ISO 9705 Flammability Testing Equipment Physical Room Fire Corner
Fire Test Device
Product introduction
This part of ISO 9075 specifies the test method to evaluate the
reaction of wall and ceiling products to fire when installed at the
surface of a small room and exposed directly to a specifiled
ignition source. The test represents a fire scenario, which starts
under well-ventilated conditions in a corner of a specified room
with a single open doorway.
Tests performed in accordance with the method specified in this
part of ISO 9705 provide data for the early stages of a fire from
ignition up to flashover.The method does not evaluate the fire
resistance of products.
The method is not intended to evaluate floor coverings. This method
is not suitable for sandwich panel building systems, pipe
insulation and facades for which specific ISO standards (i.e. ISO
13784, ISO 20632 and ISO 13785,respectively) are available.
Standards
ISO 9705,GA111
Technical Parameters
- 19-inch instrument frame containing oxygen, carbon dioxide, and
carbon monoxide analyzers
- Oxygen Analyzer is used to measure the oxygen concentration in the
gas by measuring the change of paramagnetic pressure. Response Time
(T90) 3.5 s, internal signal processing time of 1 s, Pressure
sensor (internal) 50~200 kPa, 0 point drift the minimum range on
the nameplate 0.5%/ month, measured value drift the current
measurement range of 0.5%/month, repeatability error of the current
measurement range of 1%, minimum detection limit of the current
measurement range of 1%, linear error of the current measurement
range of 1%
- Carbon dioxide analyzer and carbon monoxide analyzer are
non-discrete infrared type. The principle is based on that the gas
molecules have a specific infrared light absorption band and single
beam alternating infrared analysis method is used. The minimum
detection limit is 1% of the current measurement range, the linear
error measurement is within ±1% of full scale, the repeatability is
less than ±1% of the minimum range on the nameplate, and the
response time (T90 time) is approximately equal to the sample flow
rate. Less than 30 seconds at 1.2L/min
- Oxygen Analyzer range for 0-25%, Carbon Dioxide Analyzer range of
0-10%, carbon Monoxide Analyzer range of 0-1%
- Temperature controller is used to control the cold trap. During the
test gas extraction process, sufficient moisture is removed
- Gas sampling double-headed pump that can transfer gas samples
produced during combustion to analyzers about 30 meters away
- Data Acquisition System (including Operation and Control Programs)
- Acquisition board with 16-bit wide gain range, analog and digital
I/O board
- Thermocouple type: K type, range: ambient temperature ~1500 degrees
Celsius
- Data acquisition system can be collected through the installation
of data logger or field pointer
- The data acquisition system consists of the following parts:
- Bit thermocouple input module, 16-bit analog input module, digital
input/output module, 12-bit analog output module, 4 and 8 slot
backplane, connector, network module, power supply 24V 5A DC
universal power input, data acquisition computer, printer
- The test report must include the following test data: Max HRR
(0~2min), Max HRR (0~10min), Max HRR (0~12min), Max HRR (0~20min),
Max SPR (0~2min), Max SPR (0~10min), Max SPR (0~12min), Max SPR
(0~20min), Average HRR (0~10min), Average HRR (0~12min), Average
HRR (0~20min), Average SPR (0 ~10min), Average SPR (0~12min),
AverageSPR (0~20min), heat flow-time curve of the geometric center
of the floor; mass flow-time curve, total heat release rate-time
curve, carbon dioxide CO2 production of the flue gas duct , Carbon
monoxide CO production, smoke production, detailed description of
fire development status, calibration results, surface
temperature-time curve, mass flow-time curve through the doorway,
vertical temperature distribution-time curve through the doorway,
through the doorway Convective heat-time curve, whether it
generates flash light, time to reach flashover
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