EN 13501-1

Reaction-to-Fire Testing

Reaction-to-fire tests classify the fire behaviour of construction products under the European Euroclass system (EN 13501-1). They measure ignitability, flame spread, heat release, smoke production, and flaming droplets. Euroclass classification is mandatory for construction products placed on the EU market under the Construction Products Regulation (CPR).

What it measures

  • Ignitability (Class E -- single flame source)
  • Flame spread and heat release rate (Classes B/C/D -- SBI test)
  • Smoke production (s1/s2/s3 sub-classification)
  • Flaming droplets (d0/d1/d2 sub-classification)
  • Non-combustibility (Class A1/A2 -- furnace + calorimeter)
🇩🇪 DIN EN 13501-1 🇬🇧 BS EN 13501-1 🇫🇷 NF EN 13501-1 🇮🇹 UNI EN 13501-1 🇪🇸 UNE EN 13501-1 🇳🇱 NEN EN 13501-1 🇩🇪 DIN EN ISO 11925-2 🇬🇧 BS EN ISO 11925-2 🇫🇷 NF EN ISO 11925-2 🇮🇹 UNI EN ISO 11925-2 🇪🇸 UNE EN ISO 11925-2 🇳🇱 NEN EN ISO 11925-2
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ENAC LE1230 Porriño, ES
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IEC 60695-11-2 UNE-EN 60811-203 UNE-EN 50396 UNE-EN 60811-508 IEC 60811-201 + 3 more
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UKAS 0654 Norwich, GB
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EN 13501-2 BS 1363-1 BS 476 Part 20:1987 DIN 51363-2 DIN EN 14845-2 + 3 more
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UKAS 1079 Gloucestershire, GB
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DAkkS D-PL-21177-01-02 Leverkusen, DE
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UKAS 4301 Llanishen, GB
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DAkkS D-PL-12037-01-02 Jena, DE
DIN EN 61010-1 VDE 0411-1 IEC 61010-1 : 2010 DIN EN 60825-1 VDE 0837 + 3 more
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DAkkS D-K-12037-01-01 Jena, DE
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UKAS 27202 Paisley, GB
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UKAS 7914 Willsbridge, GB
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UKAS 1643 Chelmsford, GB
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DAkkS D-ML-13206-01-01 Tübingen, DE
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Cenata

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DAkkS D-ML-21205-01-01 Tübingen, DE
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UKAS 4343 Guangdong China, CN
AS/NZS ISO 8124-1:2019/AMD 1 :2020 + ISO 8124-1 (2023) BS EN 1711 BS EN 12697-12:2018 ISO 8124-2 + 3 more
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ACCREDIA 00041 Como, IT
DIN EN ISO 15586 EPA 3510 ISO 16181-1 EPA 8270 DIN EN 12477 + 3 more
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ACCREDIA 02292 Faenza, IT
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UKAS 0822 Southam, GB
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Industries

Construction Building Materials Insulation Flooring Facades

Related Standards

  • EN 13501-1 Fire classification of construction products -- Reaction to fire
  • EN ISO 11925-2 Ignitability of products subjected to direct impingement of flame
  • EN 13823 Building products exposed to thermal attack by single burning item (SBI)
  • EN ISO 1182 Reaction to fire -- Non-combustibility test

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