TERMIUM Plus®

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OCTANE INDEX [1 record]

Record 1 2004-03-16

English

Subject field(s)
  • Crude Oil and Petroleum Products
  • Gasoline Motors
  • Environmental Studies and Analyses
DEF

The average of the Research (R) and Motor (M) octane number for the fuel, i.e., (R + M)/2.

Key term(s)
  • anti-knock index
  • anti-knock value
  • antiknock value

French

Domaine(s)
  • Pétroles bruts et dérivés
  • Moteurs à essence
  • Études et analyses environnementales
OBS

Somme de l'indice d'octane recherche (R) et de l'indice d'octane moteur (M) du carburant divisée par deux, soit (R + M)/2.

OBS

La valeur antidétonante d'une essence est sa capacité à résister au cognement et l'indice d'octane mesure cette capacité.

Key term(s)
  • valeur antidétonante

Spanish

Campo(s) temático(s)
  • Petróleo bruto y derivados
  • Motores de gasolina
  • Estudios y análisis del medio ambiente
DEF

Índice que mide la detonación en motores Otto. Ha sido fijado arbitrariamente por porcentaje de mezcla entre el isooctano, el más explosivo, y el n-heptano, el menos explosivo.

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