EN 15921:2011
Current
The latest, up-to-date edition.
Fertilizers - Extraction of soluble phosphorus according to Petermann at 65 °C
08-06-2011
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Sampling
6 Reagents
7 Apparatus
8 Procedure
Bibliography
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 (CaHPO4 . 2H2O).
| Committee |
CEN/TC 260
|
| DevelopmentNote |
Supersedes CEN/TS 15921. (06/2011) Supersedes PREN 15921. (08/2011)
|
| DocumentType |
Standard
|
| PublisherName |
Comite Europeen de Normalisation
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| SN EN 15921:2011 | Identical |
| NBN EN 15921 : 2011 | Identical |
| NF EN 15921 : 2011 | Identical |
| BS EN 15921:2011 | Identical |
| NS EN 15921 : 2011 | Identical |
| UNE-EN 15921:2011 | Identical |
| DIN EN 15921:2011-08 | Identical |
| I.S. EN 15921:2011 | Identical |
| PN EN 15921 : 2011 | Identical |
| NEN EN 15921 : 2011 | Identical |
| UNI EN 15921 : 2011 | Identical |
| ISO 15959:2016 | Fertilizers Determination of extracted phosphorus |
| EN 1482-2:2007 | Fertilizers and liming materials - Sampling and sample preparation - Part 2: Sample preparation |
| CEN/TS 15959:2009 | Fertilizers - Determination of extracted phosphorus |
| EN 15475:2009 | Fertilizers - Determination of ammoniacal nitrogen |
| EN 1482-1:2007 | Fertilizers and liming materials - Sampling and sample preparation - Part 1: Sampling |
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