The Commission recommends starting with total fluorine measurement: below 50 mg/kg, the packaging may be considered compliant. Above this, pyrolysis coupled with mass spectrometry distinguishes organic from inorganic fluorine, then a total oxidisable precursor (TOP) analysis checks the 25 and 250 µg/kg thresholds. No method is yet harmonised at European level.
Read the source article: PPWR PFAS food packaging limits: the 3 thresholds explained