Our Progetto Trieste line – Proficiency Testing for Pesticide Residues is constantly evolving to try to meet the interests of our participants.
In 2025 we will introduce four new matrices for pesticides research: infant formula (milk powder), wheat flour, red wine and dried lentils!
Come and find out the entire Progetto Trieste proposal for PTs for Pesticide Residue research – Round of March and October 2025.

In general, our Pesticide Residue Proficiency Tests have a conspicuous list of molecules under study. Of these, a minimum number of molecules will be present. The presence of some of these molecules will be declared and guaranteed. The molecules declared are often derived from the input we receive from our customers and the molecules most sought after by laboratories.
PT for Pesticides, chlorates and perchlorates in infant formula milk powder (MI4806)
Round of March
- Deadline for online orders: January 31st 2025
- Shipping date: March 10th 2025
- Test Material: infant formula milk powder, 45g x 1 Test Material, spiked. In case more material is needed, additional materials can be purchased at a reduced cost.
- Molecoles under study: sodium chloride, potassium perchloride, pirimicarb, indoxacarb, aldrin, dieldrin, profenfos, clordane cis, lambda cialotrin. Sodium chlorade, potassium perchloride and at least 5 pesticides will be present.
- Indicative concentrations: < 200ppb
- Price for participation: 304,00€
PT for Pesticides + glyphosate + AMPA in lettuce (VF5800)
Round of October
- Deadline for online orders: September 5th 2025
- Shipping date: October 20th 2025
- Test Material: lettuce, 60g x 1 Test Material, spiked
- More than 260 molecules under study. Presence is guaranteed for at least 7 of these, Glyphosate and AMPA present in VF5800 and VF4800/G.
- This PT is also available as partial participations:
- VF5800/P Pesticides (excluding glyphosate and AMPA). Price: 265,00€
- VF5800/G only for glyphosate and AMPA. Price: 285,00€
- Indicative concentrations: < 300ppb
- Price for total participation: 304,00€
PT for Pesticides, glyphosate included, in wheat flour (WH5801)
Round of October
- Deadline for online orders: September 5th 2025
- Shipping date: October 20th 2025
- Test Material: wheat flour, 80g x 1 Test Material, spiked
- Molecoles under study: Chlormequat (sum of chlormequat and its salts; expressed as chlormequat chloride), Mepiquat (sum of mepiquat and its salts; expressed as mepiquat chloride), Glyphosate, AMPA. All molecules under study will be present.
- Indicative concentrations: < 600ppb
- Price is only 304,00€
PT for Pesticides in red wine (W5802)
Round of October
- Deadline for online orders: September 5th 2025
- Shipping date: October 20th 2025
- Test Material: red wine, 70ml x 1 Test Material, spiked
- Large number of molecules under study: presence is guaranteed for at least 5 of these.
- Indicative concentrations: < 300ppb
- Price is only 304,00€
PT for Pesticides, glyphosate included, in light honey (H5803)
Round of October
- Deadline for online orders: September 5th 2025
- Shipping date: October 20th 2025
- Test Material: honey, 70g x 1 Test Material, spiked
- Large number of molecules under study: presence is guaranteed for at least 6 of these.
- Indicative concentrations: < 300ppb
- Price is only 304,00€
PT for Pesticides in swine fat (M5804)
Round of October
- Deadline for online orders: September 5th 2025
- Shipping date: October 20th 2025
- Test Material: swine fat, 50g x 1 Test Material, spiked
- Large number of molecules under study: presence is guaranteed for at least 5 of these.
- Indicative concentrations: < 300ppb
- Price is only 304,00€
PT for Pesticides in dried lentils (LE5805)
Round of October
- Deadline for online orders: September 5th 2025
- Shipping date: October 20th 2025
- Test Material: dried lentils, 80g x 1 Test Material, spiked
- More than 260 molecules under study. Presence is guaranteed for at least 6 of these, the presence of Glyphosate is guaranteed in codes LE5805 and LE5805/G.
- This PT is also available as partial participations:
- LE5805/P Pesticides (excluding glyphosate). Price: 275,00€
- LE5808/G only for glyphosate. Price: 275,00€
- Indicative concentrations: < 300ppb
- Price for total participation: 285,00€
SAVE ON SHIPPING COSTS! PTs of Progetto Trieste – Pesticide Residues are scheduled for the Round of March and October 2025. In the same rounds you will also find PTs from other lines such as Progetto Trieste – Metals, Progetto Trieste – Mycotoxins, Progetto Trieste – Veterinary Drug Residues and ProgettoTrieste – Additives. Order as many PTs as you want from those that are shipped the same day, the shipping costs do not change!
Also during the October Round, the new PT for Biocides in lettuce is also scheduled, find out all the details in our dedicated news!
PT for the research of Biocides in lettuce (VF5806)
Round of October
- Deadline for online orders: September 5th 2025
- Shipping date: October 20th 2025
- Test Material: lettuce, 60g x 1 Test Material, spiked. In case more material is needed, additional materials can be purchased at a reduced cost.
- Molecules under study: BAC10, BAC12, BAC14, BAC16, DDAC. All molecules under study will be present.
- Indicative concentrations: < 300ppb
OUR POINTS of STRENGHT for these PT
- In general, our Pesticide Residue Proficiency Tests have a conspicuous list of molecules under study. Of these, a minimum number of molecules will be present. The presence of some of these molecules will be declared and guaranteed. Check our programme to find out the molecules declared as present, it will be updated soon!
- With us, the convenience doubles! For all Progetto Trieste PTs, you can submit 2 sets of results: with a single subscription you will receive the evaluation of 2 laboratory technicians or 2 analytical methods directly in the Final Report.
- Even more reliable assigned value due to the high stability of our Test Materials, which are mostly supplied as lyophilized (to be analyzed after reconstitution) so as to ensure their stability even over long transports. In this way, each participant, regardless of his or her country of origin, will be assured that he/she will receive the sample in exactly the same condition as the other participants. After reconstitution it will be like a sample from your routine.
- Blank materials available! For all proposed PTs there is an option to purchase blank material (test material before spiking).
If you want to see more details about these or other PTs, such as the schedule, prices… go to this page to download the entire programme.
Here you can find information on HOW TO ORDER.
For any further information, do not hesitate to contact us at info@testveritas.com.
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