ISO 7497:1984

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Fertilizers - Extraction of phosphates soluble in mineral acids

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ISO 7497:1984

Fertilizers - Extraction of phosphates soluble in mineral acids

PUBLISH DATE 1984
ISO 7497:1984

Specifies two equivalent methods.

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

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