Vertical flame tester operating procedures
First, the main purpose of vertical flame tester
It is mainly used for the determination of flame-retardant properties of flame-retardant clothing, flame-retardant fabrics, safety nets, safety belts, etc., as well as the review of labor safety certification and industrial production licenses. The equipment has a high degree of automation and is easy to operate and safe. The vertical flame tester includes the vertical flame tester, vertical burner, and vertical flame retardant tester.
Second, the main features of the instrument
1 , electric heating wire automatic ignition
2 , burner automatic timing, positioning
3 , ignition time 0 to 99.99 seconds arbitrarily set, continue burning time, smoldering time are automatically recorded, digital display
4 , flame height adjustable
5 , "push-pull" sample holder fixture
6 , with a combustible gas leak alarm device
Third, the main technical indicators
1. The inner diameter of the TedeTal type for the burner is: 11mm ; Tilt angle: > 50
2. Burner motor power consumption: 6W
3 , ignition timing: 0 to 99.99 seconds arbitrary settings , international use of 12 seconds
4 ã€Continued burning time and smoldering time timer: 0 to 99.99 seconds, accuracy: ± 0.01 seconds
5 , flame height measurement device: ruler height 40mm
6 , the use of gas: propane, butane, liquefied petroleum gas
7 , textile sample size: 80mm × 300mm
8 , power supply: AC220v ; 50Hz ; 50W
9 , the combustion chamber size: 329 × 329 × 767 (mm) 3
10 , weight: about 20K
Fourth, applicable standards
National Standard: GB/T5455-1997 "Textiles - Combustion performance test - vertical method", GB 8965.1-2009 "protective clothing flame retardant protection  Part 1 Flame-retardant Clothing, GB/T6096-2009 Safety Belt Test Method, GB 5725-2009 Safety Net
V. Random accessories
1 ã€Measure damage length weight 1 set ( 5 )
2 , sample clip 1
3 , Burner flame nozzle 1
4 , 1 power cord
VI. Preparation before the test
1. Prepare test specimens.
2. Prepare test gas sources.
3. Connect the gas source to the instrument to ensure that there is no air leakage from the joint.
4. Connect the laboratory power supply and the instrument with the supplied power cord.
5 , the textile sample into the sample frame clip, the lower edge of the sample should be flush with the lower end of the sample clip.
Seventh, operation steps
1 , open the gas source valve.
2. Turn off the front door of the combustion chamber and turn on the instrument (power switch " 1 " side down), the power indicator light.
3. Press the “Reset†button to return the burner to the ignition position (if there is no response, the burner is already in the ignition position. Please proceed to the next step).
4. Press and hold the “Ignition†button to light the burner (Note: Keep the “Ignition†button pressed during ignition). After ignition, release the "Ignition" button. If it is difficult to ignite, adjust the "Flame adjustment" button (reducing the combustible gas flow clockwise and increasing the combustible gas flow counterclockwise). Pay attention to adjust the air flow while holding down the "Ignition" button.
5. Open the front door of the combustion test box and place the flame height ruler (height 40mm ) in front of the flame by hand. Adjust the "flame adjustment" knob to adjust the flame height to 40mm ± 2mm . After the flame is stabilized, remove the flame height ruler. Hang the specimen vertically with the specimen holder in the center of the box and close the door.
6. Click the "Start" button, the burner is moved to the sample suspension position (this time should be within 1 minute from the time the sample is taken out of the sealed container), and after 12 seconds (or 10 seconds), the burner is stopped. Gas and return to the "continuation time" automatically timed.
7. Observe the condition of the sample in the test chamber. At the same time when the continuous combustion is over, press the button of “Continuous stopâ€. If there is no renewed ignition, press the button “Continue stop†directly to automatically time the “smear timeâ€. When the smoldering is over, press the “Smoke Stop†button once, then record the continued burning time and the smoldering time, and record the phenomenon that appears during the test.
8. Open the front door of the combustion chamber and remove the specimen holder, remove the specimen, and then use the specified weight according to the weight of the fabric per unit area to determine the length of the damage (see the standard).
9. Press the “CLEAR†button, the instrument will return to the initial state, open the test chamber door, remove the debris from the cabinet, open the ventilation equipment, exhaust the smoke and gas in the test chamber, and wait for the row to finish, close the row. Wind equipment, this test ended.
10. To continue the test, repeat steps 3-9 . If it is not needed, turn off the power (push "power switch" position " 0 "), then unplug the power cable, turn off the air source valve, and the test is completed.
VIII. Precautions
1. The instruments and gas cylinders must be kept strictly free of pyrotechnics, eliminate fires, and extinguish the smouldering specimens after the test. Carbon dioxide and other fire fighting equipment should be installed.
2. The gas pipeline must be inspected carefully before starting up. Gas leakage is strictly prohibited.
3 , operators should wear protective clothing, protective gloves, so as not to be hand stabbed or burned.
4. This test is best carried out in a fume hood to prepare for immediate removal of harmful gases and replacement of fresh air.
5. When the test is over, the gas source should be turned off. After the gas in the tube is burned out, turn off the power.
6 , the instrument is equipped with gas alarm device, such as gas alarm ring, please check whether there is leakage.
7. Turn off the power supply and air supply immediately after the alarm of the gas alarm, and restart the machine after troubleshooting.
8 , the instrument must have a good grounding!
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