Analytical Method
Rapid laboratory assessments measure the concentration of elemental fluorine in consumer products to detect the presence of per- and polyfluoroalkyl substances. Utilizing total fluorine screening helps textile mills and brands quickly identify treated fabrics that might contain regulated water-repellent chemicals without running expensive compound-specific tests. This screening identifies only the total amount of fluorine present, rather than distinguishing between different fluoroalkyl compounds.
It is a critical first step in verifying that rainwear is truly fluorocarbon-free.
Chemical Identification
The test uses combustion ion chromatography to burn the fabric sample and capture the resulting fluorine gas in a liquid solution. This solution is analyzed to determine the total concentration of fluorine in parts per million. If the level is high, it is highly likely that the fabric was treated with persistent fluorinated compounds.
Border Screening
Regulators and brands use this rapid test to sort compliant water-repellent clothing from non-compliant stocks quickly. This preliminary filter saves time and reduces the cost of chemical testing for large garment shipments. Any sample that exceeds the screen limit is sent for full chromatographic analysis.
Verification Method
Finishing plants that produce outdoor apparel use this test to prove that their water repellents are free of contamination. Screen testing prevents chemical compliance failures.
