The 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.
DIN EN 15919:2011 Referenced Document
EN 12944-1:1999 Fertilizers and Liming Materials - Vocabulary - Part 1: General Terms
EN 12944-2:1999 Fertilizers and Liming Materials - Vocabulary - Part 2: Terms Relating to Fertilizers
EN 1482-2 Fertilizers and liming materials - Sampling and sample preparation - Part 2: Sample preparation
DIN EN 15919:2011 history
2011DIN EN 15919:2011-08 Fertilizers - Extraction of phosphorus soluble in 2 % formic acid; German version EN 15919:2011
2011DIN EN 15919:2011 Fertilizers - Extraction of phosphorus soluble in 2 % formic acid; German version EN 15919:2011
2010DIN SPEC 1092:2010 Fertilizers - Extraction of phosphorus soluble in 2 % formic acid; German version CEN/TS 15919:2009