Let's talk about ultrasonicing boards safely, re: jayztwocents
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- Äas pĆidĂĄn 11. 06. 2024
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I know it mustve been pretty horible having costumers breathing down you neck waiting for their cleaners but what steve did to make sure they got where they needed to is respectable
People wonder why I hesitate on moving out of state. You can find employees anywhere; you can't find *these* employees anywhere. There's more to a company than a procedures manual and a search engine ranking. Starting fresh with a bunch of people from Craigslist or ziprecruiter, it would be an unrecognizable company. The people help make this place the best rated board repair shop on google maps!
@@rossmanngroup I like your videos, but I wonder what exactly you think of jayztwocents, since I have watched 2 videos, one on soldering a graphics card, and this one on ultrasonic cleaning... Actually, I was watching jayztwocents and he mentioned your video so I figured I would come watch it... I know that most of your exasperation with Jay is probably, not an actual personal dislike, more rather, cringing, at doing something wrong, but you do however, almost make it sound like you don't like him much, even if that's not how you intended it to sound on either video... I mean, he never said he was an expert, at any of the stuff you critiqued, and in fact he practically calls himself an idiot at those things, so I don't think giving him or any noob, the 3rd degree is something I would agree with, although I do agree that some of these things in general, are the information we need to know, to help save people from getting hurt doing something for the first time
Both Arthur Crosby and Royal Zayn are scammers... I have seen many accounts posting the exact same thing on many different CZcams videos... The posts are 100% identical, aside from changing the website or app you need and inserting a different social media to "Hack"... The only thing that might get hacked is YOUR account, so don't fall for it...
Louis, I'm an electronics engineer from Germany and I can genuinely say that I'm still learning crucial things watching your videos... besides the NY real estate market :)
Thank you!
Rossmann repair group's engineering is the world's finest!
As a side note, "Explosion Resistant" when applied to products like this doesn't just mean that it will survive an explosion. Often this means that the product is engineered in a way to limit sources of ignition from the product itself but not from outside sources. This is important because even if you purchase an explosion resistant cleaner, if you choose to use it in a poor environment, say one prone to static electricity, you can still ignite the fumes and blow yourself up.
This! Also I think 'blastproof' is a terrible name since I've learned about it in engineering school.
This right here. It's an electrical designation for areas that will or are likely to be installed in an environment where sources of ignition could cause fires or explosions (classified areas, in this case Class I group D).
An explosion proof cleaner on its own would be useless without the rest of the electrical system being compliant. This would mean explosion proof outlets, light switches, lighting, and the rest of the equipment in the area being listed for installation in the prescribed environment.
For sure, explosion proof cabinets in chemical plants, while 1" thick and held sealed with machined surfaces and tons bolts they aren't about surviving explosion, they are about keeping explosive atmospheres out of arcing devices. Most are nitrogen or clean air purged and shut down if this purge pressure isn't detected.
Exactly, especially because the ultrasounds themselves will not be able to light the fluid up. (and it remains true even for much more flammable liquids)
Yeah. When it comes to handling pure isopropanol grounding and using static dissipative containers and equipment is very important. Plus the fumes are nasty
Jay *Does anything*
Louis "This is what he did wrong."
Oreo > Louis at component level board repair.
Hurray! I love Oreo. He's the best. So glad to see him involved.
@@JimAllen-Persona Correct. He can't climb up to that chair on his own.
â@@rossmanngroup He can definitely jump up there by himself!
@@rossmanngroup why? Is he ill or very weak?
I worked in a metallographic lab for 6 years doing testing and process development and improvements for preparation and methods for an aerospace manufacturer.
The simple decision to use diluted dishsoap, prior to and after etching with a distilled water wash improved the clarity in the microscope 100X fold from the regular IPA/Methanol wash everyone was accustomed to. Not only did this affect our ability to assess the mounts, the "Surface defects" and HAZ layers from EDM and Laser processing suddenly dropped by approximately 2-5x depending on the process.
Previously, what the guys were assessing was the layer of contaminants where the solvents were the last to dry, near the edges of the samples where the liquid pooled. The solvents were not washing, more moving around and concentrating garbage leading to false positives for 20+ years that they were running these processes. I've got 6 years of 500x-1500x magnification assessments that back up how horrible IPA, Methanol and Ethanol are for bulk cleaning.
