TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

LIMITING OXYGEN INDEX [1 record]

Record 1 2016-11-09

English

Subject field(s)
  • Engineering Tests and Reliability
DEF

The minimum concentration of oxygen in a mixture of oxygen and nitrogen that will just support flaming combustion of a material under specified test conditions.

CONT

LOI is defined as the minimum volume concentration of oxygen in a mixture of oxygen and nitrogen that will just support sustained combustion of the material when ignited in a vertical position at its uppermost edge. Cotton fabrics, for example, have a LOI of 17 percent which means that if the oxygen is reduced below 17 percent the cotton will not continue to burn after the ignition source is removed. The higher the LOI of a fabric, the greater the probability that it will cease to burn once the ignition source is removed.

OBS

limiting oxygen index: term and definition standardized by ISO.

French

Domaine(s)
  • Fiabilité, contrôle et essais (Ingénierie)
DEF

Concentration minimale d'oxygène dans un mélange d'oxygène et d'azote qui entretiendra seulement la combustion avec flammes d'un matériau dans des conditions d'essai spécifiées.

OBS

indice limite d'oxygène : Il s'exprime en pourcentage.

OBS

indice limite d'oxygène : terme et définition normalisés par l'ISO.

Spanish

Campo(s) temático(s)
  • Fiabilidad y ensayos (Ingeniería)
DEF

Mínima concentración de oxígeno en una mezcla de oxígeno y nitrógeno que soporta la combustión con llamas de un material bajo condiciones de ensayo especificadas.

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