EN 16989 Fire behaviour test for a complete seat
The Calorimetry system for complete seats used in railways, in accordance with EN 16989, provides a means of determining the burning behaviour of a rail vehicle seat design using a set of complete seats prepared and tested according to the procedures. It also sets out a standardized procedure to assess a seat’s potential for vandalization.
The test seats are subjected to a 15kw propane-flued ignition source under an exhaust hood with a well-ventilated condition. The measurement to be made include the heat release rate (HRR), maximum average heat release (MARHE), total smoke production (TSP), and flame height.
EN 16989 Test Equipment consists of
• Calorimetry Measurement System containing a test room, collection hood & ducts, Instrumented duct, mass flow controller, burner and mass flow controller for calibration, data acquisition system, gas concentration analysis system, and windows operating software.
• Instrumented duct, including pressure probe, thermocouples, sampling probe, and optical measurement unit.
• The pressure probe is an ISO 9705 standard bi-directional probe, made of stainless steel, connected to the pressure transmitter through a Teflon tube.
• Pressure transmitter installed in the integrated collection section, short-range accurate detection of pressure changes, range 0-250 Pa, accuracy ±2.5 Pa, T90 response time less than 1 second.
• Three K-type thermocouples to measure the pipe temperature, diameter 0.5mm, and meet the requirements of EN 60584 armoured insulated K-type thermocouples.
• Stainless steel probes for quick disassembly and easy cleaning.