ISO 97052 Furniture Calorimeter Vandalised Seat
Figure 2: FTT ISO 97052 Large Scale Calorimeter with Weight Measurement (Room chamber on left not included in standard configuration)
Courtesy from the Shanghai Fire Research Institute
According to EN 455452, the burning behaviour of passenger seats should be tested on the complete seat, including upholstery, head rest, seat shell and arm rest. In addition, the seat shell and any vertical faces of the arm rests should also be tested in relation to fire integrity. In order to determine MARHE, a complete seat assembly should be tested using the ISO 97052 as a furniture calorimeter.
FTT build and supply the ISO 97052 complete with the appropriate instrumentation package or supply instrumentation to clients wishing to upgrade existing facilities or with a wish to build their own apparatus. In the latter cases we supply a Gas Analysis Console and an Instrumented Duct Insert section. The console is housed in a 19" instrument rack and it contains all the necessary instrumentation to measure heat release rates and other associated parameters.
The Gas Analysis Console contains: • A Paramagnetic Oxygen Analyser supplied with temperature and pressure compensation for primary heat release measurement.
• An Infrared Carbon Dioxide Analyser for use in heat release measurement.
Table 2: Requirements concerning Passenger Seats Requirement set Test method
R18* R21 ISO 97052
ISO 56601: 25kW/m2 ISO 56592: 25kW/m2
R19 R6
ISO 56601: 25kW/m2 ISO 56601: 50kW/m2 ISO 56592: 50kW/m2
• A Dual Stage Soot Filter, Refrigerant Cold Trap, Drying Column, Pump and Waste Regulators for conditioning the sample gases prior to analysis.
• Controls for the smoke measurement system.
• Data logger.
The specification of this instrumentation is the same for both large and small scale calorimeters and can therefore also be conveniently used with the FTT Dual Cone Calorimeter.
Test parameter and unit
MARHE [kW] RHR Peak [kW] MARHE [kW/m2 Ds max CITG
MARHE [kW] MARHE [kW] Ds (4)
VOF4 [min] CITG
* : – during the test, the flame spread shall not reach the edges of the seat surface or the backrest; – during the test, the flame height above the highest point of the seat surface shall not exceed 1,000mm; – if the peak heat release values are too high for test equipment safety then the product is not compliant.
HL1 75
]
350 75
300 1.2 75 90
600
1200 1.2
Maximum threshold HL2 50
350 50
250 0.9 50 90
300 600 0.9
HL3 20
350 50
200 0.75 50 60
150 300 0.75
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EN 45545-2:2013 – NEW F I R E C LASSIFICATIONS AND FIRE TES T METHODS FOR THE EUROPEAN RAILWAY INDUSTRY
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