CEN/TS 16318:2012
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
View Superseded by
Fertilizers - Determination of trace elements - Determination of chromium(VI) by photometry (method A) and by ion chromatography with spectrophotometric detection (method B)
11-03-2023
18-04-2012
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Sampling and sample preparation
5 Method A: Determination by water extraction
and spectrophotometric detection
6 Method B: Determination by alkaline
digestion and ion chromatography with
spectrophotometric detection
7 Precision
8 Test report
Bibliography
This Technical Specification specifies two methods for the determination of the content of soluble chromate in fertilisers. Method A specifies the determination of chromate after extraction with water by photometry. This method can be used to determine Cr(VI)-mass fractions in solids higher than 1 mg/kg.Method B specifies the determination of chromate by alkaline digestion and ion chromatography with spectrophotometric detection. This method can be used to determine Cr(VI)-mass fractions in solids higher than 0,1 mg/kg.NOTEIn case of reducing or oxidising fertiliser matrix, no valid Cr(VI) content can be reported.
| Committee |
CEN/TC 260
|
| DocumentType |
Technical Specification
|
| PublisherName |
Comite Europeen de Normalisation
|
| Status |
Withdrawn
|
| SupersededBy |
| Standards | Relationship |
| DIN SPEC 10788 : 2012 | Identical |
| DIN CEN/TS 16318;DIN SPEC 10788:2012-06 | Identical |
| XP CEN/TS 16318 : 2012 XP | Identical |
| UNI CEN/TS 16318 : 2012 | Identical |
| PD CEN/TS 16318:2012 | Identical |
| S.R. CEN/TS 16318:2012 | Identical |
| PNE-FprCEN/TS 16318 | Identical |
| ISO 5725-1:1994 | Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions |
| EN 1482-2:2007 | Fertilizers and liming materials - Sampling and sample preparation - Part 2: Sample preparation |
| EN 15192:2006 | Characterisation of waste and soil - Determination of Chromium(VI) in solid material by alkaline digestion and ion chromatography with spectrophotometric detection |
| 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 |
| ISO 3696:1987 | Water for analytical laboratory use — Specification and test methods |
| 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 |
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