In short, I am huge advocate for diluted dish soap, or any surfactant over the use of alcohol for cleaning. It also has the added benefit of not attacking substrates, plastics, paints, etc.
Ha, nobody at my previous job at a lab was able to read up on how to clean stuff either. We had problems with contamination on samples, and all the equipment was only cleaned by washing it with some solvents. I decided to order some actual high Ph (14Ph) cleaning agent from a chemical supplier, wash the glassware properly an rinse it thoroughly with deionized and very/ultra pure water. You can also get Ph neutral cleaning agents for stuff that doesn't like strong bases.
The difference between dish soap and professional stuff is significant. I tried dish soap, but I was only able with Labwash Premium to get the glassware so clean that after emptying it out the remaining water would not form droplets. Just one even sheet of water adhering on to the glass. That glassware and other equipment was c l e a n.
Also, when cleaning flat samples: Remove the remaining thick film of water with pure nitrogen at a decent pressure. Cleaning that properly is step one to 20nm EBL (that was fun and annoying most of the time)
So true. It's almost like using a material designed for cleaning debris and rinsing it off well (liquid soap) is better than just using an organic solvent. Whowoulddathunkit?
@@jasonfullerton7763 i'd say it all depends what is your goal, if you have contamination that is easily removed by the alcohol, then using it, and then doing a rinse may give you better results
@@f.s.1250 Hah, couldn't use anything that was too far from neutral Ph. It could attack and etch the samples in an uncontrolled manner, or passivate sections of them and effing up the results.
@@bearnecessitits That reminds me of trying to clean aluminum HV parts with high Ph stuff, somehow I forgot that aluminum reacts nicely in that. In retrospect: I could have bought the neutral stuff, I had to get the damned vacuum oil off the few aluminum parts with light gasoline.
I knew this was about Jay before i even read the full title đ
Jay changed his title to "Cleaning a GPU the WRONG way" hahahahahaha.
That's one thing I do admire about Jay. He can admit when he's wrong and even make fun of himself about it.
@@bruwin Amazing how some people can act like mature adults. Even ones that play video games and make toy boats.
@@bruwin Itâs cool he changed title and can admit, might not Iâd right way and was wrong....
Hey, thatâs cool.
Some would delete vid, remove comments &/or like/dislike ratio etc...
AND agree with youđđ»
@@Lazy-Monkey idk man his model boats are pretty insane
@@infernaltotorow Yep. It's true.
As a long time lurker I gotta say I have gained a ton more respect for you with your current direction and your recent willingness to look back and address some of the ways you presented your earlier videos.
Thank you for everything you have done for right to repair and keep up the amazing work.
Oreo, is like, louis got this, i can sleep
You can see he's listening, just in case louis needs some back up.
Oreo is like "I have trouble keeping my own butt clean but I know how to clean a board better than Jason/Jay."
Maybe he was ... drugged. The only way Louis could make him stay in the shot.
...just saying
@@hempbear you are dumb
Oreo is thinking, 'Use an anti-static nylon bristle brush with IPA before cleaning to remove the crud!'
It's so nice to see someone see something that could harm someone, and isn't being done in the most effective manner and rather than shit on them for it, just make a video of why you shouldn't do it in that method and even give a prepared lesson on how to do it better.
A small engine repair channel i watch had a few ultrasonic cleaner videos a while ago, and he fills the cleaner reservoir with water and puts the parts he wants to clean in a plastic jar full of his chosen solvent to keep the ultrasonic cleaner cleaner, and cut down on waste solvents.
But that lowers the efficiency of cleaning for some percentage, does it not, because ultrasonic waves have to go through that layer of plastic?
@@zombiecat7799 yes
Do not use ultrasonic cleaner on boards containing MEMS chips, if possible. We messed up a batch of boards that contained MEMS pressure sensors, so not good for business. They went kaput after we soldered them together and clened boards in ultrasonic.
Same with smartphone microphones, as they are MEMS devices too. If water damage didn't kill them the cleaning surely will, and its a nightmare having to find just the right type for replacement, there's like a million of them.
More and more phones also have MEMS for clock, accelerometer...
I would hazard a guess that submerging any MEMS device in any liquid would be a good way to destroy it.
@@jimmyb1451 certain gasses can damage it as well, like there's news about iPhone getting damaged when near Cryogenic devices like an MRI which use liquid Helium for cooling.
@@xponen But helium will diffuse out again with time, applied science did a video on it
I knew this was coming, oh jay
Same.
