. . . . . . . . . . "The square root of the average of the squares of deviations about the mean of a set of values of the specified measurement."@en . . . "accepted"@en . "total_Sc_aerosol_SD" . . . "Concentration standard deviation of scandium {Sc CAS 7440-20-2} per unit volume of the atmosphere [aerosol phase]"@en . "SDN:P01::CSC88999" . . . . . . . . .