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Why even have interchangeable cartridges in an industrial setting? It seems to me that cartridges that protect from different hazards should fit in physically incompatible and visually distinct masks.
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Jun 16, 2019 11:40
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Platystemon posted:Why even have interchangeable cartridges in an industrial setting?
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Jun 16, 2019 11:48
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Platystemon posted:Why even have interchangeable cartridges in an industrial setting? Well, it would make sense from a safety perspective. But from a logistics perspective, if you're dealing with more than one or two potential hazards, you'd need to have a hell of a lot of different masks lying around... plus then you're adding another potential point of failure where someone might be stuck with an incompatible mask and cartridge because they grabbed the wrong one. Not to mention that if every cartridge needs to be manufactured with a different size/threading/whatever they're probably also going to be prohibitively expensive.
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Jun 16, 2019 11:49
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Most of the dangerous gases I was trained to deal with or avoid ignore cartridges in any case, and only a self-contained breathing apparatus (i.e. SCBA) is possibly effective. H2S, pure-N2, high-concentration CO2, CO, N2O, etc. etc. are not contaminants in air, they are air, and filtering them out is about as easy to do as filtering out the O2 in normal air. But that wouldn't stop somebody in a scary situation from slapping on a N99 filter mask when the alarms start blaring. So you don't leave anything lying around that fits on your face and isn't SCBA. The different cartridges I saw were for different kinds of dust, or in a few cases for volatile solvents. Some of them would break down into toxic nastiness if you tried to wear one into an environment they weren't built to deal with, so instead of just getting dosed with paint fumes and getting a little high you'd be inhaling Mr. Cancer.
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Jun 16, 2019 12:01
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Default Settings posted:This. As someone who works with hazardous gases, this is the most OSHA post I've ever read. I'm perched here to write about the impracticalities of this setup, but Platystemon behind his desk only cares about safety. Practicality third. There’s not even a Rule Number Two. But even though there’s nothing in second place, practicality is not getting promoted to number two.
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Jun 16, 2019 12:01
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What size/type tanks are used for SCBAs? A scuba rig with a full face mask is pretty close to that already, but carrying around 40-50lbs of tank (before any other gear is added) seems a touch fairly impractical 
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Jun 16, 2019 12:04
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ExecuDork posted:All of the mine and oil sites I've been to had a statement somewhere in the safety induction to the effect of "If you need a cartridge, we'll supply it. If you bring ANY cartridge on-site, you will be fired instantly, even if it's the correct cartridge for your particular job." Platystemon posted:Why even have interchangeable cartridges in an industrial setting? Icon Of Sin posted:What size/type tanks are used for SCBAs? A scuba rig with a full face mask is pretty close to that already, but carrying around 40-50lbs of tank (before any other gear is added) seems a touch fairly impractical evil_bunnY fucked around with this message at 12:21 on Jun 16, 2019 |
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Jun 16, 2019 12:09
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Icon Of Sin posted:What size/type tanks are used for SCBAs? A scuba rig with a full face mask is pretty close to that already, but carrying around 40-50lbs of tank (before any other gear is added) seems a touch fairly impractical To start with, SCBA tanks can be a third the size of SCUBA tanks. To provide the same lungfuls of air as a SCUBA rig would under twenty metres of water, they need only contain a third the air mass.
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Jun 16, 2019 12:09
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Icon Of Sin posted:What size/type tanks are used for SCBAs? A scuba rig with a full face mask is pretty close to that already, but carrying around 40-50lbs of tank (before any other gear is added) seems a touch fairly impractical Much smaller than a SCUBA tank. The ones we practiced putting on and caring for in the H2S course weighed maybe 25 pounds including the mask. They might have been lighter than that, but certainly not heavier. I've walked around in full SCUBA gear (minus the fins, they make it too hard to walk down the dock) and the long-rear end tank bumps into the backs of my legs. Plus it takes a good 20 to 30 seconds to get into the BCD+Tank; the H2S SCBA systems are supposed to be put on as fast as possible, in one smooth(ish) movement that takes maybe 3 seconds, most of which is getting the mask straps straightened out.
