Change Date: 24 Feb 2026, 8:44 a.m.
mass_concentration_of_suspended_matter_in_sea_water kg m-3 [UKMC] P07 id: CF12S23 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'.