Take your meds
Same.
Wow what a crossover! My favorite channel for cat content and real estate advice is giving my favorite channel for desk building and IKEA furniture reviews tips on ultrasonic cleaning! 2020 really is wild!
Oh Jay. Also, if only you guys could see the crazy things we do in our lab. It's amazing it isn't a crater yet.
I'm hoping you have good insurance coverage đ
Beautiful flowers Louis.
I dig the composition with the slimmer chair and Oreo in the background, looks great!
Thanks!
After leaving flying for the Navy, I worked at a 3 letter company at N2S2. Off one of the engineering labs was a wicked ultrasonic cleaner that used heated liquid Freon ( not all Freon is gaseous) in an ultrasonic environment. About 10â above fluid level was a set of refrigerant coils that would condense vapor and it rained into a tough that lined the perimeter of the tank and was recirculated back into the tank. The liquid was constantly heated and filtered. All circuit boards were run through this device to remove any flux or oils. You have to for any items going into oxygen rich environments. Iâve never seen anything that worked as well. Did an amazing job on carburetors too. It was a commercial product and I was told it was used heavily on equipment that used liquid toners. Iâve never seen one since but have always hoped to see one for consumer level work.
that sounds wicked dangerous and poisonous. would NOT want that being handled by a consumer in their home
@@redtails Of course it was dangerous, we werenât dealing with teddy bears. But the downside of having contaminates in the enclosure was unacceptable and more dangerous. Many dangerous things are safe in the right hands. Or, you can live in fear.
@@ramosel I was specifically commenting on your last sentence, about your hope to see one for consumer level work. this made me comment on how toxic and dangerous it is and how unsuited it is very random consumers, despite how safe it is to operate in a specially designed work space in expert hands.
@@redtails Oh, you are right... sadly. Unfortunately we live in a society where pearl clutching and hand wringing has become the norm... the nanny state. It's just a paradigm I don't ascribe to. If people are stupid enough to get in over their head, the consequences should be on them.
Came for the rant...Stayed for the hard working Oreo cat!
đđžđ
Thank you for making this video and for providing a better solution than alcohol.
Thanks Oreo. Always love your insight into this type of thing.
It's easy to take the flammability of IPA for granted. I have had a few wake up calls where I realized something I was doing or about to do with it was a bad idea. It is best to keep bulk quantities stored safely in approved cabinet, and keep only what you need out on the bench with fire extinguisher nearby. In addition I always keep a small spray can style extinguisher within reach on my bench for fire that doesn't warrant discharging a real fire extinguisher.
Thank you Louis for educating us.
You tricked people into learning how to do ultrasonic cleaning correctly by making people think was going to be a hit piece on Jay but instead that was a highly informative instructional video.
dude good for you coming back to your older stuff and setting it straight.
i can say you are setting an example that is superb. thanks for that. just like the passionate nature can be mistaken by some and you come correct your salty vid. good on ya bud
Oreo finally in frame for more than 10 seconds. Good.
I love the honesty of Louis.
Louis and Jay should definitely do the collab. It would be the hell fun episode.
The minute Jay posted that video, I knew you were going to respond!
Nicely done, Louis :-) Concise & informative.
I noticed you're embracing the power of your kitteh and use it to your whim. I'm proud nyan.
This video was very useful, thanks Louis. I fiddle with retro computers as a hobby, and this was good info.
Top 10 bromance between 2 youtubers.
*BRUHmance
Worked as an Electronics Eng. for the best part of my 57yrs
When using Ultrasonic I have always used one of 3 fluids and have always had great results
1) Demineralised water (distilled water) or 2) Demin water with dish detergent or 3) Demin water with Orange based Concentrate cleaner
I choose based upon the type and amount of cleansing required
Jay is the kinda guy who finds an idea for a video, then a day before the shoot he researches everything.
I was really hoping for this!!! Thanks dude!
Love your videos Louis!
Since no one else seems to want to say it . . . . "Thanks for being a stand-up guy and openly admitting that a video you posted may not have been the best presentation and explaining rationally why you presented it the way you did & being willing to take the heat for being a bit salty at times". Knew there was a reason I continue to watch your videos consistently.
Jay did it that way because Vince "Kingpin" Lucido probably told him to.
I watched a video where kingpin explained his ultrasonic cleaning process. Kingpin only recommended using alcohol for cleaning the cards after LN2 overclocking. They use vaseline to protect the cards from moisture.
