NF X 70-100: Toxicity Test Apparatus
The test apparatus and conditions for this method are described in NF X 70-100-2 with additional gas analysis information provided in EN 45545-2. The exposure conditions of the test specimen in the tube furnace are generally set at 600°C, a fixed ventilation condition which represents a developing fire condition for railway products.
The NF X 70-100 is used when the CIT for a product on a railway vehicle is required for a non-listed products, e.g. minor mechanical components. Products with large areas or significant surface areas; e.g. interior walls, floor coverings, seat backs and coverings used the EN ISO 5659-2 with FTIR.
The test conditions specified for use when performing EN ISO 5659-2 or NF X 70-100-2 depend upon the application and position of the product on the railway vehicle. The conditions selected are representative of fires that may impact on the railway product, during either the developing stages or the developed stage of a fire inside or outside the railway vehicle.
