AOF index

Thanks to its expertise in water analysis, CTC can help you detect AOF in your effluents at the regulatory threshold of 2 µg/L. This index analysis enables the quantity of total organic fluorine, including PFAS, to be evaluated.

At CTC, we are committed to providing you with high-quality water analysis services that meet your needs.

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What is the AOF index ?

The AOF index is a method for measuring the concentration of adsorbable organic fluorine in environmental samples such as soil, groundwater and surface water. This process detects total fluorine compounds that can be adsorbed in a matrix.

Why test for this parameter ?

Measurement of AOF is mandatory under the Ministerial Decree of 20 June 2023 according to Légifrance  regarding the analysis of per- and polyfluoroalkyl substances in the water discharges of facilities classified for environmental protection and subject to the authorisation procedure.

Total fluorine measurement is mandatory under REACh.

What is the regulatory threshold ?

The AOF content in an effluent must not exceed 2 µg/L.

CI combustion system

Percolation – activated carbon enrichment
Active samples placed in combustion boats
Digestion of activated carbon by pyrohydrolitic combustion in a furnace at >1,000 °C.
Analysis by ion chromatography
Use of results

Why choose CTC for your AOF testing and measurement?

Our experts have in-depth knowledge of water analysis. Our laboratory, accredited by the French Ministry of the Environment since 1976 and by the French Ministry of Health since 2012, offers a range of high-quality services.

Our customer service team is available to advise you and will respond within 24 to 48 hours.

With CTC, you can count on:

Guaranteed turnaround times
We are committed to providing your analysis results within 12 days, unless outsourcing

Tailored logistics
We organise the logistics side to meet your specific needs

Dedicated facilities
Our 1,000 m² facilities are exclusively reserved for chemical analysis

State-of-the-art laboratory equipment
We use cutting-edge technology to ensure accurate analysis results

Monitoring of standards and regulations
We constantly monitor regulatory developments to ensure our services comply with the latest standards.