Great video Louis!
Please thank Oreo for the excellent information.
Thanks for sharing. I used ultrasonic cleaning of boards. Though I used alcohol a lot when I worked in military repairing such, so I understand all the issues.
Iâm just going to say I like how you switch seamlessly between freedom units and metric.
Jay is he type of guy to do a podcast with that barnacules dude... let that sink in and think long and hard about whether you should listen to anything he says ever again
Saw a vid on ultrasonic cleaning where to save on cleaning fluid : The object to be cleaned was placed into a ziplock bag or a glass jar with a quality airtight lid or a food quality plastic container with an airtight lid then filled with the cleaning fluid - then container was placed in ultrasonic tub and filled with ordinary water up to the recommended fill level- saved heaps in cleaner fluid and kept tub clean : even saw gasoline used this to way clean small delicate engine parts .
What most people donât understand about alcohol is that itâs major function is to leach water out of anything it comes in contact with. The best example is Dry gas additive for cars. When you pour it into your gas tank, it grabs the water and keeps it from making it into the motor. Fuel system CLEANER is something completely different.
2:20 Pretty cool that your biz is still âNo Fix, No Feeâ; as a business plan etc....
Not many places that have this mentality, and believe every repair around me....will charge an âinspectionâ fee of at least (minimum fee) of $50 to take device, give a ticket/invoice etc...and see whatâs up. Then get a call/email detailing issues and repair process with link to pay. After you pay, they start the repair.
So, cool that you still stick with your original business model and work ethicsđđ»đđ»
Lewis is really mellowing as the years go on. It's good to see.
Hello, Mr. Rossman;
Thank you for all you do.
EXCELLENT!
Really nice job!
I left some similar info in the comments for JTC.
Obviously you're far more knowledgeable than I so your comments are appreciated.
Have a GREAT day, Neighbor!
Thanks for the ultrasonic cleaner revision.. as you always teach us something new in each video... Reason I bought an Atten ST-862D from your store... I was unable to afford the Quick.. just outside of my budget..
I believe in supporting small businesses in these times.. I had a business during the original Sars epidemic... it crashed during it because of cold chronic bronchitis that gave a loud crackling wheeze at rest and a coughing that sounded like the exact description of a Sars infectee.. I had papers from Georgia Department of health infectious diseases control that I'm clean with an unusual form of asthma / auto immune disease that is genetic..
Thank you my good sir.
I was in the Navy in the 80's and 90's and had access to feed water for boilers, I used that and a soft bristle tooth brush to clean any boards that became contaminated with varying substances including those that had salt water leak onto them. ( I was told years ago in training the best insulator is pure water, and the worst insulator is water due to all the contaminants in it)
. After cleaning with the feed water I would pour alcohol onto the board to displace the water and then let it dry for 3 to 5 days. Using this method I think there was only 1 board that I was not able to repair and it was due to the fact that the traces had started burning off before the issue was discovered and it had penetrated a multi-layer board, most of the boards I dealt with back then were single or dual sided and Multi-layer boards were still new and very expensive. The time to NOT use water is when the board has windings such as coils or transformers attached to it, once you get water into windings even using alcohol will not really remove the water even when letting it dry for months (Learned this the hard way), using an oven would probably work though but I never tried that back then.
Louis, that old rant video was a classic, and it's what prompted me to order one of the Crest cleaners from you way back when. No need to apologize as far as I am concerned. I got a good laugh out of your comment about skull fornicating motherboards in a cleaner.
we use a crest and EC have for 15 years the crest is better if you get a sweep frequency model so you don't damage cavity parts like crystals etc.
we don't us alcohol to rinse with because it is extremely flammable , we do use a industrial oven set to about 180F that has forced cross flow
air on the shelves, or just set them out in the sun, we use water from a RO filter to rinse the boards out of the ultrasonic, but any deionized source works well. So the swept frequency Crest units have worked well for us. for small things that you want to degrease put them in a small container
in whatever solvent you want and suspend it in the water bath, ultrasonics are designed for the density of water not solvents.
I use to work for omegasonics we sold small ones like that to large ones for fire restoration. Pretty cool technology.
It's like washing dishes.
The ultrasonic cleaner does all the 'scrubbing' with the help of its distilled water and EC solution.
Replace the ultrasonic cleaner with a sponge, replace the EC fluid with soap, and you're back to washing dishes.
