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TPH in Water (high level)

Proficiency Testing Material

Total petroleum hydrocarbons (TPH)

Quality Level


ampule of 2 × 1.2 mL


in pentane




matrix material

storage temp.


General description

TPH in Water (high level) proficiency testing material is produced in accordance with ISO/IEC 17043:2010. This product is also referred to as non-Potable water or Water Pollution sample. Our 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, 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 TPH in Water (high level) proficiency testing standard can be found in the reporting packet which will be available to download at PT Portal.


TPH in Water (high level) as a proficiency testing material is used to test total petroleum hydrocarbons in wastewater samples.

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 vial contains a concentrate of a blended gasoline from three different sources and diesel fuel oil No. 2 in pentane for analysis by TNRCC Method 1005.
  • When prepared according to instructions, the concentration of each analyte will be less than 100 mg/L.
  • The pack-size on this sample has recently changed from 2 mL to 1.2 mL. This change does not affect the performance of the proficiency test.

Sample Preparation

  • To prepare the solution, fill a 40 mL VOA vial to volume with carbon-filtered reagent-grade water at room temperature.
  • Remove enough water to allow for the addition of extraction solvent.
  • Open vial PE1619-1.2ML and immediately withdraw 40 μL with a gas-tight syringe.
  • Quickly inject the 40 μL aliquot below the surface of the reagent water in the VOA vial.
  • Add the extraction fluid.
  • Mix the sample by inverting the flask three times only (excessive shaking results in loss of volatiles) and analyze immediately.
  • Assume a 40 mL sample for calculation purposes. Note this is a 1:1000 dilution and other dilutions are acceptable.

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 unti the testing period concludes.

Proficiency Testing Schedule (2021-2022)

WP21-2March 24 - May 7, 2021
WP21-4September 22 - November 5, 2021

WP22-2March 23 - May 6, 2022
WP22-4September 21 - November 4, 2022

Legal Information

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



    Residual Range Organics (RRO),>C28-C35 1-100 mg/L
    Total Petroleum Hydrocarbons (TPH), (C6-C35 20-300 mg/L
    Diesel-range total petroleum hydrocarbons, >C12-C28 1-100 mg/L
    Gasoline Range Organics, C6-C12 1-100 mg/L

Signal Word


Hazard Classifications

Aquatic Chronic 2 - Asp. Tox. 1 - Carc. 1B - Flam. Liq. 1 - Muta. 1B - STOT SE 3

Target Organs

Central nervous system

Supplementary Hazards

Storage Class Code

3 - Flammable liquids



Flash Point(F)

-56.2 °F - closed cup - Solvent

Flash Point(C)

-49 °C - closed cup - Solvent

Regulatory Information


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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