accepted
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.
SDN:P01::SWLA556A
Absorbance of electromagnetic radiation (556nm wavelength) {light absorbance} by the water body [dissolved plus reactive particulate <0.2um phase] by filtration and spectrophotometry
SWLA556A