CEN/TS 16197:2011
Withdrawn
View Superseded by
Fertilizers - Determination of magnesium by atomic absorption spectrometry
06-01-2011
03-11-2023
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Sampling
6 Reagents
7 Apparatus
8 Preparation of the extraction solution
9 Procedure
10 Calculation and expression of the result
11 Precision
12 Test report
Annex A (informative) - Statistical results of
the inter-laboratory test
Bibliography
This Technical Specification specifies a method for the determination of the magnesium content in fertilizer extracts using atomic absorption spectrometry (AAS).This method is applicable to EC fertilizer extracts obtained according to CEN/TS 15960 and CEN/TS 15961, for which a declaration of the total magnesium and/or water soluble magnesium content is required, with the exceptions of the following fertilizers according to [4], Annex I D relating to secondary nutrients:-type 4 (kieserite);-type 5 (magnesium sulfate) and type 5.1 (magnesium sulfate solution);-type 7 (kieserite with potassium sulfate)to which [4], method 8.8, applies.NOTEMethod 8.8 is covered by CEN/TS 16198 (see Bibliography). The method applies to all fertilizer extracts containing elements in quantities that might interfere with the complexometric determination of magnesium.
| Committee |
CEN/TC 260
|
| DocumentType |
Technical Specification
|
| PublisherName |
Comite Europeen de Normalisation
|
| Status |
Withdrawn
|
| SupersededBy |
| Standards | Relationship |
| S.R. CEN/TS 16197:2011 | Identical |
| DD CEN/TS 16197:2011 | Identical |
| XP CEN/TS 16197 : 2011 XP | Identical |
| NEN NPR CEN/TS 16197 : 2011 | Identical |
| DIN CEN/TS 16197;DIN SPEC 91273:2011-08 | Identical |
| DIN SPEC 91273 : 2011 | Identical |
| EN 1482-2:2007 | Fertilizers and liming materials - Sampling and sample preparation - Part 2: Sample preparation |
| CEN/TS 15960:2009 | Fertilizers - Extraction of total calcium, total magnesium, total sodium and total sulfur in the forms of sulfates |
| CEN/TS 16198:2011 | Fertilizers - Determination of magnesium by complexometry |
| 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 |
| CEN/TS 15961:2009 | Fertilizers - Extraction of water soluble calcium, magnesium, sodium and sulfur in the form of sulfates |
| EN 1482-1:2007 | Fertilizers and liming materials - Sampling and sample preparation - Part 1: Sampling |