A claim that a product is PFAS-free or contains no intentionally added PFAS may appear straightforward. Establishing the evidence behind that claim is often considerably more complex.
Materials can originate from multiple suppliers, contain different chemical formulations and undergo several manufacturing processes before becoming finished products.
A supplier declaration provides information. A laboratory test provides evidence about a sample. Neither necessarily establishes continuing confidence in the chemical composition of a product.
Assurance requires understanding what is being claimed, how it has been verified and what controls maintain its reliability over time.
Declaration → Verification → Assurance
1. Declaration — Establishing the Claim
The starting point is understanding what manufacturers and suppliers are declaring about their materials and products.
We examine the scope of claims, available formulation information, supplier documentation and the substances or chemical groups covered.
This helps identify what is known, what remains uncertain and where additional evidence may be required.
2. Verification — Evaluating the Evidence
Verification examines whether the available evidence adequately supports the claim.
This may involve reviewing laboratory reports, evaluating analytical methods and detection limits, developing appropriate testing strategies and assessing whether samples represent the finished article.
Different analytical methods answer different questions. Selecting an appropriate method — and understanding its limitations — is essential to meaningful verification.
The objective is not simply to obtain a test result, but to understand what that result can reliably establish.
3. Assurance — Building and Maintaining Confidence
Assurance extends beyond an initial product assessment or laboratory result.
It connects verified chemical evidence with documented Chain of Custody, material and supplier qualification, product traceability, change management and continuing oversight.
These controls help establish that the materials and manufacturing processes supporting an assurance claim remain consistent with the evidence on which that claim was originally based.
The level of verification and oversight is determined by the materials, chemical risks, supply-chain complexity and claims being made.
Assurance is not simply confirmation of a result. It is the ability to demonstrate how that result remains relevant to the product being supplied.
