Concept information
Preferred term
mass_concentration_of_nox_expressed_as_nitrogen_in_air
Definition
- Mass concentration means mass per unit volume and is used in the construction mass_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. "Nox" means a combination of two radical species containing nitrogen and oxygen: NO+NO2. The phrase 'expressed_as' is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A.
Note
- Mapping to be determined
URI
https://vocab.met.no/CFSTDN/mass_concentration_of_nox_expressed_as_nitrogen_in_air
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