Non Combustibility Furnace - edit laser

Non Combustibility Furnace

The combustibility tester (NCT for Non-Combustibility Test) is designed for construction products in the building industry market. It is the one of five test materials devices classement in Euroclasses.

This test is related to the top of the rank (classes and A1/A1fl A2/A2fl).

This test has been developed to determine the low contribution to fire (small quantity of heat and flame) made by a material considered as incompletely inert when subjected to a temperature near to 750°C in a small test oven. (ISO one).

The European standard concerning the test standard reference is EN ISO 1182 from 2002 with French standard (EN ISO 1182).

 

 

Equipment

The apparatus mainly consists of a furnca, a specimen holder and an equipment that permits to introduce an holder sample in the furnace tube. Thermocouples have to be provided in order to measure the furnace and oven temperature and another temperature sensor in order to control the intern temperature of the furnace on his central axis.

Test principle

It is a reaction to fire test and more precisely a combustibility test (low or non-ignitability and little or no persistence of flame).

In a combustion chamber heated to about 750 ° C, a cylindrical specimen is subjected to a vertical position to the internal heat of the oven without affecting other self ignition flame.

At the end of the test, we write for each sample test mass loss, the possible existence of persistent flames and duration as well as the rise in temperature of the oven.

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