Fertilizers. Determination of extracted phosphorus Ingestion-build-59651 Managers and contractors responsible for

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Fertilizers. Determination of extracted phosphorus Ingestion-build-59651 Managers and contractors responsible for1 Scope This European Standard specifies a method for the determination of phosphorus in fertilizer extracts. The method is applicable to all extracts of fertilizers for the determination of the different forms of phosphorus as phosphorus soluble in mineral acids, water soluble phosphorus, phosphorus soluble in solutions of ammonium citrate, phosphorus soluble in 2 % citric acid and phosphorus soluble in 2 % formic acid.