09/30179897 DC : 0
Current
The latest, up-to-date edition.
BS ISO 15192 - SOIL QUALITY - DETERMINATION OF CHROMIUM(6) IN SOLID MATERIAL BY ALKALINE DIGESTION AND ION CHROMATOGRAPHY WITH SPECTROPHOTOMETRIC DETECTION
Hardcopy , PDF
English
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and Definitions
4 Safety remarks
5 Principle
5.1 Digestion
5.2 Determination
5.3 Interferences and sources of error
6 Apparatus
6.1 Digestion equipment
6.2 Filtration equipment,
6.3 Membrane filters,
6.4 Ion chromatographic system,
6.5 Ion chromatographic column,
6.6 Detection system
7 Reagents
7.1 Water
7.2 Sulfuric acid (H[2]SO[4]), concentrated,
rho(H[2]SO[4]) sim 1,84 g/ml, w(H[2]SO[4]) sim 98%
7.3 Sodium carbonate (Na[2]CO[3]), anhydrous,
w(Na[2]CO[3]) > 99,9%
7.4 1,5-Diphenylcarbazide ((C[6]H[5].NH.NH)[2]CO),
w((C[6]H[5].NH.NH)[2]CO) > 98%
7.5 Acetone (C[3]H[6]O)
7.6 Methanol (CH[4]O)
7.7 Potassium dichromate (K[2]C[r2]O[7]),
w(K[2]Cr[2]O[7]) > 99,9%
7.8 Sodium hydroxide (NaOH), w(NaOH) > 99%
7.9 Magnesium chloride hexahydrate (MgCl[2].6H[2]O),
w(MgCl[2].6H[2]O) > 99%
7.10 Dipotassium hydrogenphosphate (K[2]HPO4),
w(K[2]HPO[4]) > 99%
7.11 Potassium dihydrogenphosphate (KH[2]PO[4]),
w(KH[2]PO[4]) > 99%
7.12 Lead chromate (PbCrO[4]), w(PbCrO[4]) > 99%
7.13 Diphenylcarbazide reagent solution
7.14 Eluent solution
7.15 Alkaline digestion solution, 0,5 mol/l sodium
hydroxide (NaOH)/0,28 mol/l sodium carbonate
(Na[2]CO[3])
7.16 Calibration solutions of Cr(VI)
7.17 Phosphate buffer solution,
7.18 Magnesium chloride solution
7.19 Chromium chloride hexahydrate (CrCl[3].6H[2]O),
w(CrCl[3].6H[2]O) > 96%
7.20 Cr(III) spiking solution
8 Sample pretreatment
9 Alkaline digestion procedure
9.1 General
9.2 Preparation of test solutions using a hotplate
or heating block
10 Analytical procedure
10.1 General information
10.2 Instrumental set-up
10.3 Calibration
10.4 Test solution measurement
10.5 Quality Control
11 Calculation
12 Expression of results
13 Test report
Annex A (informative) - Alternative methods for direct
determination of Cr(VI) in the alkaline
digestion solution
Annex B (informative) - Ion chromatographic system
Annex C (informative) - Requirements for test portion preparation
Annex D (informative) - Background on methods for the
determination of Cr(VI) in solid samples
D.1 Summary of literature methods for Cr (VI)
determinations in solids [6]
D.2 Theoretical kinetic background for Cr(III)-Cr(VI)
inter-conversions [6]
D.3 Special needs for Cr(VI) determination in soil
extracts [7]
D.4 Determination of Cr(VI) in glass
D.5 Determination of Cr(VI) in air particulate matter
Annex E (informative) - Validation
Bibliography
| Committee |
EH/4
|
| DocumentType |
Draft
|
| Pages |
31
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| ISO/IEC 17025:2005 | General requirements for the competence of testing and calibration laboratories |
| EN ISO 11885:2009 | Water quality - Determination of selected elements by inductively coupled plasma optical emission spectrometry (ICP-OES) (ISO 11885:2007) |
| CEN/TR 14589:2003 | Characterization of waste - State of the art document - Chromium VI specification in solid matrices |
| ISO 11083:1994 | Water quality — Determination of chromium(VI) — Spectrometric method using 1,5-diphenylcarbazide |
| EN ISO 15586:2003 | Water quality - Determination of trace elements using atomic absorption spectrometry with graphite furnace (ISO 15586:2003) |
| ISO 11464:2006 | Soil quality — Pretreatment of samples for physico-chemical analysis |
| ISO 10304-3:1997 | Water quality — Determination of dissolved anions by liquid chromatography of ions — Part 3: Determination of chromate, iodide, sulfite, thiocyanate and thiosulfate |
| EN 14346:2006 | Characterization of waste - Calculation of dry matter by determination of dry residue or water content |
| ISO 11885:2007 | Water quality — Determination of selected elements by inductively coupled plasma optical emission spectrometry (ICP-OES) |
| ISO 16740:2005 | Workplace air — Determination of hexavalent chromium in airborne particulate matter — Method by ion chromatography and spectrophotometric measurement using diphenyl carbazide |
| ISO 15586:2003 | Water quality — Determination of trace elements using atomic absorption spectrometry with graphite furnace |
| 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 15002:2015 | Characterization of waste - Preparation of test portions from the laboratory sample |
| EN 12506:2003 | Characterization of waste - Analysis of eluates - Determination of pH, As, Ba, Cd, Cl-, Co, Cr, Cr Vl, Cu, Mo, Ni, NO2-, Pb, total S, SO42-, V and Zn |
| ISO 17294-2:2016 | Water quality — Application of inductively coupled plasma mass spectrometry (ICP-MS) — Part 2: Determination of selected elements including uranium isotopes |
| EN ISO 17294-2:2016 | Water quality - Application of inductively coupled plasma mass spectrometry (ICP-MS) - Part 2: Determination of selected elements including uranium isotopes (ISO 17294-2:2016) |
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