PFAS and fluoropolymer tubing: what does the EU restriction mean for your lab?

Last updated: 13 August 2026

PTFE, PFA and FEP are the workhorses of every laboratory and every analyser set-up. They are almost universally chemically resistant, clean, and for many applications there is no equivalent alternative. It is precisely these materials that fall under the proposed European PFAS restriction.

The question we are asked most often by buyers and lab managers: will I still be able to order PTFE tubing in five years' time? Below is the current state of affairs, what has and has not been decided, and what you can sensibly do now.

⏱ approx. 6 minutes reading time

Short answer

In the short term, nothing changes. There is no law yet, only a proposal that is halfway through the decision-making process. A final decision by the European Commission is not expected before 2027, and any restriction will come with transition periods and exemptions. Your current set-up and your current orders are not at risk.

In the longer term, it is wise to know where fluoropolymers are used in your processes and which of them are truly irreplaceable. That inventory takes little effort now and saves a lot later.

What exactly is this about?

The restriction proposal was submitted by the national authorities of the Netherlands, Germany, Denmark, Norway and Sweden. The Netherlands is therefore a co-submitter, one reason why this dossier receives extra attention here.

The proposed definition is structural: any substance that contains at least one fully fluorinated methyl (CF₃-) or methylene (-CF₂-) carbon atom, without any hydrogen, chlorine, bromine or iodine attached to it. This definition is in line with the 2021 OECD definition and covers more than 10,000 substances.

For your fluidic path, this specifically means that the following materials fall within the scope:

Important for context: PEEK, polypropylene, PE, silicone and stainless steel do not fall under the definition.

What was decided in 2026?

Two ECHA scientific committees issued their opinions this year.

RAC (risk assessment) adopted its final opinion on 2 March 2026 and supports an EU-wide restriction.

SEAC (socio-economic analysis) published a draft opinion on 26 March 2026 and opened a consultation that closed on 25 May 2026. The thrust of that draft opinion is more nuanced than the headlines suggest: SEAC considers that a full ban is probably not proportionate, and instead supports a restriction with use-specific derogations. At the same time, SEAC questions derogations without an end date.

And this is the point that is often misrepresented: the industry's request to keep fluoropolymers entirely outside the scope has been rejected by both RAC and SEAC. Fluoropolymers remain part of the restriction. What they do get is separate treatment within the restriction.

What does that separate treatment involve?

Three things.

More exemptions. In the updated version of the dossier, the number of proposed derogations has grown from 26 to 74. These include temporary exemptions for fluoropolymers in semiconductor production, certain medical devices and renewable energy infrastructure.

A third regulatory option. For fluoropolymers, a variant has been added that allows continued use under conditions intended to minimise emissions, focused on the production and waste phases, not on use in a closed fluidic path.

Recognition of the distinction. RAC explicitly acknowledges that the evidence for the mobility and bioaccumulation of fluoropolymers is different from that for low-molecular-weight PFAS. That distinction shapes the form of the measure, but does not lead to exclusion.

No separate derogation has yet been formulated specifically for laboratory applications. However, the reasoning accepted for pharma and medical devices is largely the same: there is no alternative material with comparable chemical stability, and use takes place in a closed system with negligible emissions.

What happens next?

• End of 2026: SEAC adopts its final opinion.
• Then: the RAC and SEAC opinions go to the European Commission together.
• 2027 or later: the Commission drafts a legal text, followed by decision-making with the member states.
• Then: entry into force with a transition period, and only after that do the derogation periods begin (in the proposal, including five years for certain applications).

In practical terms: even in the strictest scenario, you are looking at the end of this decade before a specific application actually lapses. That is enough time to qualify alternatives, but not enough to wait until it happens.

A separate case: labs that analyse PFAS

For environmental and drinking water laboratories, a second, much more immediate problem arises. Fluoropolymers in the sample path can cause background contamination in PFAS analysis with LC-MS/MS, precisely at the levels you want to quantify. The tightened Drinking Water Directive pushes detection limits down further, increasing the demands on the fluidic path.

For this application: avoid PTFE, PFA and FEP in anything that touches the sample; lines, fittings, ferrules, filters, septa and bottle caps. Common alternatives are PEEK, stainless steel, polypropylene and HDPE. Glass can also be used, although adsorption may play a role. In addition, include blanks that pass through the entire fluidic path, not just the vials.

This is the only situation in which we actively advise replacing fluoropolymers now, not because of regulations, but because of data quality.

Are there alternatives?

For some applications yes, for others no. An honest picture:

PEEK is the most commonly used replacement in analytical systems. Bio-inert, metal-free, easy to process. Be aware of the limits: dichloromethane, THF and DMSO cause swelling, and concentrated nitric acid and sulphuric acid attack PEEK. The pressure rating is also more limited than that of stainless steel.

Stainless steel (316/316L) is excellent for high pressure and broad solvent compatibility, but not for halide-containing buffers, strongly acidic media or metal-sensitive analytes.

Polypropylene, PE and HDPE are sufficient for aqueous media at low pressure and ambient temperature, but not for solvents or elevated temperatures.

Silicone and TPE are the standard for peristaltic pumps and single-use applications, but have limited solvent resistance and higher gas permeability.

Where no alternative exists is in the combination of aggressive chemistry, high temperature and high purity requirements. In its response to the dossier, the pharmaceutical industry argued precisely that: a replacement that combines all the functionalities of PTFE is hard to find, and any alternative with comparable chemical stability is itself likely to be persistent.

What can you do now?

1. Take stock of where fluoropolymers are used. Not just tubing: also ferrules, seals, membranes, filters and valve seats. A simple list per set-up is sufficient.

2. Separate critical from convenience. In many labs, PTFE is used in places where polypropylene or silicone would have been perfectly fine; waste lines, rinse lines, connections for aqueous media. These are the easy swaps. Keep fluoropolymer where it is functionally necessary.

3. Test before you switch. Not sure whether an alternative material can tolerate your medium? Cut a piece of tubing four to five centimetres long, slice it open and immerse half of it in the liquid for 48 hours. Then compare for swelling, discolouration and hardening.

4. Document your justification. If an application will later need to fall under a derogation, a recorded rationale as to why there is no alternative is worth more than a reconstruction after the fact.

5. Do not replace preventively. Switching to a less suitable material will already cost you measurement quality, service life and faults now, for a ban that may not materialise in this form. The exception is PFAS analysis itself; see above.

Sources

• ECHA, RAC and SEAC opinions on the PFAS restriction (March 2026): https://echa.europa.eu
• ECHA, timeline for the evaluation of the PFAS restriction: https://echa.europa.eu/-/echa-announces-timeline-for-pfas-restriction-evaluation
• Plastics Europe / Fluoropolymers Group, overview of the EU PFAS restriction: https://www.fluoropolymers.eu/eu-pfas-restriction/
• White & Case, analysis of the RAC final opinion and the SEAC draft opinion: https://www.whitecase.com/insight-alert/europes-pfas-restriction-proposal-moving-forward
• EFPIA, response to the Annex XV restriction proposal: https://www.efpia.eu

This article is intended as general information and not as legal advice. For an assessment of your specific situation, please refer to ECHA and your own compliance department.