In an increasingly regulated analytical landscape, laboratories often face a paradox: the need to demonstrate competence in matrix/analyte combinations imposed by regulations, but the difficulty in finding specific Proficiency Testing on the market for these rare analyses
Test Veritas, with its Progetto Trieste 2026 program, responds to this challenge, reaffirming its role as a specialist in organizing niche PTs, often unobtainable elsewhere, designed to support laboratories seeking to evaluate their performance in critical analytical contexts.
Meeting the Needs of the Rarest Analytical Challenges
The Progetto Trieste 2026 catalogue is enriched with PTs aimed at satisfying the most specific regulatory demands in complex and delicate matrices and for particular contaminants. These PTs offer laboratories the opportunity to verify their methods with confidence on uncommon combinations in the pursuit of excellence.
1. Veterinary Drug Residues

PT for MACROLIDES & LINCOSAMIDES in BOVINE MUSCLE
(code M6105) – ROUND of MARCH 2026
Molecules under study: erythromycin, josamycin, lincomycin, oleandamycin, rifampicin, spiramycin, tilmicosin, tylosin A, tylosin B, total tylosin, virginiamycin, pirlimycin.
THE PRESENCE OF LINCOMYCIN IS GUARANTEED!

PT for ANTHELMINTICS in BOVINE LIVER
(code L6207) – ROUND of APRIL 2026
Families under study: Avermectine, Benzoimidazoli, Salicilanilidi, Imidazoli
The complete list of molecules under study can be found in the commercial program (page 7)
THE PRESENCE OF LEVAMISOLE AND AT LEAST 1 AVERMECTIN IS GUARANTEED!

PT for NITROFURAN METABOLITES in SWINE MUSCLE
(code M6103) – ROUND of MARCH 2026
Molecules under study: AOZ, AMOZ, SEM, AHD, DNSH
ALL THE MOLECULES WILL BE PRESENT!

PT for SULPHONAMIDES in LIVER
(code L6303) – ROUND of MAY 2026
Molecules under study: sulfadiazine, sulfadimethoxine, sulfadoxine, sulfaguanidine, sulfamerazine, sulfamethazine, sulfamethizole, sulfamethoxazole, sulfamethoxypyridazine, sulfamonomethoxine, sulfaquinoxalin, sulfathiazole

PT for NITROFURAN METABOLITES in SHRIMPS
(code SF6104) – ROUND of SEPTEMBER 2026
Molecules under study: AOZ, AMOZ, SEM, AHD, DNSH
3 MOLECULES WILL BE PRESENT. THE PRESENCE OF DNSH IS GUARANTEED.

PT for NITROIMIDAZOLES in BOVINE MILK
(code MI6305) – ROUND of MAY 2026
Molecules under study: dimetridazole, metronidazole, ipronidazole, ronidazole, 2-Hydroxy Dimetridazole (HMMNI), 2-Hydroxy Metronidazole, 2-Hydroxy Ipronidazole

PT for NITROIMIDAZOLES in BOVINE SERUM
(code SE6306) – ROUND of MAY 2026
Molecules under study: dimetridazole, metronidazole, ipronidazole, ronidazole, 2-Hydroxy Dimetridazole (HMMNI), 2-Hydroxy Metronidazole, 2-Hydroxy Ipronidazole

PT for NATURAL HORMONES in BOVINE SERUM
(code SE6308) – ROUND of MAY 2026
Molecules under study: progesterone, testosterone, 17b-estradiol
2. Metals

PT for METALS in EGGS
(code E6909) – ROUND of OCTOBER 2026
Molecules under study: mercury, lead, cadmium, arsenic.
ALL THE MOLECULES WILL BE PRESENT!
3. Pesticide Residues

PT for NEOCOTINOID PESTICIDES in PISTACHIO (SLURRY)
(code N6804) – ROUND of OCTOBER 2026
Molecules under study: Thiametoxam, imidacloprid, clotiadin, acetamiprid.

PT for PESTICIDES in EGGS
(code E6802) – ROUND of OCTOBER 2026
More than 60 molecules under study: the complete list of molecules under study can be found in the commercial program (page 28).
AT LEAST 6 MOLECULES WILL BE PRESENT.
4. Freshness parameters

PT for BIOGENIC AMINES in TUNA
(cod. T6401) – ROUND of SEPTEMBER 2026
Molecules under study: cadaverine, putrescine, spermidine, spermine, tyramine
5. Additives

PT for SULPHITES in FRANKFURTERS
(code M6911) – ROUND of OCTOBER 2026
Molecules under study: Sulphites SO2

PT for NATAMYCIN in HARD CHEESE (not slurry)
(code CE6701N) – ROUND of OCTOBER 2026
Molecules under study: Natamycin (pimaricin)
Flexibility: The PT You Can’t Find, We Create for You
Our philosophy is based on flexibility: our annual proposals are continually customized according to our clients’ needs.
Test Veritas is always attentive to the requests and needs of laboratories: can’t find the right PT for you? Ask us!
Our Research and Development (R&D) team will carry out preliminary feasibility studies to create a tailor-made PT. Should the studies yield positive results and receive a good response from the market, we may add it to our program, turning your need into an opportunity for the entire analytical community.
Contact us today to discuss your specific analytical needs and discover the complete Progetto Trieste 2026 catalogue.
We invite you to consult the full Progetto Trieste 2026 catalogue to discover our complete offering and scheduled shipping dates.
We are at disposal for any frther information at info@testveritas.com.
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