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2022-06-10 0 Views

ISO/EN 2406-2008 fully automatic oxygen index measurement

IOS 2406-2008 fully automatic oxygen index measurement instrument

Release time: 2021-07-15 Hits: 876

Test principle : rqXTextile Testing Instruments, Testing Equipment Manufacturer

In ISO 4589-2, both rigid materials and flexible materials can be tested in specific fixtures. The fixture is installed in the transparent combustion cylinder of the oxygen and nitrogen mixed gases flowing upward by layer flow. After the sample status is adjusted, room temperature test is usually performed. When the top surface was ignited, the flames came into contact with the top surface of 30s for a long time, and every 5s were removed to observe whether the sample was burned. This ensures that the temperature of the sample will not be too high, and get a lower OI value. When the diffusion type is ignited, the flame contact test -like vertical side is about 6mm. In the film test, the film is wrapped around the pole at 450 °, the end of the sample is fixed to the end of the pole and the top is 20mm. rqXTextile Testing Instruments, Testing Equipment Manufacturer

In ISO 4589-3, the material test method is the same as ISO 4589-2. It was performed in the combustion cylinder that passed into the heating airflow. rqXTextile Testing Instruments, Testing Equipment Manufacturer

At the beginning of the test, the samples and fixtures should preheat 240s ± 10s in the balloon, so that the temperature can reach a balance before the test. The time for the flames is the same as the ISO 4589-2. rqXTextile Testing Instruments, Testing Equipment Manufacturer

Measurement device: rqXTextile Testing Instruments, Testing Equipment Manufacturer

There are many ways to measure oxygen concentration. You can measure the flow meter meter, or

Oxygen analyzer measurement . Before use, calibrate the flow meter and use the standard gas calibration oxygen analyzer. Check the entire instrument according to the time interval specified by ISO4589-2 to ensure that the system is not leaked. Can't reinstall instruments at will. rqXTextile Testing Instruments, Testing Equipment Manufacturer

Through the judgment of/fail 3) Given a judgment of evaluation through failure when the prescribed temperature, and is widely used to verify whether satisfactory performance is obtained at extreme temperature. This method is only applicable to the test of the material level. When the unknown synthetic material test is higher than the burning temperature, and observe whether its apparent performance is satisfactory, it is cautious. The following data is tested by the ISO 4589-3 method to test the known material with a burning temperature higher than 300 ° C. rqXTextile Testing Instruments, Testing Equipment Manufacturer

1. Technical parameters: rqXTextile Testing Instruments, Testing Equipment Manufacturer

rqXTextile Testing Instruments, Testing Equipment Manufacturer

The oxygen index measurement is based on national standard GBA kind of instrument manufactured by technical conditions specified in 2406-93.It is used to determine the concentration (volume percentage) of the oxygen (volume) required by the polymer during the combustion process.The oxygen index value of the polymer is that the substance can maintain 50 mm or 3 minutes after the substance is burned The volume percentage.
2. Product use: rqXTextile Testing Instruments, Testing Equipment Manufacturer

This instrument has a simple structure, convenient operation, canAs a means of identifying the combustion performance of polymer, it can also be used as a related research tool, so as to get a good understanding of the combustion process of the polymer.This instrument is suitable for the combustion performance of plastic, rubber, foam and other materials. Its measurement results are accurate and reproducible. It is an indispensable testing equipment for research and production of flame retardant materials. rqXTextile Testing Instruments, Testing Equipment Manufacturer

3, basic specifications: