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    BS ISO 15192 - SOIL QUALITY - DETERMINATION OF CHROMIUM(6) IN SOLID MATERIAL BY ALKALINE DIGESTION AND ION CHROMATOGRAPHY WITH SPECTROPHOTOMETRIC DETECTION

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date: 

    Publisher:  British Standards Institution

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    Table of Contents - (Show below) - (Hide below)

    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

    General Product Information - (Show below) - (Hide below)

    Comment Closes On
    Committee EH/4
    Document Type Draft
    Publisher British Standards Institution
    Status Current

    Standards Referencing This Book - (Show below) - (Hide below)

    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 6 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 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 (6), CU, MO, NI, NO[2][-], PB, TOTAL S, SO[4][2-], 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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