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CEN - EN 15959

Fertilizers - Determination of extracted phosphorus

inactive
Organization: CEN
Publication Date: 1 November 2011
Status: inactive
Page Count: 16
ICS Code (Fertilizers): 65.080
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.

Document History

EN 15959
December 1, 2023
Inorganic fertilizers - Determination of extracted phosphorus P2O5
This document 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...
EN 15959
November 1, 2011
Fertilizers - Determination of extracted phosphorus
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...

References

This document references:
ISO 5725-2 - Accuracy (trueness and precision) of measurement methods and results — Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
Published by ISO on December 1, 2019
This document — amplifies the general principles for designing experiments for the numerical estimation of the precision of measurement methods by means of a collaborative interlaboratory experiment;...
This document references:
EN 1482-1 - Fertilizers and liming materials - Sampling and sample preparation - Part 1: Sampling
Published by CEN on January 1, 2007
A description is not available for this item.
This document references:
EN 1482-2 - Fertilizers and liming materials - Sampling and sample preparation - Part 2: Sample preparation
Published by CEN on January 1, 2007
A description is not available for this item.
This document references:
EN 15956 - Fertilizers - Extraction of phosphorus soluble in mineral acids
Published by CEN on September 1, 2011
This document specifies a method for the determination of phosphorus soluble in mineral acids. The method is applicable exclusively to phosphate fertilizers listed in Regulation (EC) 2003/2003, Annex...
This document references:
EN 15957 - Fertilizers - Extraction of phosphorus which is soluble in neutral ammonium citrate
Published by CEN on September 1, 2011
This document specifies a method for the extraction of phosphorus soluble in neutral ammonium citrate. The method is applicable to all fertilizers in respect of which solubility in neutral ammonium...
This document is referenced by:
DIN EN 15919 - Fertilizers - Extraction of phosphorus soluble in 2 % formic acid
Published by DIN on August 1, 2011
This document specifies the procedure for the determination of phosphorus soluble in 2 % formic acid (20 g per litre). The method is applicable to soft natural phosphates exclusively.
This document is referenced by:
DIN EN 15920 - Fertilizers - Extraction of phosphorus soluble in 2 % citric acid
Published by DIN on August 1, 2011
This European Standard specifies the procedure for the determination of phosphorus soluble in 2 % citric acid (20 g/l). The method is applicable only to types of basic slag (see [1], Annex I A).
This document is referenced by:
DIN EN 15921 - Fertilizers - Extraction of soluble phosphorus according to Petermann at 65 °C
Published by DIN on August 1, 2011
This document specifies the procedure for the determination of soluble phosphorus in alkaline ammonium citrate. The method is applicable exclusively to precipitated dehydrated dicalcium phosphate...
This document is referenced by:
DIN EN 15922 - Fertilizers - Extraction of soluble phosphorus according to Petermann at ambient temperature
Published by DIN on August 1, 2011
This document specifies the procedure for the extraction of phosphorus soluble in cold alkaline ammonium citrate. The method is applicable for disintegrated phosphates exclusively.
This document is referenced by:
DIN EN 15923 - Fertilizers - Extraction of phosphorus soluble in Joulie's alcaline ammonium citrate
Published by DIN on August 1, 2011
This document specifies the procedure for the extraction of phosphorus soluble in Joulie's alkaline ammonium citrate. The method is applicable to all the straight and compound phosphate fertilizers,...
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