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A flame arrester is basically a heat exchanger in front of the tubulure. It conducts the heat of flame to some other place (to the liquid and/or the container especially if the container is built from a metal material), thereby extinguishes the flame before getting into the container.

I built a simple flame arrester with a tea strainer in front of the bottle and dumped some drops of denaturated alcohol into the fire. A controlled experiment demonstrated that the flame arrester works and if there is no flame arrester, an explosion is inevitable.

However, I don't think I should use this approach in a real-life situation because I can't know how much flame the arrester could arrest in a real case.

How can I test a proper flame arrester if it is produced correctly?

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  • $\begingroup$ Not something you should be experimenting with... aka a Darwin Award application... $\endgroup$ – Solar Mike Feb 9 at 17:06
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    $\begingroup$ That was funny :D But, that can't be true. It should be possible to test a flame arrester, at least there should be such a test setup in its production facility. $\endgroup$ – ceremcem Feb 9 at 17:32
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    $\begingroup$ You will probably find an ASTM Test Standard for flame arrestors, as they are used throughout industry and on things like generators and motorcycle exhaust systems. $\endgroup$ – niels nielsen Feb 10 at 4:32
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    $\begingroup$ DIN EN ISO 16852 Flame arresters - Performance requirements, test methods and limits for use. I don't have access to this code, you likely will have to purchase it. $\endgroup$ – mart Feb 10 at 15:59

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