, respectively. During the minute 60 sample period of MT4-95, FIO2 was 35.1 and 74.9%; FICO2 was 1.1 and 1.8%; FICO2min was 0.6 and 0.0%; PE was 53 and 65 mmH20; PI was -49 and -67 mmH20; Tdb was 46.7 and 46.4 degrees C; and Twb was 46.7 and 43.1 OC for models B and D, respectively. These data demonstrate that the SCSR's performed as expected during the ABMS Man Test 4. [Description provided by NIOSH]
• Subjects:
  Energy Metabolism Occupational Health Respiratory System Safety Ventilation
• Keywords:
  Breathing Inhalation-studies Metabolic-study Models Self-contained-breathing-apparatus Simulation-methods
• Series:
  Mining Publications
• Publisher:
  American Industrial Hygiene Association
• Document Type:
  Text
• Genre:
  Abstract or Summary
• Place as Subject:
  California ; OSHA Region 3 ; OSHA Region 9 ; Pennsylvania ; West Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DRDS - Division of Respiratory Disease Studies ; PRL - Pittsburgh Research Laboratory
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  47
• NIOSHTIC Number:
  nn:20022426
• Citation:
  American Industrial Hygiene Conference and Exposition, June 1-6, 2002, San Diego, California. Fairfax, VA: American Industrial Hygiene Association, 2002 Jun; :47
• CAS Registry Number:
  Carbon dioxide (CAS RN 124-38-9) ; Oxygen (CAS RN 7782-44-7)
• Federal Fiscal Year:
  2002
• NORA Priority Area:
  Research Tools and Approaches: Control Technology and Personal Protective Equipment
• Peer Reviewed:
  False
• Source Full Name:
  American Industrial Hygiene Conference and Exposition, June 1-6, 2002, San Diego, California
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:7685b884f5e16091f084214ea64265513ca1ebf4d0fbedc415d0b1db8a238d50447af1ed85126c4cb6a7a2025d8202ceb3a255f7932b3553ef09d7c29401c64f
• Download URL:
  https://stacks.cdc.gov/view/cdc/220551/cdc_220551_DS1.pdf
• File Type:
  [PDF - 306.45 KB ]