CEN/TS 15476:2006
Withdrawn
View Superseded by
Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda
09-27-2006
03-08-2023
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus
7 Sampling and sample preparation
8 Procedure
9 Calculation and expression of the result
10 Precision
11 Test report
Annex A (informative) Results of the inter-laboratory tests
Bibliography
This Technical Specification specifies a method for the determination of nitrate and ammoniacal nitrogen with reduction using Devarda alloy (modified for each of the variants a, b and c).The method is applicable to all nitrogenous fertilizers, including compound fertilizers, in which nitrogen is found exclusively in nitrate form or in ammoniacal and nitrate form.
| Committee |
CEN/TC 260
|
| DocumentType |
Technical Specification
|
| PublisherName |
Comite Europeen de Normalisation
|
| Status |
Withdrawn
|
| SupersededBy |
| Standards | Relationship |
| DD CEN/TS 15476:2006 | Identical |
| NEN NPR CEN/TS 15476 : 2006 | Identical |
| I.S. CEN TS 15476:2006 | Identical |
| DIN CEN/TS 15476:2006-12 | Identical |
| UNE-CEN/TS 15476:2007 EX | Identical |
| ISO 5725-1:1994 | Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions |
| EN ISO 3696:1995 | Water for analytical laboratory use - Specification and test methods (ISO 3696:1987) |