AXIO | Proficiency Testing schemes 2026
Rounds per Year
Sample Code Matrix
Analytes
PT-AQ-63 PT-AQ-64
Waste water Waste water
Acetate; Iodide
1
Trichloromethane; Bromodichloromethane; Dibromodichloromethane; Tribromomethane; Total Trihalomethanes (TTHM); pH at 20-25°C; Total Organic Carbon (TOC); Total Alkalinity; Total Hardness; Total Dissolved Solids 1 1,3,5-Trinitrobenzene; 1,3-Dinitrobenzene; 2,4-Dinitrotoluene; 2,6-Dinitrotoluene; 2-Amino-4,6-dinitrotoluene; 2-Nitrotoluene; 3-Nitrotoluene; 4-Amino-2,6-dinitrotoluene; 4-Nitrotoluene; Diphenylamine; Nitrobenzene 1
PT-AQ-65
Groundwater
PT-AQ-66
Groundwater
Clothianidin; Imidacloprid; Thiamethoxam; Acetamiprid; Thiacloprid Participants are provided with a solution containing a minimum of 20 Perfluoroalkyl and polyfluoroalkyl substances (PFAS) for quantitative determination.
1
PT-AQ-67
Potable (treated) water
2
PT-AQ-68 PT-AQ-69 PT-AQ-70 PT-AQ-71 PT-AQ-72 PT-AQ-73 PT-AQ-74 PT-AQ-75
Potable (treated) water
17- β Estradiol; Estrone
1
Treated water from discharge point
Free Chlorine
2 2
Potable (treated) water
47 x PFAS – please refer to AQUACHECK scheme description for further details
Surface water
6PPD quinone Epichlorohydrin
1 1
Potable (treated) water Potable (treated) water
6:2 Fluorotelomer Alcohol; 8:2 Fluorotelomer Alcohol 1
Potable (treated) water
Vinyl chloride
1 1
Surface water
Lanthanum; Cerium; Praseodymium; Neodymium; Gadolinium; Terbium
Rounds per Year
Sample Code Matrix
Analytes
NEW PT-AQ-77
Mineral fertiliser
pH; Moisture; Conductivity (20oC); Total nitrogen; Ammoniacal nitrogen; Mercury; Lead; Cadmium; Calcium
1
NEW PT-AQ-76 NEW PT-AQ-78
Pool spa water
Cyanuric acid
1
Potable water
Bisphenol A
1
ENHANCED PT-AQ-57 ENHANCED PT-AQ-02H ENHANCED PT-AQ-02S ENHANCED PT-AQ-02HP ENHANCED PT-AQ-02SP
Potable water
Azithromycin
1
Surface water
Colour ISO 7887
5
Surface water
Colour ISO 7887
5
Potable water
Colour ISO 7887
2
Potable water
Colour ISO 7887
2
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.
72 lgcstandards.com/AXIO
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