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Overview ISO 6878:2004 - "Water quality - Determination of phosphorus - Ammonium molybdate spectrometric method" specifies validated colorimetric procedures for measuring different phosphorus fractio…
1 Scope This International Standard specifies methods for the determination of — orthophosphate (see Clause 4); — orthophosphate after solvent extraction (see Clause 5); — hydrolysable phosphate plus…