Proficiency testing (PT): Metals in natural waters


Distribution Schedule 2021



Round Registration
deadline
Despatch
samples
Reporting
deadline
Final Report

March 2021 12/02/2021 01/03/2021 26/03/2021 12/04/2021
Deadline reporting results: 26/03/2021

October 2021 24/09/2021 11/10/2021 05/11/2021 22/11/2021
Registration deadline: 24/09/2021
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Interlaboratory proficiency testing organized in accordance with the standard ISO/IEC 17043:2010 - Conformity assessment — General requirements for proficiency testing.


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 natural waters (ex. drinking water, mineral water, groundwater, etc.).

Parameters

  • Aluminum (Al)
    (50 - 500 microg/L)
  • Antimony (Sb)
    (1 - 50 microg/L)
  • Arsenic (As)
    (5 - 50 microg/L)
  • Barium (Ba)
    (500 - 3000 microg/L)
  • Beryllium (Be)
    (2 - 20 microg/L)
  • Boron (B)
    (100 - 2000 microg/L)
  • Cadmium (Cd)
    (1 - 20 microg/L)
  • Chromium (Cr)
    (10 - 200 microg/L)
  • Chromium VI (Cr VI)
    (1 - 50 microg/L)
    New 2021!
  • Cobalt (Co)
    (5 - 50 microg/L)
  • Copper (Cu)
    (50 - 2000 microg/L)
  • Iron (Fe)
    (50 - 1000 microg/L)
  • Lead (Pb)
    (1 - 100 microg/L)
  • Manganese (Mn)
    (10 - 100 microg/L)
  • Mercury (Hg)
    (0.5 - 10 microg/L)
  • Molybdenum (Mo)
    (15 - 150 microg/L)

  • Nickel (Ni)
    (5 - 100 microg/L)
  • Selenium (Se)
    (5 - 50 microg/L)
  • Silver (Ag)
    (1 - 100 microg/L)
  • Thallium (Tl)
    (1 - 10 microg/L)
  • Tin (Sn)
    (10 - 100 microg/L)
  • Vanadium (V)
    (10 - 200 microg/L)
  • Zinc (Zn)
    (50 - 1000 microg/L)

Proficiency test item:

  • 1 x 500 mL of the test material stabilized with 2% (v/v) nitric acid ready to use for the determination of all metals except Cr VI.
  • 1 x 1000 mL of the test material to be prepared from a matrix and a vial of the spiking solution for the determination of Cr VI.

NOTE: All the details for the preparation of the final test sample are included in the Guide Lines of the interlaboratory proficiency testing provided with the test smples.

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


ANALYSIS

The test sample should be analysed under the same conditions and with the same procedures used for the routine samples in the laboratory including the quality control procedures.

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..).

  • Request a quote

    Download and complete the Application Form, selecting for each matrix, the measurands and the period in which you want to participate. Send it by email (sales@qualitychecksrl.com) or by FAX (0039 0656562874).

    REQUEST A QUOTE 2021 (PDF)

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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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