But you don't rinse dishes in the now-dirty water/soap mixture.
You get the cleanest dishes if you rinse with fresh water.
The alcohol step is just like rinsing your newly cleaned dishes. Then you move on to drying them.
Thank You
I've had instances where a part needed to be cleaned with alcohol, and in those cases I usually fill the ultrasonic cleaner with water, then use a small container of alcohol with the part in it. This then sits in the ultrasonic cleaner. For something like a GPU, that could be a relatively small and shallow tray. Obviously it is a good idea to sit and monitor it, and you definitely don't want to heat it too much (for one thing most of the alcohol will evaporate).
I'm glad noted tech expert Oreo has given Louis permission to make a video on this.
I've used the same cleaner that the dude in you're video used for ~8 years. no issues there. It comes with a lid. If the fumes catch alight, you'll quickly run out of oxygen to support the fire.
The tank is sealed, apart from the drain that leads to a tap. There is nowhere for the solvent to leak into the electronics.
As far as cleaning with alcohol, it depends what you're trying to clean.
I bought a refurbished iMac and it didnât work from day 1 after receiving it, I fought with apple for months and even had to go to different apple genius bars in different counties and they all said it was working. I even took video footage of it and they still didnât believe me, eventually a nice store manager just gave me a brand new imac. This took months and I feel your frustrations with the company !
Yesterday I was researching how to do this because I have a GPU with some sort of shit under the core chip and doesn't work, thank you so much for this.
I use sonicators at work sometimes, they're miniature versions of ultrasonic cleaners. Please know that "ultra" (>20khz) sound is still sound and will damage your hearing if exposed to it for long periods of time. Ultrasonic cleaners are incredibly loud, think concert speaker levels.
Fully agree with you Louis in regards to that Video from Jay :)
WELL PUT AGAIN LOUIS!
Keep Pressing!!!
THANK YOU
Was hoping youâd do a video on this as I watch both of you đ
This problem also comes up with cleaning 3D prints. Cleaning resin (SLA) prints can be a mess. It is much better to sonicate then simply dip into alcohol. People in the forums are often 3D printing enthusiasts, who imo approach the problem with lot's of emotions. They dismiss all the warnings and use pure IPA in ultrasonic cleaners. A better solution is general purpose cleaners (in German: Allzweckreiniger). Then remove the detergent with IPA bath. Another way of probably using pure IPA would be in a cold room. 4°C is below the flash point of IPA. However, sonication warms up the liquid! So that may not be the safest solution.
As one who has used IPA and/or Ethanol for quite some time in an ultrasonic cleaner professionally I can say that the real problem is the fumes generated during cleaning. Even if you do not use heating the ultrasonic energy itself will cause quite the temperature rise in just a few minutes (alcohol has way lower thermal capacity than water). After about 15min of cleaning the alcohol usually has reached 50+°C when starting at room temperature, then I have to change it or the evaporation rate gets out of control. I know it's not the best way to clean things, but if you do it like that ventilation is everything.
A long time ago, after I got my electronics degree, I worked in an electronic component testing lab. The only thing we used in our ultrasonic cleaner (as far as I know) was deionized water.
(That's not to say we didn't have dangerous chemicals on hand. When you get a DIP package and you need to inspect the actual silicon, apparently the best way to get rid of the plastic casing without damaging the microchip itself is boiling sulfuric acid. They did not pay me nearly enough to mess around with that stuff.)
I worked in a machine shop and the same thing - we only used deionized water. And I donât have a degree in any scientific field but the operation was fairly straightforward.
I have a $300 30L cleaner, love it. I do amiga 2000 boards and it handles it like a champ. How often do you change your fluid
Regarding the detergent bit.
When your doing XOC overclocking and your cleaning the board its to remove the moisture build up. You get water under the BGA which will kill it so you submerge the card in IPA to draw it out.
Funny to hear what people telling you are doing wrong!! HA, I use to clean cards in 5 gallon bucket of alcohol with acid brushes in a ship bouncing up and down! I wish I had that machine back when I was in the navy.
We all knew this was coming as soon as Jay showed us the IPA. đ
Thanks Louis, this is really cool you done this.
I still have a question though, after how much baths or time do you change the liquid in the ultrasonic cleaner? Do you change it systematically after each board, or does the liquidâs color is the gauge?
Thanks in advance from Montreal.
