The "reaction to fire" tests classify the material in 5 categories from A1, A2 to B1, B2, B3 according to the DIN 4102 . The specific standard that is applicable depends of the intended use (see table below).
Table 1: classification according to the DIN 4102 | Building material class | Designation | Test method | | A1 | Non combustible | Furnace test 750°C
Brandschacht
Smoke density DIN E 53436/37
Toxicity to DIN 53436
Calorific potential to DIN 51900 -2
Heat release to DIN 4102 Part 8 | | A2 | | B1 | Low flammability | Brandschacht and small burner test
Radiant panel test for floor coverings | | B2 | Moderately flammable | Small buner test | | B3 | Highly flammable | No test |
|