TERMIUM Plus®

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CHEMICAL FOAM FIRE EXTINGUISHER [1 record]

Record 1 1999-03-23

English

Subject field(s)
  • Fire-Fighting and Rescue Equipment
DEF

Fire extinguisher from which chemical foam is expelled when the chemical solutions, stored separately within the body of the extinguisher, are allowed to mix and react.

OBS

chemical foam. An extinguishing agent in which an alkaline salt solution (usually bicarbonate of soda) and an acid salt solution (usually aluminum sulphate) react to form a gas (carbon dioxide) in the presence of a foaming agent, which causes the gas to be trapped in bubbles to form a tough fire-resistant foam.

Key term(s)
  • chemical foam extinguisher

French

Domaine(s)
  • Matériel de secours et de lutte (incendies)
DEF

Extincteur qui produit la mousse chimique lorsque les solutions chimiques, contenues séparément à l'intérieur du corps de l'extincteur, sont mélangées et réagissent entre elles.

OBS

L'agent extincteur peut être obtenu de deux façons : par l'action d'une solution acide sur une solution basique contenant un produit émulsifiant : la mousse est alors dite chimique; par l'effet d'une pression auxiliaire sur une émulsion ou une solution contenant un émulsifiant : la mousse est alors dite physique.

Spanish

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