oxygen concentration limit during the combustion of polymeric materials


minimum volumetric amount of oxygen contained in the nitrogen-oxygen mixture, in the presence of which the material can still combust after ignition from the bottom


  • NOTE 1 It is expressed as a percentage and determined using the equation:
  • NOTE 2 i.e. the arithmetic average of the concentration limit calculated as a function of the results of unit measurements of (Clim,i).
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