. . . "pheo-a_water_GF/F-5um_fluor_SD" . . "accepted"@en . . "The square root of the average of the squares of deviations about the mean of a set of values of the specified measurement."@en . . "SDN:P01::SDHLPHPM" . . . "Concentration standard deviation of phaeophytin-a {pheophytin-a CAS 603-17-8} per unit volume of the water body [particulate GF/F-5um phase] by filtration, acetone extraction and fluorometry"@en . . . . . . . . . . . . . . . . . . . . . . . .