EN ISO 1182 - Non-combustibility test

This test is used to evaluate the non-combustible properties of construction materials.

The test is included in the EN 13501-1 fire classification standard for classifications A1, A2, A1fl, A2fl, A1L, and A2L.

When aiming for A1 classes, the gross heat of combustion test (EN ISO 1716) is also required. For A2 classes, either the single burning item test (EN 13823) or the reaction to fire test for flooring (EN ISO 9239-1) is required in addition to this test or EN ISO 1716.

During non-combustibility testing, the specimen is placed in a tube furnace and possible burning events are monitored with thermocouples. If the test specimen burns, the flaming time is also measured.

Class A1 materials are not allowed to experience sustained flaming. For class A2 materials, flaming must stop within 20 seconds.