Concentration standard deviation of gallium {Ga CAS 7440-55-3} per unit volume of the water body [particulate >0.4/0.45um phase] by filtration, acid digestion and inductively-coupled plasma mass spectrometry Part_Ga>0.4/0.45_ICPMS_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::CGA11012 SDN:P01::CGA11012 SDN:P01::CGA11012 2 2 2018-10-15 17:05:31.0 accepted false