Why does the fabric test show excessive fluorine content despite using a fluorine-free water repellent?

1、Better detection methods now expose “hidden PFAS” In the past, limited detection methods could not find PFAS residues in textiles. That has changed completely. The EU enforced EN 17681-1:2025 in October 2025. This new PFAS testing standard uses advanced “alkaline hydrolysis” technology. It requires total organic PFAS ≤ 50 ppm. This method reveals hidden PFAS […]