. . . . . . "SWLA514A" . . . "Absorbance of electromagnetic radiation (514nm wavelength) {light absorbance} by the water body [dissolved plus reactive particulate <0.2um phase] by filtration and spectrophotometry"@en . "The proportion of the incident light of the specified wavelength that is absorbed by a sample from any body of fresh or salt water that has been filtered through a 0.2um pore filter."@en . . . . . "SDN:P01::SWLA514A" . . "accepted"@en . . . . . . . . . . . . .