AXIO | Proficiency Testing schemes 2026
Rounds per Year
Sample Code Matrix
Analytes
PT-AQ-04A Surface water
Dissolved metals: Iron; Manganese; Copper; Aluminium; Zinc; Barium; Boron; Strontium; Lithium Metals: Iron; Manganese; Copper; Aluminium; Zinc; Silver; Barium; Boron; Strontium; Lithium Cadmium; Lead; Nickel; Selenium; Arsenic; Antimony; Mercury; Cobalt; Vanadium; Chromium; Molybdenum; Tin; Beryllium; Titanium
2
PT-AQ-04G Groundwater
5
PT-AQ-05
Surface water
5
PT-AQ-05A Clean water PT-AQ-05B Clean water PT-AQ-05C Clean water PT-AQ-05G Groundwater
Arsenic; Selenium; Antimony; Tin
3 5 3 5
Cadmium; Copper; Total Chromium; Lead; Nickel; Zinc; Vanadium; Mercury
Chromium (VI)
Cadmium; Lead; Nickel; Selenium; Arsenic; Antimony; Mercury; Cobalt; Vanadium; Chromium; Molybdenum; Tin; Beryllium; Titanium; Lanthanum
PT-AQ-06A Groundwater
Chloroform; Bromodichloromethane; Dibromochloromethane; Bromoform; Trichloroethene; Tetrachloroethene; Carbon Tetrachloride; 1,2 Dichloroethane 5
PT-AQ-06B Groundwater PT-AQ-06C Groundwater
Phenol; 2-Chlorophenol; 4-Chlorophenol; Benzene; Toluene; Ethylbenzene; Styrene; o-Xylene; m-Xylene; p-Xylene; Total xylene; m-+ p-Xylene; 1,2,4-trimethylbenzene; MTBE (methyl tert-butyl ether) Endrin; Dieldrin; Aldrin; p,p’-DDT; o,p-DDT; p,p’-DDE; o,p’-DDE; p,p’-DDD; o,p’-DDD (TDE); Alpha Hexachlorocyclohexane; Beta Hexachlorocyclohexane; Delta Hexachlorocyclohexane; Lindane (Gamma HCH); Trifluralin; Alpha Endosulphan; Beta Endosulphan; Hexachlorobenzene; Heptachlor; Heptachlor Epoxide; Pentachlorobenzene; Pendimethalin; Cis- Chlordane; Trans-Chlordane; Methoxychlor; Endosulfan Sulfate; Endrin Aldehyde
5 5
PT-AQ-07A Groundwater
5
PT-AQ-07B Groundwater
Hexachlorobutadiene; Carbon Tetrachloride; Tetrachloroethene; 1,2,4-Trichlorobenzene; Trichloroethene; 1,1,1-Trichloroethane; 1,3,5-Trichlorobenzene; 1,2,3-Trichlorobenzene; 1,2-Dichloroethane; Chloroform 5
PT-AQ-07C Groundwater
Fluoranthene; Benzo(b)fluoranthene; Benzo(k)fluoranthene; Benz(a)pyrene; Benzo(ghi)perylene; Indeno(1,2,3-cd)pyrene Acenaphthene; Acenaphthylene; Anthracene; Benz(a)anthracene; Chrysene; Dibenz(ah) anthracene; Fluorene; Naphthalene; Perylene; Phenanthrene; Pyrene PCB (28); PCB (52); PCB (101); PCB (118); PCB (138); PCB (153); PCB (180); PCB (149); PCB (170)
5
PT-AQ-07D Groundwater
5
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.
66 lgcstandards.com/AXIO
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