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Metals in Soil - PT

Proficiency Testing Material


Quality Level


pkg of 1 × 30 g






matrix material

General description

Metals in Soil - PT proficiency testing material is produced in accordance with ISO/IEC 17043:2010. This product is produced according to TNI requirements. However, please note, this sample may include non-TNI analytes as well. The PT portfolio allows our test components to offer significant performance data to monitor and prove competency to customers, accreditation bodies or both.

Supelco® is a global proficiency testing (PT) provider that manufactures best-in-class environmental and pharmaceutical PT products. We are the world leader in the manufacturing of real-world soil, sediment and sewage sludge PT products.

Type of PT Scheme:
Solids/Soils Hazardous Waste

Matrix: Soil

Analyte/s: Values of analytes vary lot to lot.

All information regarding the use of Metals in Soil - PT proficiency testing standard can be found in the reporting packet which will be available to download at PT Portal.


Metals in Soil - PT is a soils/hazardous waste (soil/HW metals) proficiency testing material, suitable for testing metals in soil samples.

Our soil PT samples behave as real samples; and, unless there is no alternative, are not simply spikes added to a blank soil. They are designed to meet the requirements of national, regional and state-specific accreditation bodies (TNI, USEPA, UKAS) for quality assurance and continuous improvement.

Have any questions? Explore our FAQs
For more information on this product, please contact our PT Service Team

Features and Benefits

We have a vast portfolio of environmental PT schemes with "fit-for-purpose" samples to help you meet the needs of the laboratory.

Our proficiency testing (PT) program is a benchmark to:

  • provide staff with an insight into their laboratory′s performance, to verify the accuracy and reliability of their testing process
  • provide a comparison of performance with that of other laboratories, nationally and internationally
  • test and educate staff, provide a better understanding of the impact of incorrect results and identify areas where there may be problems
  • provide an independent evaluation of laboratory performance
  • demonstrate to clients, colleagues and accreditation bodies that there is a commitment to quality

Preparation Note


  • This PT soil  sample contains 26 TNI metals plus several other metals listed on the report form.
  • A total sample size of 30 g is provided.
  • The PT sample has been heat sterilized.
  • The evaluation of results will be based on study statistics for equivalent methods.
  • This sample should be digested using USEPA method 3050, 3051 or equivalent methods.
  • After the sample is opened it should be used within 6 months or within the expiration date whichever is sooner.

Sample Preparation
  • Perform the sample digestion on an appropriate amount of sample according to the selected digestion procedure. The recommended minimum sampling size is 0.5 g.
  • Determination of the percent moisture content of the material is required.
  • Report all results on a dry weight basis.
  • It is recommended that approximately 1 g of the soil be digested.
  • Determine the metals present. It is not necessary to report all metals; only report the metals of interest.
  • You may report as many methods as required by reporting online.

Storage and Stability

Please refer to sample label for expiration date, specific storage temperature, and specific storage conditions.

Other Notes

Are you new to Supelco® Proficiency Testing? Be sure to register your account details in the PT Portal before placing your order.
This will provide access to data entry, reporting packets and final reports. Registrations will be approved shortly after your order is placed. For further questions, write to us at

When placing your order online, please indicate your study preference under the ′your reference′ column. Available studies can be viewed at the bottom of the page.
Click here to learn more about Quick-Turn Studies (on-demand proficiency tests that are offered depending on lot availability). The Quick-Turn results are released within 48-72 hours whereas scheduled study reports are released within 21 days.

Proficiency testing samples are presented as single blind. No values for the samples are released until the testing period concludes.

Proficiency Testing Schedule (2022-2023)

LPTP22-S1 January 26 - March 11, 2022
LPTP22-S2 April 6 - May 20, 2022
LPTP22-S3 July 20 - September 4, 2022
LPTP22-S4 October 5 - November 18, 2022

LPTP23-S1 January 25 – March 10, 2023
LPTP23-S2 April 5 – May 19, 2023
LPTP23-S3 July 19 – September 1, 2023
LPTP23-S4 October 4 – November 17, 2023

Quick-Turn Study (on demand proficiency test that is offereddepending on lot availability)

Legal Information

Supelco is a registered trademark of Merck KGaA, Darmstadt, Germany



    Aluminum, Al 2500-25000 mg/kg
    Antimony, Sb 80-300 mg/kg
    Arsenic, As 40-400 mg/kg
    Barium, Ba 100-1000 mg/kg
    Beryllium, Be 40-400 mg/kg
    Boron, B 80-800 mg/kg
    Cadmium, Cd 40-400 mg/kg
    Calcium, Ca 1500-25000 mg/kg
    Chromium, Cr (total) 40-400 mg/kg
    Cobalt, Co 40-400 mg/kg
    Copper, Cu 40-400 mg/kg
    Iron, Fe 5,000 - 50,000mg/kg
    Lead, Pb 40-400 mg/kg
    Lithium, Li 50-250 mg/kg
    Magnesium, Mg 1200-25000 mg/kg
    Manganese, Mn 100-2000 mg/kg
    Mercury, Hg 1-35 mg/kg
    Molybdenum, Mo 30-300 mg/kg
    Nickel, Ni 40-500 mg/kg
    Potassium, K 1400-25000 mg/kg
    Selenium, Se 40-400 mg/kg
    Silver, Ag 20-100 mg/kg
    Sodium, Na 150-15000 mg/kg
    Strontium, Sr 40-400 mg/kg
    Thallium, Tl 40-400 mg/kg
    Tin, Sn 50-250 mg/kg
    Titanium, Ti 20-500 mg/kg
    Vanadium, V 40-400 mg/kg
    Zinc, Zn 100-1000 mg/kg
    See All (29)


Exclamation markHealth hazard

Signal Word


Hazard Statements

Hazard Classifications

Aquatic Chronic 3 - Carc. 1B - Skin Sens. 1

Storage Class Code

6.1D - Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

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