strdh810 This is a topic that many people are looking for. bluevelvetrestaurant.com is a channel providing useful information about learning, life, digital marketing and online courses …. it will help you have an overview and solid multi-faceted knowledge . Today, bluevelvetrestaurant.com would like to introduce to you MIL-STD-810 Test Method 508.6 Fungus Jim on Engineering, Episode 73. Following along are instructions in the video below:
“Jim shaw here from crystal group. Going to talk a little bit. Today about mil mil std 810 method 508. Which is fungus.
There s a couple of ways to fungus testing. The first and foremost the one that s really outlined in the procedure this test by the way. Only has one procedure in it so it s kind of nice..
It s a little bit different from some of the other mil std 810 testing. But this has one procedure and it s essentially subjecting. The materials that you re putting together in an electronics package or any other kind of package to certain spores of different kinds of fungi and there s a european strain and there s a us. Strain.
And so there s a variety of different ways that you can do this. But what are you looking for you re nessentially looking for the breakdown of the material that you re packaging due to either the material being nutrient to the spores or the excretions from the spores being acidic. So there s two kinds of failure modes..
There one you re feeding the spores and changing the material properties. The other one is the spores are excreting material and changing the material properties this can be a problem for electronics and so a long time ago. There used to be paper. Wrap capacitors or cellulose used in types of circuit.
Boards and all of that s changed. Now and most everything is compliant with being non fungus nutrient. One case where the industry..
Really hasn t nchanged is pbc that is one of the places. Where you have to do something special to get the units to pass for mil std 810 508 and so normally what you can do is you can just take a board and using conformal coating you can pretty well isolate. Any kind of components from nutrient growth. It is a 28 day test and so that does mean that you can impact the number of qual units that you need or your qual test schedules you have to keep that in mind when you re doing the planning.
So it is a test that s done under high temperature high humidity. It s kind of intended to simulate jungle conditions. If you will and so if it s not in your schedule or your budget to actually do testing for the actual fungus testing..
There is a way to do this with analysis or qual by analysis and so that really requires that you access a database that basically allows you to look up each and every part that s in your system. And then just verify that it s non nutrient supporting one of the standard approaches to decontaminating the units after they ve been exposed to the fungi is just a common soap and hot water solution or actually the spec recommends lysol as a possible method to decontaminate the units so keep that in mind when you re looking at packaging electronics and those are some of the things you need to look for thanks a lot. ” ..
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