TERMIUM Plus®

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

LANGELIER INDEX [1 record]

Record 1 2016-02-25

English

Subject field(s)
  • Environmental Studies and Analyses
  • Water Treatment (Water Supply)
DEF

The value obtained by subtracting the saturation pH (pHs) from the measured pH of a water sample.

CONT

The Langelier index ... can be used to determine whether a water is scale-forming ... or aggressive ...

OBS

The pHs is the calculated pH that would be obtained if the water were in equilibrium with solid calcium carbonate.

OBS

Langelier index: term and definition standardized by ISO.

French

Domaine(s)
  • Études et analyses environnementales
  • Traitement des eaux
DEF

Valeur obtenue en soustrayant le pH de saturation (pHs) du pH mesuré de l'échantillon d'eau.

CONT

L'indice de Langelier [...] permet de déterminer si une eau est incrustante [...] ou agressive [...]

OBS

Le pHs est le pH calculé qui devrait être obtenu si l'eau était en équilibre avec le carbonate de calcium solide.

OBS

indice de Langelier : terme et définition normalisés par l'ISO.

Spanish

Campo(s) temático(s)
  • Estudios y análisis del medio ambiente
  • Tratamiento del agua
DEF

Valor obtenido substrayendo el pH de saturación (pHs) del pH medido en una muestra de agua.

OBS

El pHs es el pH calculado que debería obtenerse si el agua estuviera en equilibrio con el carbonato de calcio sólido.

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