AXIO | Proficiency Testing schemes 2026
Rounds per Year
Sample Code Matrix
Analytes
PT-AQ-13
Simulated sewage sludge (animal or human, manure or compost)
Arsenic; Cadmium; Chromium; Copper; Lead; Mercury; Molybdenum; Nickel; Vanadium; Zinc; Selenium; Total boron; Fluoride; Total nitrogen; Total phosphorus; Total potassium; Cobalt; Iron; Manganese; Total carbon; Total Sulphur
5
PT-AQ-14 PT-AQ-15 PT-AQ-16
Agricultural soil
Antimony
5 4 5
Wastewater
Settleable solids
Sewage sludge
Total Solids (105±5°C); Loss on ignition (500±5°C); pH at 20-25°C; Calcium; Magnesium; Ammoniacal Nitrogen pH at 20-25°C; Settled Chemical Oxygen Demand (COD); Total COD; Suspended Solids; Conductivity (20°C); Total Dissolved Solids; Non Filterable COD; Salinity
PT-AQ-17A Industrial wastewater
5
PT-AQ-17B
Wastewater
Fluoride
5 5
PT-AQ-17C Industrial wastewater
Aluminium; Antimony; Arsenic; Barium; Boron; Beryllium; Cadmium; Chromium; Cobalt; Copper; Iron; Lead; Manganese; Molybdenum; Mercury; Nickel; Selenium; Silver; Tin; Vanadium; Zinc; Titanium Ammonia; Soluble Reactive Phosphorus (PO4); Total Phosphorus; Total Nitrogen Chloroform; Bromodichloromethane; Dibromochloromethane; Bromoform; Trichloroethene; Tetrachloroethene; Carbon Tetrachloride; 1,2 Dichloroethane Phenol; 2-Chlorophenol; 4-Chlorophenol; 3-Bromophenol; 2,4-Dichlorophenol; 2,4,6-Trichlorophenol; Pentachlorophenol; 2,5-Dimethylphenol; 3,5-Dimethylphenol; 2-Methylphenol (o-cresol); 3-Methylphenol (m-cresol); 4-Methylphenol (p-cresol); Total monosubstituted methylphenols; 4-Chloro-3- methylphenol; 2,6-Dichlorophenol; 2,4,5-Trichlorophenol; 2,4-Dimethylphenol; Nonylphenol Benzene; Toluene; Ethylbenzene; Styrene; o-Xylene; m-Xylene; p-Xylene; Total Xylene; m-+ p-Xylene Endrin; Dieldrin; Aldrin; p,p’-DDT; o,p-DDT; p,p’-DDE; o,p’-DDE; p,p’-DDD; o,p’-DDD (TDE); Alpha Hexachlorocyclohexane (HCH); Beta Hexachlorocyclohexane (HCH); Delta Hexachlorocyclohexane (HCH); Lindane (Gamma HCH); Trifluralin; Alpha endosulphan; Beta endosulphan; Hexachlorobenzene; Heptachlor; Heptachlor Epoxide; Pentachlorobenzene; Pendimethalin; Cis-Chlordane; Trans- Chlordane; Methoxychlor; Endosulfan Sulfate; Endrin Aldehyde
PT-AQ-17D Industrial wastewater
5
PT-AQ-18A Synthetic effluent
5
PT-AQ-18B
Synthetic effluent
3
PT-AQ-18C Synthetic effluent
5
PT-AQ-19A Synthetic effluent
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.
68 lgcstandards.com/AXIO
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