Louis be like: *sees Jayz video* YOU'VE ACTIVATED MY TRAP CARD!! *oreo wakes up, looks around, then goes back to sleep*
I will say you can light a cup of alcohol at room temp and it's underwhelming. At higher temperatures it makes more fumes and the more you have the crazier the initial flash will be.
Right & TY
Louis, it's not nitpicking for pointing out Jayztwocents almost lit himself and everyone in that room on fire.
He would have "flashed" them!
I was waiting for this to happen.
Alcohol is water soluble. Dilution is very effective with lower temperatures in reducing fire.
As most dirt and grime are easily removed with water and a surfacant, except some flux, this is all you need for boards that do not have a battery, fans, or beepers on them. Look up the board manufacturing process and you will find DI water is used. A little Dawn, or similar dish detergent works fine. Follow this with a DI rinse to remove the detergent. Keep the time low, use IPA only for the 2nd rinse to dilute and displace the water to prevent corrosion from slow evaporation of the water. On board buzzers, etc, can have a tape seal for the cleaning that is removed after cleaning.
Okay Lewis you redeemed yourself. you're completely prim and proper, thank you for that. if I ever get into the business of board repair (which my son wants me to do) I will listen to the ultrasonic stuff. I thought maybe there'd be some political things in betwixt and in between.
Well since you don't need to heat the alcohol once you've done the first stage of Ultrasonic cleaning(UC)-- leaving the heater off will reduce the risk. Another idea if you have a fume hood handy to further reduce the risk is place the UC inside next to a pot of dry ice. Turn on the UC, pour alcohol into the container of dry ice and lower the glass door. (You can't have an explosion if the oxygen needed for ignition is displaced.) When finished kill power to the UC remotely, allow it to cool down, then engage the fume hood's ventilation system.
@Lord_haven111 Since some whackos swear by rubbing alcohol for this-- I thought I would give a few ideas to mitigate the risk.
It is the fumes that light up, the liquid phase is imflammable. Heat causes faster evaporation, so a fire is selfpropeling when there is fuel.
i like how a safety overview of ultrasonic cleaning turned into a chem lesson for those who didnt already know
One more use of IPA in ultrasonic is for removing flux after board repair, half a minute does a lot better job removing it than I could do manually cleaning it for minutes. It just speeds up the solution of flux so much it becomes a lot less pain in the a** especially if you got it in tight spaces, like board-to-board connectors etc...
Thank you so much M. Rossmann.
One question though, after one cleaning session, what to do with the liquid in the ultrasonic bath? I mean, can it be used again or should it be drained and refilled with a new solution (distilled H2O + Branson) for each new cleaning session? Or does one bath can be used for a couple of cleaning sessions?
Thanks?
I knew this video was coming after I watched Jayz videođ
I donât think anyone will listen to this video either because of Oreo in the background, so cute!
I want to be the first to thank Oreo for this video and the quality information...... ;-)
@Louis, I think that board he was cleaning was caked in Vaseline from his over clocking project, maybe thats why he went with alcohol.. IDK.. But yea FIRE FIRE BOOM!
I listened, you said use crest because it helps fights cavities and I've gotta say, my mother boards haven't had any cavities in years.
Louis. Do you ever scrub any of your boards with a soft bristle paint brush and dish washing soap as part of your cleaning procedure?
I use alcohol in a very small cleaner for iPhone boards, the vibrations actually heat the alcohol and make it more volatile. Very short cycles and breaks between to avoid overheating
What is the best method of disposing of the liquid solution after using the ultrasonic cleaner? Does it need to be disposed of using a special waste removal procedure? Thanks in advance!
I genuinely never thought about the fire risks of isopropyl alcohol in the ultrasonic cleaner. Unfortunately Branson EC is banned here in the UK. Do you have any alternative recommendations for us muppets in the UK?
I just want to point out one more thing: alcohol vapors are inflammable and, under certain air/alcohol ratio even explosive. More dangerous than the liquid itself.
This is valid for every inflammable substance dispersed in air.
Really? I would have never guessed. Why has no one brought this up? Not even Louis mentioned this.
@@xenonram I hope it wasn't because he doesn't know. When ignited, air/inflammable mixtures are almost always deadly because they burn the lungs, create blisters inside them and thus stop the O2/CO2 exchange.
This is why good ventilation, light and appliances in the alcohol working area is a must. It must comply with fire and explosion prevention standards. No idea what they are in the US, but everything, at the very least, should be grounded and IP67 compliant.