Concentration standard deviation of total phosphorus {total_P CAS 7723-14-0} {TDP} per unit volume of the water body [dissolved plus reactive particulate <GF/F phase] by filtration DTP_<GFF_SD The square root of the average of the squares of deviations about the mean of a set of values of the specified measurement. 2020-03-19 10:42:11.0 SDN:P01::SDTPWCD1 SDN:P01::SDTPWCD1 SDN:P01::SDTPWCD1 6 6 2020-03-19 10:42:11.0 accepted false