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Reaction to fire testing and Euroclass classification

Assessing the reaction to fire, flammability and contribution to fire of construction products and other materials found in buildings and transport systems.
A material’s fire performance is an extremely important factor in assuring public safety and evacuation in the event of a fire. As such, reaction-to-fire testing is a mandatory requirement of the technical codes, standards and regulations of the construction and transport industries.
In Europe, construction materials must be tested in line with the Euroclass system, which classifies a product according to its reaction to fire (flammability, smoke opacity and toxicity, etc.).
Each member state’s national legislation incorporates this European classification and defines the permitted uses of each type of material, with the optional inclusion of supplementary requirements.
In the field of vehicles and transport systems (automotive, rail, maritime or aerospace), materials must be tested against the particular standards and requirements set by the sector or manufacturer (OEM) in question.


Our fire laboratories in Barcelona, Spain (LGAI Technological Center S.A.) are ISO/IEC 17025 accredited by ENAC/ILAC (nº 9/LE895) and carries out more than 200 fire and thermal tests per year in accordance with European and national regulations. See the complete list of our accreditations. We can provide our clients with:
  • The Euroclass reaction-to-fire classification of their construction materials – a certification that is recognised at a pan-European level
  • Test reports citing the flammability performance of materials used in a range of industries


  • Construction and industrial materials: thermal insulation materials, panels and boards, sandwich panels, wood and plastic coatings, plastics, floors, suspended ceilings, structural-protection elements, paints, windows and partitions
  • Other products: cables, electrical materials, toys, aerosols, textile coverings


  • Euroclass classification (A1, A2, B, C, D, E and F plus the following subclasses: “s” for smoke, “d” for droplets and “fl” for flooring)
  • Materials classification (M0 to M4)
  • Flammability (various) and oxygen index (LOI)
  • Accelerated ageing and flammability of textiles (curtains, upholstered furniture, etc.)
  • Fire behaviour of cables and electrical components
  • Opacity of smoke emitted by burning materials
  • Thermal tests: thermal resistance, U-value (thermal transmittance)


  • Construction: EN 13501-1, UNE 23727, EN 13773, EN 1021-1/-2, …
  • Rail: EN 45545-2, NF F 16101, BS 6853, NFPA 130, UIC 564-2, DIN 5510-2 (partial)
  • Maritime: Resolution MSC.307[88], …
  • Aerospace: AITM, FAR/CS 25 subpart F,...
  • Automotive: ISO 3795, FMVSS 302, DIN 75200, UNE 26234 and a range of technical specifications
  • Electrical: IECs, UL 94, ENs, …
  • Fire alarms: EN 54-5 Heat detectors, EN 54-7 Smoke detectors, EN 14604 Smoke alarm devices


  • SBI
  • Radiant panel
  • Non-combustibility equipment
  • Fire behaviour of cables and electronic components
  • Fourier-transform infrared (FTIR) spectrometer
  • Cone calorimeter


Applus+ is one of the leading European reaction-to-fire laboratories in terms of equipment, number of tests carried out and accreditation scope. Our team of experts, versatile facilities and quality processes allow us to provide competitive services.
We offer an online test-viewing service, enabling our clients to monitor the testing and performance of their products from the comfort of their own premises.
With more than 30 years’ experience in the fire sector, we are members of EGOLF and our experts sit on the key technical and policy forums (CEN) that are involved in the development of new standards.


  • Assurance of a product’s fire behaviour
  • Access to the European market with a range of accredited tests and classification certificates that are recognised by European administrations
  • Reduced testing time required
  • The full evaluation of a product in a single centre and through a single point of contact, involving a combination of technologies (fire resistance, acoustics, thermal characterisation, physicochemical characterisation, mechanical resistance…)
Reaction to Fire Tests - Radiant Panel | Applus+ Laboratories Euroclasses Reaction to Fire Tests | Applus+ Laboratories Non Combustibility Tests | Applus+ Laboratories
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