ISO 7497:1984 View larger

ISO 7497:1984

M00001240

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ISO 7497:1984 Fertilizers - Extraction of phosphates soluble in mineral acids

standard by International Organization for Standardization, 11/01/1984

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Specifies two equivalent methodes. They consist in dissolving the wanted substance in a mixture of hydrochloric and nitric acids or in a mixture of sulfuric and nitric acids.