AXIO | Proficiency Testing schemes 2026
Rounds per Year
Sample Code Matrix
Analytes
PT-AQ-30
Clean water
Gross Alpha as 239Plutonium; Gross Alpha as 241Americium; Gross Alpha as 230Thorium; Gross Beta as 40Potassium; Gross Beta as 137Caesium; Gross Beta as 90Strontium 5
PT-AQ-31 PT-AQ-32 PT-AQ-33
Clean water Wastewater Clean water
Aqueous Tritium
5 5 3
Total Sulfide Chlorophyll a
PT-AQ-34A Water Framework Directive PT-AQ-34B Water Framework Directive PT-AQ-34C Water Framework Directive
Cadmium; Lead; Mercury; Nickel
1 1 1 1
Atrazine; Diuron; Isoproturon; Simazine Alachlor; Chlorfenvinphos; Chlorpyrifos Endosulphan; Hexachlorobenzene; Hexachlorocyclohexane; Pentachlorobenzene; Trifluralin; Hexachlorobutadiene Benz(a)pyrene; Benzo(b)fluoranthene; Benzo(ghi)perylene; Benzo(k)fluoranthene; Indeno(123-cd)pyrene; Anthracene; Fluoranthene
PT-AQ-34E
Water Framework Directive
PT-AQ-34F
Water Framework Directive
1
PT-AQ-34G Water Framework Directive PT-AQ-34H Water Framework Directive
Tributyltin compounds
1 1
1,2-Dichloroethane; Dichloromethane; Trichlorobenzenes; Trichloromethane 2,4,4-Tribromodiphenylether (BDE 28); 2,2,4,4,5-Pentabromodiphenylether (BDE 99); 2,2,4,4,5,6-Hexabromodiphenylether (BDE 154)
PT-AQ-34I
Water Framework Directive
1
PT-AQ-34J PT-AQ-35 PT-AQ-36 PT-AQ-37 PT-AQ-38 PT-AQ-39
Water Framework Directive
DEHP; Benzene; Naphthalene
1
Spiking solution
COD; BOD TFN; TON Acrylamide
2 3 3 2 2
Taste and odour sample
Spiking solution Spiking solution
UV absorption
Surface/groundwater
Geosmin; Methyl Isoborneol; Anisole; TCA (2,4,6- Trichloroanisole); TBA (2,4,6-Tribromoanisole) Carbendazim; Chlorothalonil; Fenpropimorph; Flutriafol; Epoxyconazole; Flusilazole; Cyproconazole; Tebuconazole; Azoxystrobin; Boscalid; Kresoxym-methyl; Cyprodinil; Propiconazole; Prothioconazole
PT-AQ-40
Groundwater
2
PT-AQ-41
Spiking solution
Microcystin-LR; Microcystin-YR; Microcystin- RR; Total Microcystin 3
PT-AQ-42
Clean water
239Plutonium; 234Uranium; 235Uranium; 238Uranium; Total Uranium
2
PT-AQ-43 PT-AQ-50
Groundwater
Triclosan
2 5
Ecotoxicology sample
Daphnia Magna 48hr EC50; Daphnia Magna 24hr EC50; Vibrio Fischeri 30 minute IC50 (ISO 11348-3); Other 30 minute luminescent bacteria IC50 tests; 15 minute luminescent bacteria IC50 tests; Freshwater algae growth inhibition test (Pseudokirschneriella subcapitata)
PT-AQ-51
Groundwater
Bifenthrin; Cyfluthrin; Cypermethrin; Flumethrin; cis-Permethrin; trans-Permethrin 2 Benzo(a)pyrene; Fluoranthene; Cypermethrin; PFOS; PFOA 2
PT-AQ-52
Spiking solution
PT-AQ-53
Spiking solution
Simazine; Atrazine; Terbutryn; Alachlor; Diclofol; Bifenox; Quinoxyfen
1
The full range and availability of test materials and analytes is determined on an annual basis and may be added or removed. For accredited and non-accredited status, plus the most up to date sample data, please see the current application form/scheme description for this scheme.
70 lgcstandards.com/AXIO
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