A reaction to fire laboratory at Leighton Buzzard, UKAS-accredited (23841) for non-combustibility, gross heat of combustion, the single burning item and radiant-panel methods, and for classification to BS EN 13501-1:2018 from that data. The laboratory works to a short turnaround and takes development and investigative work alongside classification testing, which matters to manufacturers reformulating a product before committing to a Euroclass.