UKAS — the United Kingdom Accreditation Service — is the sole national accreditation body recognised by the UK government for assessing testing laboratories. Accreditation to ISO/IEC 17025 is the internationally-recognised standard for the competence of testing and calibration laboratories.
What UKAS accreditation actually means.
- Technical competence of staff is independently assessed annually
- Measurement traceability is proven through a documented calibration chain
- Test methodology is written, reviewed and audited to the standard
- Impartiality is a pre-condition — UKAS laboratories cannot sell products they test
- Every reading and report is reproducible by a second independent laboratory
Schedule No. 7933 covers BS 7976, BS EN 16165, EN 13036-4, EN 14231 and related surface slip testing standards — both field and laboratory work, both Slider 96 (shod) and Slider 55 (barefoot).
Why it matters in Welsh litigation.
Welsh civil courts — County Court centres across Cymru and the High Court sitting at Cardiff — consistently accept UKAS-accredited reports as expert evidence. Reports not produced under ISO/IEC 17025 carry substantially less weight and can be challenged on methodology, calibration or competence grounds.