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Jun 16, 2019 12:13
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Powershift posted:Everybody in the oilfield has to be clean shaven, because everyone at some point could be required to put on a respirator and go drag someone away from the gas. Everyone on a sour site has a personal monitor to detect gasses so it shouldn't happen, but like i said, H2S can gently caress you up in a hurry. On the plus side, that's 10's of thousands of toxic males that won't share beard gatekeeping memes hahhahaha who am I kidding.
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Jun 16, 2019 12:25
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Are there regenerative systems for longer term use, or is it all single-pass for simplicity's sake and if you need to work longer you use a hose?
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Jun 16, 2019 12:37
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The Lone Badger posted:Are there regenerative systems for longer term use, or is it all single-pass for simplicity's sake and if you need to work longer you use a hose?
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Jun 16, 2019 12:41
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evil_bunnY posted:You can use a closed circuit rebreather with an o2 canister and co2 scrubber yes. The BG4 is one Huh, it has a drinking valve. That actually makes a lot of sense.
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Jun 16, 2019 13:15
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evil_bunnY posted:cartridges are already visually distinct. Making them not fit generic facepieces is 100% useless.
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Jun 16, 2019 13:52
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Splicer posted:Is it easy to tell what cartridge is already in a mask? Genuine question I know nothing about this. Yes. They're colour-coded and the name of the cartridge is printed in big letters on the side or somewhere else on it. They stick out from ports at the base of the mask, they're not hidden in any way. EDIT: I'm a dork. When I got fitted for a mask, one of the things the techs do is ask you to speak at a normal volume while wearing the fitting mask. I just started telling her about my day and my job and... "Just count."
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Jun 16, 2019 13:54
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Splicer posted:Is it easy to tell what cartridge is already in a mask? Genuine question I know nothing about this. ExecuDork posted:EDIT: I'm a dork. When I got fitted for a mask, one of the things the techs do is ask you to speak at a normal volume while wearing the fitting mask. I just started telling her about my day and my job and...
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Jun 16, 2019 14:08
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PurpleXVI posted:I have to ask, if you're working in a location where that could be a danger, why wouldn't everyone just slap on the respirator to start with and not take it off until the work was done? I mean, there's probably a reason why, but that would seem like the safest solution. I used to oversee operations for a few mining companys here in Oz and always rocked a big ol beard. Had to go to an underground site where I would be in an exploration area where clean shave was required. Oh boy didn't I get told off for looking like a boy when the missus saw me clean shaven for first time since she'd met me.
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Jun 16, 2019 14:33
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ExecuDork posted:nobody is going to screw the wrong brand of beer onto their mask and then die choking on their own bloody vomit. If this thread has shown anything, it's that there's a very good chance someone will do exactly this.
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Jun 16, 2019 14:45
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ExecuDork posted:A can of beer would get you in trouble, but not instantly fired (unless it was wedging down the throttle on a forklift or something), because nobody is going to screw the wrong brand of beer onto their mask and then die choking on their own bloody vomit. 
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Jun 16, 2019 14:58
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Thinking about having the printer crank out an adapter now, thanks
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Jun 16, 2019 15:01
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This is making me glad that the self rescuers that I have on hand at work are beard friendly so that I can be lazy about shaving.
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Jun 16, 2019 15:10
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Another reason for not having different threads for each cartridge is that these masks have to be fit tested to the person. If you need a mask for every different thing, that'd be a lot of masks you'd have to carry around. E: and get fit tested for costing more $$$ I did a couple jobs at an Imperial Oil refinery, we were working inside one of the tanks that held oil/gas. It was huge, I think they said it held something like 150,000+ barrels of oil. They cut a hole in it big enough to drive a bobcat in there, and even with that, and the fact that i had been emptied (obviously) and open to the atmosphere for months, we still needed half masks with the appropriate cartridges and had to use "confined space procedures". The floor space in there was big enough for like two NBA courts. wesleywillis fucked around with this message at 17:44 on Jun 16, 2019 |
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Jun 16, 2019 15:34
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Powershift posted:
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Jun 16, 2019 15:49
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gonna need you to help hump this wood home son its hup dad look son i meant what i said now get your rear end in the hatchback
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Jun 16, 2019 15:50
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wesleywillis posted:Another reason for not having different threads for each cartridge is that these masks have to be fit tested to the person. If you need a mask for every different thing, that'd be a lot of masks you'd have to carry around. My first thought is: Did we learn nothing from Apollo 13?
