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Normas DIN – AENOR
DIN EN 15921:2010-11

DIN EN 15921:2010-11

Fertilizers - Extraction of soluble phosphorus according to Petermann at 65 °C; German version FprEN 15921:2010 / Note: Date of issue 2010-10-18

Engrais - Extraction du phosphore soluble selon Petermann à 65 °C; Version allemande FprEN 15921:2010 / Attention: Date de parution 2010-10-18

Düngemittel - Extraktion des löslichen Phosphors nach Petermann bei 65 °C; Deutsche Fassung FprEN 15921:2010 / Achtung: Erscheinungsdatum 2010-10-18

Fecha Anulación:
2011-08 /Withdrawn
Equivalencias internacionales:

FprEN 15921 (2010-10)

Relación con otras normas DIN:

Reemplazada por: DIN EN 15921:2011-08

Resumen:
The document specifies the procedure for the determination of soluble phosphorus in alcaline ammonium citrate. The method is applicable exclusively to precipitated dehydrated dicalcium phosphate (CaHPO4 . 2H2O).
Keywords:
Alkaline, Ammonium salt, Analysis, Chemical analysis and testing, Citric acid, Content, Determination of content, Extraction, Extraction methods of analysis, Fertilizers, Methods, Petermann, Phosphorous acid, Phosphorus, Phosphorus content, Soil improvement, Soil improving materials, Solutions
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