Concentration standard deviation of cysteine {Cys CAS 3374-22-9} per unit volume of the water body [dissolved plus reactive particulate <0.4/0.45um phase] Conc_Cys_water<0.4/0.45um_SD The square root of the average of the squares of deviations about the mean of a set of values of the specified measurement. 2018-10-15 17:05:31.0 SDN:P01::CYS04X02 SDN:P01::CYS04X02 SDN:P01::CYS04X02 2 2 2018-10-15 17:05:31.0 accepted false