Alcohol blowtorch burning tester is suitable for the specification and standard of burning test using alcohol burner. Developed specifically for the coal industry. Compliance with the standard: GB16413-2009 Specification for safety performance test of FRP products for underground coal mines, MT 113-1995 General Test Method and Judgment Rules for Flame Retardant and Antistatic Properties of Polymer Products Used in Underground Coal Mines 4.1, MT 181-1988 "MT 181- 1988 Code for Inspection of Safety Performance of Plastic Pipes Used in Coal Mines
Steps
1. Confirm that the combustion system is in a safe and stable working condition.
2. Draw a marking line at 280 mm from the ignition end on the wide surface of the specimen.
3. Place the test piece into the sample holder and adjust its position to match the standard requirements, and then clamp (ie the sample should be hung vertically, the minimum end of the sample is 50mm away from the center of the alcohol burner's fire blasting port, as shown in the figure. Show)
4. The fuel level in the container during the test should be kept within 600±20mm from the alcohol burner port (as shown).
5. Turn off the control valve of the burner and the alcohol container, and add appropriate amount of alcohol to the preheating tray of the alcohol burner (add 1/4 of the preheating container. When adding fuel to the preheating tray, you must use a straw. Anywhere outside the hot plate). Open the valve of the alcohol container, confirm that the alcohol container has no leakage (that is, the consumption of the alcohol container is zero), ignite the alcohol in the preheating plate, and when the fuel in the preheating plate is burned out, immediately open the control valve of the alcohol burner to ignite Blow the lamp and adjust the flame height to 150 ~ 180mm.
6. The sample is located in the center of the flame, and its leading edge is consistent with the outer edge of the flame.
7. During the test, the sample is burned in a flame. The time of burning the sample is related to the thickness and softness of the sample. The burning sample shall prevail, the shortest time is not less than 5s, and the longest is not more than 60s. After burning, the alcohol burner that was extinguished was removed, and from this time, the flaming burning time and the flameless burning time of the sample and the drip were measured.
8. Test results
The following test results should be recorded:
(1) The flaming burning time and the flameless burning time of each sample and the dropping matter are single values;
(2) the flame extension length of each sample;
(3) the arithmetic mean of the flaming combustion time of six samples and drippings;
(4) the arithmetic mean of the flameless burning time of 6 samples and drippings;
Precautions
1. When adding fuel to the preheating tray, please note that fuel should not be allowed to flow anywhere outside the preheating tray.
2. Fireworks should be strictly prohibited in the storage place of instruments and fuel bottles to prevent fire.
3. The fuel line should be carefully checked before starting the machine, and fuel leakage is strictly prohibited.
4. Operators should have protective clothing and protective gloves to avoid burns or burns on their hands.
5. The working room should be equipped with an exhaust fan to remove harmful gases and replace fresh air immediately after the test.
6. If the instrument is not used for a long time, the fuel should be taken out.
7, the instrument must have a good grounding wire!
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