Proficiency testing (PT): Metals in contaminated soils


Distribution Schedule 2024



Round Registration
deadline
Despatch
samples
Reporting
deadline
Final Report

Round October 2024 27/09/2024 14/10/2024 08/11/2024 25/11/2024
Registration Deadline: 27/09/2024
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Scope of the Interlaboratory Proficiency Testing

The scope of this proficiency testing is the evaluation of the performance of laboratories for the determination of the metals in contaminated soils and similar matrices.

Interlaboratory proficiency testing organized in accordance with the standard ISO/IEC 17043:2010 - Conformity assessment — General requirements for proficiency testing.

Parameters

  • Antimony (Sb)
    (50 - 500 mg/Kg)
  • Arsenic (As)
    (50 - 500 mg/Kg)
  • Beryllium (Be)
    (50 - 500 mg/Kg)
  • Cadmium (Cd)
    (50 - 500 mg/Kg)
  • Chromium (Cr)
    (50 - 500 mg/Kg)
  • Cobalt (Co)
    (50 - 500 mg/Kg)
  • Copper (Cu)
    (50 - 500 mg/Kg)
  • Iron (Fe)
    (10 - 100 g/Kg)
  • Lead (Pb)
    (50 - 500 mg/Kg)
  • Manganese (Mn)
    (100 - 2000 mg/Kg)
  • Mercury (Hg)
    (1 - 35 mg/Kg)
  • Molybdenum (Mo)
    (30 - 300 mg/Kg)
  • Nickel (Ni)
    (50 - 500 mg/Kg)
  • Selenium (Se)
    (50 - 500 mg/Kg)
  • Thallium (Tl)
    (50 - 500 mg/Kg)
  • Tin (Sn)
    (50 - 500 mg/Kg)
  • Vanadium (V)
    (50 - 500 mg/Kg)
  • Zinc (Zn)
    (100 - 1000 mg/Kg)

Proficiency test item:

  • 1 x 20g of contaminated soils ready to use.

ADDITIONAL TEST SAMPLES: For costs and availability of additional test samples contact Qualitycheck (e-mail sales@qualitychecksrl.com)

ANALYSIS

The sample digestion must be used methods for the determination of the “Pseudo total” concentration (ex. ISO 54321:2020, EPA 3051a:2007, EPA 3050b:1996 or other equivalent methods).

For each measurand shall be reported one result.

ADDITIONAL RESULTS: Each participant can submit up to 5 results* for the same analyte, thus obtaining an evaluation of laboratory performance for different operators, instruments and/or test methods (e.g. operator 1/operator 2, instrument A/instrument B, etc..).


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    *: Only one result submitted by the laboratory will be included in the statistical treatment of data for the calculation of the Assigned Value and statistics of data of the analyte, to avoid that a single laboratory has a different statistical weight, depending on the number of its submitted results. The additional results are evaluated by assigning z-score values, using the Assigned Value and the Standard Deviation for Proficiency Assessment obtained from statistical treatment.

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