Record Label : mass_fraction_of_methane_in_air
Record Title : Mass Fraction of Methane in Air
CF Standard Name : mass_fraction_of_methane_in_air
Record Description : "Mass fraction" is used in the construction "mass_fraction_of_X_in_Y", where X is a material constituent of Y. It means the ratio of the mass of X to the mass of Y (including X). A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The chemical formula for methane is CH4. Methane is a member of the group of hydrocarbons known as alkanes. There are standard names for the alkane group as well as for some of the individual species.
Canonical Units : 1