TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

The mole fraction of hydrocarbon multiplied by 10⁶ measured on a methane-equivalence basis. [Definition officially approved by ICAO.]  1, record 1, English, - part%20per%20million%20carbon

Record number: 1, Textual support number: 1 OBS

Thus, 1 ppm of methane is indicated as 1 ppmC. To convert ppm concentration of any hydrocarbon to an equivalent ppmC value, multiply ppm concentration by the number of carbon atoms per molecule of the gas. For example, 1 ppm propane translates as 3 ppmC hydrocarbon; 1 ppm hexane as 6 ppmC hydrocarbon.  1, record 1, English, - part%20per%20million%20carbon

Record number: 1, Textual support number: 2 OBS

Engine emissions.  1, record 1, English, - part%20per%20million%20carbon

Record number: 1, Textual support number: 3 OBS

part per million carbon; ppmC: term and abbreviation officially approved by the International Civil Aviation Organization (ICAO).  2, record 1, English, - part%20per%20million%20carbon

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 DEF

Proportion en moles d'hydrocarbure multipliées par 10⁶, mesurée en équivalent de méthane. [Définition uniformisée par l'OACI.]  1, record 1, French, - partie%20de%20carbone%20par%20million

Record number: 1, Textual support number: 1 OBS

Ainsi, une ppm de méthane est exprimée par une ppmC. Pour convertir la concentration en ppm d'un hydrocarbure en ppmC équivalente, on multiplie la concentration en ppm par le nombre d'atomes de carbone par molécule du gaz. Par exemple, une ppm de propane devient 3 ppmC; une ppm d'hexane, 6 ppmC.  1, record 1, French, - partie%20de%20carbone%20par%20million

Record number: 1, Textual support number: 2 OBS

partie de carbone par million; ppmC : terme et abréviation uniformisés par l'Organisation de l'aviation civile internationale (OACI).  2, record 1, French, - partie%20de%20carbone%20par%20million

Record 1,  Textual support,  Spanish

Record number: 1, Textual support number: 1 DEF

La fracción mol de hidrocarburo multiplicada por 10⁶, medida por referencia al metano. [Definición aceptada oficialmente por la OACI.]  1, record 1, Spanish, - parte%20por%20mill%C3%B3n%20de%20carbono

Record number: 1, Textual support number: 1 OBS

Así pues, 1 ppm de metano se indica como 1 ppmC. Para convertir la concentración de una ppm de cualquier hidrocarburo a una ppmC equivalente, multiplíquese la concentración ppm por el número de átomos de carbono por molécula de gas. Por ejemplo, 1 ppm de propano equivale a 3 ppmC de hidrocarburo; 1 ppm de hexano equivale a 6ppmC de hidrocarburo.  1, record 1, Spanish, - parte%20por%20mill%C3%B3n%20de%20carbono

Record number: 1, Textual support number: 2 OBS

parte por millón de carbono; ppmC: término y abreviatura aceptados oficialmente por la Organización de Aviación Civil Internacional (OACI).  2, record 1, Spanish, - parte%20por%20mill%C3%B3n%20de%20carbono