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How to perform the combustion performance test

In the production of materials burning test is inevitable, remember the recent occurrence of high-rise fire incident, because the material is very poor flame retardation led to a lot of people were killed, the flame retardant materials are some industrial products will check the project, materials The flame retardancy tester is mainly in the specified test conditions to test the burning performance of the specimen to determine the flammability of the material. The following describes the material flame retardant tester product parameters:The main application areas:Plastic, foam, film, textile, paint, rubber, automotive interior parts, electrical and electronic products.

Test principle:The flame retardancy of the material refers to the ability of the material or article to undergo flame burning under specified test conditions. It covers some of the characteristics of whether it is easy to ignite, and the ability to maintain the ability to burn. After years of development, the flame resistance test has formed a variety of standards, as the industry is very focused on the detection project.Testing purposes:Through the customer to provide samples of the combustion test, according to the results of the combustion of the corresponding rating, to help customers to product quality control. Flammability rating is one of the most important safety features that are essential for many certifications and are mandatory for many countries.Test criteria:Plastics - Determination of combustion performance - Horizontal and vertical methods GB / TElectrical and electronic products - Fire hazard test GB / T 5169.16-2008Test Flame 50W Horizontal and Vertical Flame Test MethodGeneral requirements for the safety of information technology equipment GB 4943.1-2011.

Flame resistance test steps:Sampling → pretreatment → start adjustment fixture height, flame height, gas flow, etc. → test and record the results → corresponding to the standard HB rating.HB grade materials should meet one of the following criteria:Remove the ignition source, the material is not visible flame burning;After the ignition source is removed, the sample has a continuous flame burning, but the flame front end does not exceed 100mm mark; if the flame front over 100mm marking, but the thickness of 3.0mm ~ 13.0mm, the linear burning rate of not more than 40mm / Min, or thickness of less than 3.0mm when not more than 75mm / min; if the test thickness of 3.0mm ± 0.2mm sample, the linear burning rate does not exceed 40mm / min, then down to 1.5mm minimum thickness, it should Automatically accepted for this level. 

HB40 grade material should meet one of the following criteria: remove the ignition source, there is no visible flame burning; remove the ignition source, the sample continued flame burning, but the flame front does not reach 100mm mark; if the flame The front end of more than 100mm marking, linear burning rate of not more than 40mm / min.HB75 level: If the flame front over 100mm marking, linear burning rate should not exceed 75mm / min.Through this series of tests on the test piece, the HB properties of the material were obtained

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