TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
CONCENTRATION MASSE [2 records]
Record 1 - internal organization data 2011-07-11
Record 1, English
Record 1, Subject field(s)
- Atmospheric Physics
- Metrology and Units of Measure
Record 1, Main entry term, English
- specific humidity
1, record 1, English, specific%20humidity
correct, standardized
Record 1, Abbreviations, English
Record 1, Synonyms, English
- mass concentration 3, record 1, English, mass%20concentration
correct
- moisture content 3, record 1, English, moisture%20content
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
The ratio of the mass of water vapor actually in the air to a unit mass of air ... usually expressed in the metric system. 4, record 1, English, - specific%20humidity
Record number: 1, Textual support number: 1 OBS
A kilogram (1000 grams) of air of which 12 grams are water vapor has a specific humidity of 12 grams per kilogram. 4, record 1, English, - specific%20humidity
Record number: 1, Textual support number: 2 OBS
A closely related term is mixing ratio, which is the mass of water vapor per unit mass of dry air. The mixing ratio is, in a sense, a recipe for an admixture of water vapor and dry air. A value of 12 grams per kilogram would entail a total of 1012 grams for the mixture. For most conditions, the specific humidity and the mixing ratio differ insignificantly. 4, record 1, English, - specific%20humidity
Record number: 1, Textual support number: 3 OBS
specific humidity: term standardized by ISO. 5, record 1, English, - specific%20humidity
Record 1, French
Record 1, Domaine(s)
- Physique de l'atmosphère
- Unités de mesure et métrologie
Record 1, Main entry term, French
- humidité spécifique
1, record 1, French, humidit%C3%A9%20sp%C3%A9cifique
correct, feminine noun, standardized
Record 1, Abbreviations, French
Record 1, Synonyms, French
- concentration de masse 3, record 1, French, concentration%20de%20masse
correct, feminine noun, standardized
- contenu en vapeur d'eau 3, record 1, French, contenu%20en%20vapeur%20d%27eau
correct, masculine noun, standardized
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Masse de vapeur d'eau contenue dans l'unité de masse d'air humide généralement exprimée en grammes de vapeur par kilogramme d'air humide. 4, record 1, French, - humidit%C3%A9%20sp%C3%A9cifique
Record number: 1, Textual support number: 1 OBS
Ne pas confondre avec le rapport de mélange (grammes de vapeur par kilogramme d'air sec) qui est une approximation de l'humidité spécifique; ces deux notions sont néanmoins souvent confondues dans la pratique parce que la différence entre ces deux mesures est souvent inférieure aux simples erreurs dues à la manipulation des instruments qui servent à les mesurer. 5, record 1, French, - humidit%C3%A9%20sp%C3%A9cifique
Record number: 1, Textual support number: 2 OBS
humidité spécifique; concentration de masse; contenu en vapeur d'eau : termes normalisés par l'ISO. 6, record 1, French, - humidit%C3%A9%20sp%C3%A9cifique
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Física de la atmósfera
- Metrología y unidades de medida
Record 1, Main entry term, Spanish
- humedad específica
1, record 1, Spanish, humedad%20espec%C3%ADfica
correct, feminine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
- contenido de humedad 2, record 1, Spanish, contenido%20de%20humedad
masculine noun
- concentración de masa 3, record 1, Spanish, concentraci%C3%B3n%20de%20masa
feminine noun
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 DEF
Relación que se establece entre una masa de vapor de agua y una masa de aire que contiene dicho vapor. 4, record 1, Spanish, - humedad%20espec%C3%ADfica
Record number: 1, Textual support number: 1 CONT
La humedad específica es la masa de vapor de agua por unidad de masa de aire [...] 5, record 1, Spanish, - humedad%20espec%C3%ADfica
Record 2 - internal organization data 1998-08-06
Record 2, English
Record 2, Subject field(s)
- Air Pollution
- Pollutants
- Climatology
Record 2, Main entry term, English
- mass concentration
1, record 2, English, mass%20concentration
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
Concentration expressed in terms of mass of substance per unit volume of gas or liquid. 2, record 2, English, - mass%20concentration
Record number: 2, Textual support number: 1 OBS
Compare to "volume concentration" which is expressed in parts per million. 3, record 2, English, - mass%20concentration
Record 2, French
Record 2, Domaine(s)
- Pollution de l'air
- Agents de pollution
- Climatologie
Record 2, Main entry term, French
- concentration massique
1, record 2, French, concentration%20massique
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- concentration en masse 1, record 2, French, concentration%20en%20masse
correct, feminine noun
- concentration massive 2, record 2, French, concentration%20massive
avoid, feminine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
Méthode de mesure des aérosols. Les quantités les plus souvent déterminées sont : la concentration massique ou en nombre, la fonction de distribution en dimension dans un domaine limité, le coefficient d'extinction, la composition chimique globale ou d'une fraction discrète de la granulométrie. [...] Mesure de la concentration massique. C'est, pour l'essentiel, l'utilisation de la filtration qui permet d'obtenir à moindre coût une caractérisation de la masse totale des particules présentes dans un volume d'air donné. La masse d'aérosol prélevé sera alors déterminée par pesée sous atmosphère contrôlée. 1, record 2, French, - concentration%20massique
Record number: 2, Textual support number: 1 OBS
Par opposition à la concentration massique on trouve la concentration volumique qui s'exprime souvent en parties par million. 3, record 2, French, - concentration%20massique
Record 2, Spanish
Record 2, Textual support, Spanish
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