EFFECT OF VARYING PERCENTAGES AND PARTIAL PRESSURES OF OXYGEN ON FLAME SIZE.

Abstract

The match test (or candle flame) tells whether the O2 percent is low, before a person experiences any symptoms whatever of hypoxia. The test gives no direct information about CO or CO2. There may be lethal concentrations of carbon monoxide in the air although the match test is normal. (1 % CO caused no change in the flame in some experiments.) In the case of CO2, such high concentrations are needed to influence the flame that other effects on the individual would be apparent first. In heating appliances where the fuel and air supply are regulated, however, soot and CO formation will occur more easily when the O2 percentage is low. Even at high altitudes, air crews should not presume that high percentages of oxygen are less dangerous in case of fire. (Author)

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1965
Accession Number
AD0635302

Entities

People

  • F. Vogt Lorentzen

Tags

DTIC Thesaurus Topics

  • Air Supplies
  • Altitude
  • Carbon Monoxide
  • Dielectric Gases
  • High Altitude
  • Monoxides
  • Oxygen
  • Partial Pressure

Readers

  • Combustion science or combustion engineering.
  • Educational Psychology
  • Internal Combustion Engine (ICE) Technology.