AXIO | Proficiency Testing schemes 2026
Rounds per Year
Sample Code Matrix
Analytes
PT-AQ-19B
Synthetic effluent
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-19C Synthetic effluent
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
5
PT-AQ-19D Synthetic effluent
PCB (28); PCB (52); PCB (101); PCB (118); PCB (138); PCB (153); PCB (180); PCB (149); PCB (170) 5
PT-AQ-20
Synthetic effluent
2,4,5-T; 2,4,5-TP (Fenoprop); 2,4-D; 2,4-DB; Dicamba; 2,3,6-TBA; Clopyralid; Fluroxypyr; Benazolin; Mecoprop; Dichlorprop; MCPA; MCPB; Triclopyr; Bentazone; Bromoxynil; Dichlobenil; Ioxynil; Metaldehyde; Metazachlor; Propachlor; Propyzamide; Glyphosate; AMPA
5
PT-AQ-20B Synthetic effluent
Isoproturon; Diuron; Linuron; Chlortoluron; Monuron; Methabenzthiazuron; Diflufenican; Bromacil; Simazine; Atrazine; Propazine; Cyanazine; Trietazine; Prometryn; Terbutryn; Ametryn; Carbetamide; Pirimicarb; Metamitron 5
PT-AQ-21
Synthetic effluent
Azinphos-methyl; Azinphos-ethyl; Dichlorvos; Fenitrothion; Malathion; Mevinphos; Chlorfenvinphos; Diazinon; Fenthion; Parathion-ethyl; Parathion-methyl; Chlorpyrifos; Cypermethrin; Propetamphos; Ethion; Dimethoate
5
PT-AQ-22
Clean water
Ten organic analytes are provided for qualitative identification. This sample is designed to test the ability of laboratories to identify organic compounds via GCMS analysis. 5 designed to test the ability of laboratories to identify organic compounds via purge and trap GCMS analysis. 4 Six organic analytes are provided for qualitative identification. This sample is Volume of sample provided; Total Hydrocarbons C10-C40 by GC Analysis; Total Hydrocarbons C10; C40 by IR Analysis; Total Hydrocarbons C10; C40 by Gravimetric Analysis 5
PT-AQ-22A Clean water
PT-AQ-23
Mineral oil in wastewater
PT-AQ-24
Oil and Grease in water
Volume of sample provided; Total Oil and Grease
5
PT-AQ-25
Clean water
Qualitative Determination in Clean Water, at typical surface/potable levels. The intent of this sample is to test the ability of laboratories to detect and identify an unknown contaminant in surface/potable waters. 5
PT-AQ-26 PT-AQ-27 PT-AQ-28 PT-AQ-29
Spiking solution
PFOS; PFOA
2 3 3 3
Waste water
AOX
Spiking solution Spiking solution
Formaldehyde
COD – high; COD – low
Download Application Form Download Scheme Description
lgcstandards.com/AXIO 69
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