LGC AXIO Proficiency Testing 2023 - Water & Environmental S…

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AQUACHECK Water Chemistry

Water is vital in sustaining all natural systems, and each source requires regular analysis to determine the safety and suitability of use. Potable water must be good in quality and quantity and free from harmful chemicals and microorganisms. Discharged water from local wastewater treatment plants and industries must comply with environmental guidelines. Process waters must be kept clean to ensure product quality. As water sources can change, regular testing is advised. AXIO Proficiency Testing offers the industry-leading AQUACHECK scheme that has been in continuous operation since 1985. Test materials are provided for the analysis of major inorganic/organics, metals, phenols, organochlorine pesticides, and many others. Participation in the AXIO AQUACHECK scheme allows laboratories to identify problems before they affect the quality and safety of waters. Participants will be able to demonstrate independently that they are producing accurate and meaningful results to laboratory management and customers.

Test Material* Analyte* Clean water (Organics)

Acid herbicides, Acrylamide, BTEX, Chlorinated solvents, Chlorophyll a, Fungicides, Geosmin and MIB, Haloform solvents, OC and OP pesticides, PAHs, PCBs, PFOA, PFOS, Formaldehyde, Phenols, Taste and odour, Triazines and Urea herbicides, Neonicotinoids, UV absorbing organics constituents.

Clean water (Radiochemistry) Ground water Qualitative water (Organics)

Aqueous tritium, Gross alpha, Gross beta.

Metals, Toxic metals, PFAs.

Organics by purge, trap and/or headspace GCMS, Qualitative determination of unknown contaminant. BOD, Chromium (VI), COD, DOC, MBAS, Metals, Non-ionic surfactants, Suspended solids, Toxic metals, Turbidity, Microcystins.

Clean water (Inorganics) Poorly buffered water


Arsenic, Cadmium, Chromium, Copper, Lead, Mercury, Molybdenum, Nickel, Vanadium, Zinc, Selenium, Total boron, Water extractable boron, Fluoride, Total nitrogen, Total phosphorus, Total potassium, Cobalt, Iron, Manganese, Total solids, Loss on ignition, pH, Extractable phosphorus, Extraction of potassium, Extraction of magnesium, Extraction of sodium, Organic carbon content, Conductivity, Carbonate content.


Chlorine (free, total), Inorganic disinfection by-products.

Clean water Hard and soft surface water Hard and soft potable water (Inorganics) Ecotoxicology High salinity potable water

Colour, Conductivity, Major inorganic components, Nutrients and others, pH, TDS.

Ecotoxicology tests.

Conductivity, Major ions, pH, TOC, TDS.

Acid herbicides, AOX, BTEX, Chlorinated solvents, Haloforms, OC and OP pesticides, Phenols, PCBs, PAHs, Triazines and Urea herbicides. Mineral oil, Oil and grease. BOD, Chromium (VI), COD, DOC, Metals, MBAS, Non-ionic surfactants, Non specific analytes, Nutrients and other analytes, Settleable solids, Suspended solids, Toxic metals, Turbidity. Ammonia, Cyanide, Major wastewater analytes, Metals, Nitrogen, Phenol (total), Phosphate, Sulfate, Sulfide (total). Arsenic, Cadmium, Chromium, Cobalt, Copper, Fluoride, Iron, Lead, Manganese, Mercury, Molybdenum, Nickel, Selenium, Total boron, Total nitrogen, Total phosphorus, Total potassium, Vanadium, Zinc.


Effluents & wastewater Effluents & wastewater (Industrial)


* 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 please see current application form/ scheme description.


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