PREN 13368-2 : DRAFT 2016
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
FERTILIZERS - DETERMINATION OF CHELATING AGENTS IN FERTILIZERS BY CHROMATOGRAPHY - PART 2: DETERMINATION OF FE CHELATED BY [O,O] EDDHA, [O,O] EDDHMA AND HBED, OR THE AMOUNT OF CHELATING AGENTS, BY ION PAIR CHROMATOGRAPHY
12-01-2013
01-11-2017
European foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Interferences
6 Reagents
7 Apparatus
8 Sampling and sample preparation
9 Procedure
10 Expression of the results (Fe in Fe-chelates)
11 Precision
12 Test report
Annex A (informative) - Statistical results of the
inter-laboratory tests
Annex B (informative) - General procedure for the
determination of the titrimetric purity of
the chelating agents using a photometric automatic titrator
Annex C (informative) - Complete names of chelating agents
Bibliography
Describes a method for the chromatographic determination of the iron chelated by each individual ortho(hydroxy)-ortho(hydroxy) isomer of the chelating agents [o,o] EDDHA, [o,o] EDDHMA and by HBED in fertilizers containing one or more of these substances, except for [o,o] EDDHMA and HBED mixes.
| Committee |
TC 260
|
| DocumentType |
Draft
|
| PublisherName |
Comite Europeen de Normalisation
|
| Status |
Superseded
|
| Standards | Relationship |
| 16/30340656 DC : 0 | Identical |
| 05/30136174 DC : DRAFT JULY 2005 | Identical |
| 11/30238479 DC : 0 | Identical |
| CEN/TR 15106:2005 | Fertilizers - Determination of chelating agents EDDHA and EDDHMA by ion pair chromatography - Comparison of non-standardized Lucena method with EN 13368-2:2001 |
| EN 1482-2:2007 | Fertilizers and liming materials - Sampling and sample preparation - Part 2: Sample preparation |
| ISO 5725-2:1994 | 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 |
| EN ISO 3696:1995 | Water for analytical laboratory use - Specification and test methods (ISO 3696:1987) |
| EN 1482-1:2007 | Fertilizers and liming materials - Sampling and sample preparation - Part 1: Sampling |