Fertilizers. Determination of ammoniacal nitrogenBS EN 15475: 2009 Fertilizers. Determination of ammoniacal nitrogen BS EN 15475 specifies a method for the determination of the ammoniacal nitrogen content in fertilizers. The method is applicable to all nitrogenous fertilizers including compound fertilizers, in which nitrogen is found exclusively either in the form of ammonium salts or ammonium salts together with nitrates. BS EN 15475 does not apply to fertilizers containing urea, cyanamide or other

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EN ISO 10684

5 Standard reference conditions

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