The 2026 chemical lists broaden PFAS coverage and update testing methods, raising the evidence burden for mills, chemical suppliers and brands even though the overall fluorine threshold remains unchanged.
bluesign has revised its principal chemical reference lists for 2026, introducing more granular limits for per- and polyfluoroalkyl substances (PFAS) as textile regulations tighten globally. The new BSSL v17.0, BSBL v8.0 and RSL v17.0 took effect on July 1, 2026, with revised requirements generally to be implemented by bluesign System Partners no later than July 1, 2028 unless otherwise specified.
PFAS limits become more granular
The headline change is not a reduction in bluesign’s existing 50 mg/kg total-fluorine threshold, which remains unchanged. Instead, PFAS are now structured into three groups: PFAS polymers, PFAS dyes and other PFAS.
PFAS dyes and non-polymer, non-dye PFAS now carry a 250 μg/kg—or 250 ppb—group limit, together with a 25 μg/kg individual-substance limit. PFAS polymers remain subject to the 50 mg/kg total-fluorine limit. The lists classify all three groups under a usage ban.
bluesign has also added guidance distinguishing fluorinated dyestuffs that do not meet the definition of PFAS, an
increasingly important issue as laboratories use broader fluorine screening techniques.
Testing requirements evolve
Recommended total-fluorine testing now includes EN ISO 20999:2026, ASTM D7359 and EN 17813:2023. More specific analytical methods are prescribed for non-polymeric PFAS in leather and polymer components.
The revision extends beyond PFAS. It also updates restrictions covering formaldehyde, bisphenol F, metals, pesticides, flame retardants, solvents and other chemicals.
Mills need upstream chemical control
The change comes after bluesign completed its broader PFAS phase-out: from January 2026, PFAS have been restricted in bluesign APPROVED materials and bluepass products and removed from its chemical and material databases, subject to limited exceptions.
For textile processors, the practical priority is therefore not simply finished-fabric testing. Mills should review chemical inventories, obtain formulation-level declarations from suppliers, strengthen incoming-chemical approval and align laboratory testing with the new thresholds.
As France, Sweden and the EU continue tightening PFAS controls, chemical management capable of proving absence, not merely compliance with traditional RSLs, is becoming a prerequisite for market access.
