TERMIUM Plus®

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

VISCOSITY INDEX [1 record]

Record 1 2017-06-12

English

Subject field(s)
  • Fluid Mechanics and Hydraulics (Physics)
  • Crude Oil and Petroleum Products
  • Black Products (Petroleum)
DEF

A number on a conventional scale used to characterize the variation of the viscosity of an oil with temperature. [Definition standardized by ISO.]

OBS

A high viscosity index indicates a relatively small change of viscosity with temperature and vice versa.

OBS

viscosity index: term standardized by ISO.

OBS

viscosity index: term officially approved by the Lexicon Project Committee (New Brunswick).

French

Domaine(s)
  • Mécanique des fluides et hydraulique (Physique)
  • Pétroles bruts et dérivés
  • Produits noirs (Pétrole)
DEF

Nombre caractérisant, dans une échelle conventionnelle, la variation de la viscosité d'une huile en fonction de la température. [Définition normalisée par l'ISO.]

OBS

Plus cette variation est faible et plus l'indice de viscosité est élevé, et inversement.

OBS

indice de viscosité : terme normalisé par l'ISO.

OBS

indice de viscosité : terme uniformisé par le Comité du projet de lexiques (Nouveau-Brunswick).

Spanish

Campo(s) temático(s)
  • Mecánica de fluidos e hidráulica (Física)
  • Petróleo bruto y derivados
  • Productos negros (Petróleo)
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