CPAI_84 Tent Flame Retardant Tester
YY-84cpAl tent flame retardant tester according to CPAI_84_1995
account tent flame retardant test. Vertical method of the standard
provisions of the simulation test items.
YY-84cpAl tent flame retardant tester is to install the sample on
the stainless steel sample clamp, hanging in the test cabinet, the
lowest point of the sample is 20mm away from the upper end of the
fire source tube; adjust the fire source height to 38mm (±3mm) (the
test gas is methane); start the tester, make the fire source move
to the sample directly below, burn for 12 seconds, remove the fire
source, record the renewal combustion time; after all the burning
is over The tent flame tester is suitable for testing the flame
resistance of tent top, bottom and outer wall materials.
Specimen size; bottom material: 230mm×230mm (±3mm) four pieces in
warp and weft direction
Wall and top material: 90mm×300mm (±3mm) warp and weft direction
four pieces
Burning flame height; 38±2mm (height adjustable)
Ignition time; 12s (preset adjustable)
Continued combustion time; 1s ~ 999.9s ( digital display, can be
manually suspended to maintain the digital display )
Ignition nozzle angle; vertical method
Ignition nozzle caliber; by 5mm inner diameter barrel and fixed
throttle hole distance of 75mm +/-6mm
Burner; width 320mm × depth 320mm × height 760mm
Combustion gas; methane gas purity should be 97% or more
Igniter inlet air pressure; 2.5psi+/-0.25Psi (adjustable)
Test power supply; 220V 0.5kVA
Standard lamp pipe diameter; about 1.6mm, distance from the edge of
the burner 3mm, standard lamp flame length 3mm
Cabinet; to provide a separate space for the test
Viewing window; transparent viewing window for easy observation of
the test process
Fixture fixing block; fix the specimen clamp to keep it in the
middle position vertically
Specimen holder; fixture to hold the specimen in place
Flame measuring tape; flame height measuring tape
Ventilation port; to provide the necessary air circulation for the
combustion test
Control mode; using ordinary electromechanical control, easy to
operate
Flame control valve; adjust the gas flow to make the flame reach
the required height
For the Flooring material, CPAI 84 provides for horizontal
combustion determination, the test procedure is as follows.
1) Place the test cabinet in a fume hood with the brace sample
frame inside the test cabinet.
2) Pierce a 6 mm hole in the center of the test sample.
(3) Place the sample on the frame, make it level, and then place
the ignition source methenamine tablet on the sample, which is no
more than 3 mm away from the sample's hole.
4) Ignite the methenamine tablet and observe the test.
5) When all burning stops, ventilation, test the length of damage
to the sample and record the data.
Test result determination.
When the test sample is tested with the method in Part V of this
standard, either as is, or waterlogged or aged samples, the length
of damage of any one test sample cannot exceed 72mm.
> For wall and top materials, CPAI 84 provides for vertical
combustion determination, the test procedure is as follows.
1) Mount the sample on a sample holder and hang it in the test
cabinet with the lowest point of the sample at a distance of 20 mm
from the upper end of the fire source tube.
2) Adjust the fire source height to 38mm (±3mm) (the gas used for
testing is methane).
(3) start the apparatus, so that the fire source moved to the
sample directly below, burning 12 seconds after the removal of the
fire source, record the renewal of combustion time; (4) after the
end of combustion, remove the sample, measure the length of damage
to the sample.
Test result determination: When the test sample is tested with the
method of the sixth point of this standard, either the original
sample, or the sample that has been flooded or aged
(a) any test sample can not exceed 4 seconds of continued
combustion time, the average continued combustion time of not more
than 2 seconds, the combustion process broken down or dripping off
the part falling to the bottom of the test cabinet can not continue
to burn.
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