. . . . . "The combined uncertainty associated with the specified measurement. The method used to estimate uncertainty should be described in the usage metadata."@en . . . . . "accepted"@en . . "d3He_Uncert_Unfilt" . . "SDN:P01::DHE3XXER" . "Enrichment combined uncertainty of helium-3 {3He CAS 14762-55-1} in the water body [dissolved plus reactive particulate phase]"@en . . . . . . . . . . . . . . . . . .