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Trace Metals 1 - WP

Proficiency Testing Material, Concentrate for dilution to 1L

NPW - Trace Metals 1, WP - Trace Metals 1, DMRQA - Trace Metals 1

Quality Level


ampule of 2 × 20 mL


in nitric acid




matrix material

General description

Trace Metals 1 - WP proficiency testing material is produced in accordance with ISO/IEC 17043:2010. Also referred to as non-Potable water or Water Pollution sample, this product is produced according to TNI requirements. However, please note, this sample may include non-TNI analytes as well. The higher criteria from the TNI tables mimic the levels common to wastewater samples. 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. Most water PT samples are available as concentrates or ready-to-use volumes giving the end-user flexibility in selecting samples that will fit their exact needs. Our WP program is designed to meet the quality assurance requirements in compliance with Discharge Monitoring Report - Quality Assurance Program (DMR-QA), thereby ensuring the analytical competence of your laboratory.
These samples are typically provided in duplicate for use in case of lab mishap, for QC purposes or to analyze multiple methods.

Type of PT Scheme: Water analysis - Water Pollution (WP)

Matrix: Water Pollution/Wastewater

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

All information regarding the use of Trace Metals 1 - WP can be found in the reporting packet which will be available to download at PT Portal.


Trace Metals 1 - WP is a non-potable water (NPW) PT standard, suitable to test trace metals in water pollution/wastewater.

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


20 mL

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 sample is packaged as a 20 mL concentrate.
  • The solvent for this sample is 5% nitric acid by volume in DI water.
  • The PT sample has not been preserved.

Sample Preparation

  • To prepare the solution, partially fill a 1000 mL volumetric flask with reagent-grade water (near 20 ºC) and add 1 mL of trace-metal-grade nitric acid.
  • Open ampule PE1132-20ML (be careful to avoid cuts on glass) and transfer 10.0 mL of concentrate to the volumetric flask.
  • Fill the flask to volume with reagent-grade water and mix well.
  • The sample is now ready for immediate digestion and analysis, as per laboratory SOPs.
  • A reagent-grade blank should be analyzed concurrently for background correction.
  • The water blank should be made to match the acid matrix of the standards and samples.
  • Each analyte is reported in μg/L.

NOTE: The 0.15% v/v nitric acid specification is a minimum; the amount and type of acid may be altered to routine analytical procedures if needed.
NOTE: Mercury can be present as both inorganic and organic mercury.

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)

WP22-1 January 12 – February 25, 2022
WP22-2 March 23 - May 6, 2022
WP22-3 July 6 - August 19, 2022
WP22-4 September 21 - November 4, 2022

WP23-1 January 11 – February 24, 2023
WP23-2 March22 – May 5, 2023
WP23-3 July 5 – August 18, 2023
WP23-4 September 20 – November 3, 2023

DMR-QA (US customers only)
DMR-QA 43 2023 Dates TBD

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



    Arsenic 90-900 μg/L
    Beryllium 50-500 μg/L
    Cadmium 100-1000 μg/L
    Chromium, Cr (total) 100-1000 μg/L
    Cobalt 100-1000 μg/L
    Copper 100-1000 μg/L
    Iron 200-4000 μg/L
    Lead 100-1500 μg/L
    Lithium .001-4000 μg/L
    Manganese 200-2000 μg/L
    Mercury 3-30 μg/L
    Nickel 200-2000 μg/L
    Selenium 100-1000 μg/L
    Vanadium 50-2000 μg/L
    Zinc 300-2000 μg/L
    Titanium 60-300 μg/L
    See All (16)

Signal Word


Hazard Classifications

Aquatic Chronic 3 - Carc. 1B - Eye Dam. 1 - Met. Corr. 1 - Skin Irrit. 2 - 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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