Most fire door manufacturers can point to a test report. That is the easy part. The questions that actually separate evidence depth are: who ran the test, how many tests support the full range, and who independently assessed the results into a usable field of application.
DFM DS doorsets are classified under ETA-22/0324, with fire resistance and smoke-control evidence generated at six independent European test institutes: ITB, Efectis France, Efectis Netherlands, KIWA Inspecta, OiB and RISE. A European Technical Assessment is an independent assessment of that evidence — not a single test report — which is what gives the classification and its field of application their weight.
Evidence depth is not a marketing phrase; it is a measurable difference in how much independent testing stands behind a product and how rigorously that testing has been assessed. For a fire door, it is the difference between a claim that survives scrutiny and one that does not.
What a European Technical Assessment covers
An ETA is not a test report. It is an assessment document issued by a Technical Assessment Body — in DFM’s case, the Österreichisches Institut für Bautechnik (OiB) in Vienna, Notified Body 1322. It takes the underlying test evidence and assesses it into a defined set of essential characteristics, each with its supporting evidence, and a field of application stating the range of sizes, frame types, hardware and configurations within which the classification holds.
ETA-22/0324 was first issued in 2022 and revised in May 2024. The 2024 revision extended the field of application and updated the supporting evidence. The document runs to 276 pages with 25 installation annexes — a scale that itself signals how much tested configuration sits behind the range, rather than a single leaf size extrapolated outwards.
An ETA is not a test report. It is an independent assessment of all the evidence into a defined field of application — which is exactly what gets interrogated when documentation is challenged.
The six institutes — why more than one matters
DFM DS evidence was generated at six independent European test institutes, each an established name in fire testing:
- ITB — the Building Research Institute, Poland.
- Efectis France — one of Europe’s principal fire-testing and research bodies.
- Efectis Netherlands — the Dutch arm of the same group.
- KIWA Inspecta — an international testing and certification body.
- OiB — the Austrian Institute of Construction Engineering, which also issues the ETA.
- RISE — the Research Institutes of Sweden.
Evidence drawn from multiple independent institutes is harder to dismiss than a single report from a single source. It means the performance has been demonstrated across more than one laboratory’s methods and scrutiny — breadth that becomes valuable precisely when a reviewer is looking for a reason to doubt a claim.
What this means when you specify
When you specify a DFM DS doorset, the chain of evidence you can follow is: the Declaration of Performance states the classification; it references ETA-22/0324; the ETA sets out the field of application and the essential characteristics; and behind each characteristic sits test evidence from the six institutes. Every link is independently verifiable, and ETA-22/0324 is a public document available from OiB.
That is the practical meaning of evidence depth. It is not that more certificates look impressive — it is that when a Gateway inspector, a building control officer or a fire engineer pulls on the evidence, it holds, because there is more behind it than a single test and a single signature.
Want the full evidence trail for a DFM DS doorset — classification, ETA reference and institute-level detail — in one place? Download the DFM Doors UK Technical Specification Guide, or contact Matthew Creely directly at matthew.creely@dfm-doors.com.
Frequently Asked Questions
What is the difference between an ETA and a fire test report?
A fire test report records the result of one test. A European Technical Assessment (ETA) is an independent assessment by a Technical Assessment Body that takes the underlying test evidence and defines the product’s essential characteristics and its field of application. The ETA is the assessed, usable document behind the classification.
Which test institutes provide evidence for DFM DS doorsets?
Six independent European institutes: ITB (Poland), Efectis France, Efectis Netherlands, KIWA Inspecta, OiB (Austria) and RISE (Sweden). Their evidence underpins the fire resistance and smoke-control classifications assessed in ETA-22/0324.
Why does evidence from multiple institutes matter?
Evidence drawn from several independent laboratories is harder to dismiss than a single report from one source. It demonstrates performance across more than one body’s methods and scrutiny, which gives the classification greater weight when documentation is challenged at Gateway or in post-occupancy inspection.
What is ETA-22/0324?
It is the European Technical Assessment covering DFM DS doorsets, issued by OiB Vienna (Notified Body 1322), first issued in 2022 and revised in May 2024. It runs to 276 pages with 25 installation annexes and defines the classifications, essential characteristics and field of application for the range.
How can I verify a DFM DS doorset’s evidence?
Request the Declaration of Performance, which references ETA-22/0324. The ETA is a public document available from OiB and sets out the field of application and the essential characteristics, each supported by the six institutes’ test evidence. Cross-reference it against the doorset as specified and installed.