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Jun 16, 2019 16:05
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PirateDentist posted:My first thought is: Did we learn nothing from Apollo 13? Don't know. Never saw that movie.
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Jun 16, 2019 17:45
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/phoneposting Oh a delivery of Homer heads.
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Jun 16, 2019 17:55
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ExecuDork posted:A can of beer would get you in trouble, but not instantly fired (unless it was wedging down the throttle on a forklift or something), because nobody is going to screw the wrong brand of beer onto their mask and then die choking on their own bloody vomit. Wingnut Ninja posted:If this thread has shown anything, it's that there's a very good chance someone will do exactly this. *ext: an oil refinery in Texas* 6 men are working to refit a pipe when the alarm sounds "GAS GAS H2S!" Three men reach to their belt and grab a Lone Star. Two men reach to their belt and grab a Shiner Bock. One man reaches to his belt and grabs... a Smirnoff Ice "Haha! You just got Iced, Mike, you know the rules!" "gently caress you, assholes, I'll take the gas" *chokes on vomit, dies* Dulce et decorum est Pro Texasa mori
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Jun 16, 2019 18:57
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I just realized you can see the beer pooling behind his goggles.
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Jun 16, 2019 19:03
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Dirt Road Junglist posted:I just realized you can see the beer pooling behind his goggles. Yeah, that's a tight seal, OSHA approved.
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Jun 16, 2019 19:04
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This is so German lol
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Jun 16, 2019 19:54
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I think someone heard the phrase "beer goggles" and got completely the wrong idea
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Jun 16, 2019 20:19
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is this actually possible? crossposted from the comic strip megathread:
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Jun 16, 2019 22:20
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Vincent Van Goatse posted:Somewhere Fred Dibnah is shaking his head sadly. No way https://www.youtube.com/watch?v=0L1WOnR2KBY&t=435s
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Jun 16, 2019 22:45
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evil_bunnY posted:cartridges are already visually distinct. Making them not fit generic facepieces is 100% useless. Medical gas fittings are supposed to be clearly labelled, but incompatible fittings have saved lives there.
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Jun 16, 2019 22:48
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Icon Of Sin posted:What size/type tanks are used for SCBAs? A scuba rig with a full face mask is pretty close to that already, but carrying around 40-50lbs of tank (before any other gear is added) seems a touch fairly impractical Most self contained units usually have about the same as you would use for a scuba tank that you strap to your back. 30 minutes of air if you're not panic breathing(you will be) The older units/confined entry units use 2 smaller tanks you could strap to your hip, each with 5 minutes. Supplied air units have one 5 minute tank. I happen to have one on my desk i turned into a self-refillable computer duster. Can for scale.   These tanks are pressurized up to 4500 PSI, so once they're no longer able to pass certification, they're supposed to be destroyed but they find their way to auctions. I can only get it to 150psi with the compressor in my garage, which gives me about a minute of dusting. Also fun fact: they use a special type of air fitting so you don't just hook your 4500psi breathing tank up to some air tools. had to do some real kajiggering to make this work. e: this is what a modern SCBA looks like   If you're on a sour location, you'll see these dotted around everywhere. Likewise, if you're on a location with a bear in the area, there will be bear mace and air horns everywhere. Powershift fucked around with this message at 22:54 on Jun 16, 2019 |
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Jun 16, 2019 22:50
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Platystemon posted:Medical gas fittings are supposed to be clearly labelled, but incompatible fittings have saved lives there. Totally different scenario. All of these "cartridges" are all supposed to be fit to breathing masks, they just protect against different things. It's not like they have cartridges full of poison that you might accidentally attach to your breathing mask. If you make them incompatible, you still have the same problem of people using the wrong mask for the wrong breathing hazard.
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Jun 16, 2019 22:56
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https://www.youtube.com/watch?v=6Viwwetf0gU
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Jun 16, 2019 22:56
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One weird trick to supercharge your air tools. Foremen hate this!
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Jun 16, 2019 22:56
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Waiting warmly for fully operational man hacks to become reality.
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Jun 16, 2019 23:03
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