TERMIUM Plus®

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

CRAYON INDICATEUR PH [1 record]

Record 1 2022-07-24

English

Subject field(s)
  • Equipment (Chemistry)
  • Analytical Chemistry
DEF

A pencil used to determine the acidity or alkalinity of a moistened surface.

CONT

... the most prevalent method [to measure pH] is to use a pH pencil and distilled water. These pencils may be obtained from companies that distribute paint testing equipment. The pH on the surface of the stucco is measured by wetting the area with distilled water, stroking the moistened surface with a pH pencil, waiting approximately 30 seconds and then comparing [the developed] color to the pH chart provided with the pencil ...

OBS

The pH pencil can be used on a variety of surfaces such as paper, textile, ceramic, cement, lumber, makeup and skin.

French

Domaine(s)
  • Équipement (Chimie)
  • Chimie analytique
DEF

Crayon permettant de déterminer l'acidité ou l'alcalinité d'une surface humectée.

CONT

Sur la surface mouillée, faire un trait avec le crayon indicateur de pH. Attendre 15 secondes. Comparer le résultat avec le tableau indicatif des couleurs qui accompagne le crayon et cocher le chiffre correspondant.

OBS

Le crayon indicateur de pH peut être utilisé sur diverses surfaces comme le papier, le tissu, la céramique, le ciment, le bois d'œuvre, le maquillage et la peau.

OBS

Même s'il s'agit de deux notions différentes, certains auteurs utilisent les termes «crayon indicateur de pH» et «crayon testeur de pH» pour désigner le stylo pH.

Spanish

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