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Old 08-19-2009, 07:30 PM   #31
Mugwest
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man-- talk about a contact Buzz... as i was reading this thread just now with a sinking feeling in my guts at all the stupid hazmat abuse i've done (both for pay and voluntarily), i took a swig of beer and instantly felt clammy, cold-sweaty and sick.

All the same 'old days' acetone and brake cleaner abuse applies. I only started using blue nitrile gloves a few years ago, and sporadically at that.

The damage has been done

prolly a moot point but i'll be minimizing those exposures from now on

excellent reminders here folks

don't forget that most of these agents will end up in the water table eventually. Hopefully they are not long-lived in solution, but that's just shit-in-one-hand wishing. Ask the Indicator Frog
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Old 08-19-2009, 09:19 PM   #32
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Arc Welding Safety

Arc welding is a safe process when sufficient measures are taken to protect the welder from potential hazards and when proper operating practices are followed. Major hazards welders can encounter if these dangers are overlooked include fumes and gases, arc rays and sparks, and electric shock. Listed below are some informative websites and data resources.
Publications from Lincoln Electric
  • Arc Welding Safety Brochure - E205 View pdf (English) View pdf (Español)
  • Arc Welding Safety Poster - E201 View pdf
  • A Guide to Welding Fume Control - MC08-67 View pdf
Request
Frequently Asked Questions
Lincoln Electric Material Safety Data Sheets
Publications from the American Welding Society

Fume Extraction Equipment
  • Environmental Equipment Selection Guide - MC05-138 View pdf
  • Miniflex® - E13.11 View pdf
  • Mobiflex® 100-NF - E13.42 View pdf
  • Mobiflex® 200-M - E13.12 View pdf
  • Mobiflex® 400-MS - E13.13 View pdf
  • Statiflex® 200-M - E13.14 View pdf
  • Statiflex® 400-MS - E13.15 View pdf
  • Extraction Arms - E13.16 View pdf
  • X-Tractor® 1GC - E13.17 View pdf
  • X-Tractor® Fume Extraction Guns - E13.18 View pdf
  • X-Tractor® 3A, 5A and 8A - E13.19 View pdf
  • DownFlex™ Downdraft Tables - E13.50.1 View pdf
Request Fume Extraction Equipment Literature
Safety & Health Topic: Hexavalent Chromium
Additional Welding & Safety Resources on the Web

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Old 08-19-2009, 09:58 PM   #33
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Quote:
Originally Posted by svejkovat
I don't really understand why helmets are not commonly made with an option to seal against the face with a fitting to accept compressed air.
Like this?
Weld-O-Vista

Good post, I didn't know the exacts of this. But I woulda figured heating up these solvents probably wouldnt be a good air freshener.
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Old 08-22-2009, 10:16 AM   #34
thebigkr
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I run a household hazardous waste program and I'm here to say, if you think just because you can buy it at Kragen or Lowe's or Wally World it's safe, you are crazy. Some of the most toxic chemicals made are common in the home.
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Old 09-01-2009, 01:44 PM   #35
Purcell69
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It is absolutely frightening to think about the things we have exposed ourselves to over the years. I can remember using MEK (methylethylketone) as a parts cleaner many years ago. From what I recall, this stuff is no longer available. I also ingested smoke from burning polyurethane paint (both parts, not mixed) about 20 years ago, and playing in the "rock dust" dad was using to landscape the yard when I was a kid. Rock dust, as it was called was asbestos. Glad I quit smoking!

-Joe
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Old 09-01-2009, 02:29 PM   #36
Pike Bishop
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I remember my Dad bringing home big bottles of carbon tetrachloride (CCl4) from the plant. Back in the old days, people would use that stuff to clean grease off their hands! Not recommended that you use it while smoking, though ... in the presence of combustion, it produces phosgene!
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Old 09-01-2009, 03:04 PM   #37
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10 Times Worse Than Deadly Phosgene!!!!

Throw away every cooking utensil except Cast iron and Pyrex!

http://74.125.155.132/search?q=cache...=us&lr=lang_en

Wonder what they use at McD's?
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Old 09-01-2009, 04:55 PM   #38
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Great post. I've forwarded it on to everyone I know who may weld or work in their shop.

Makes me wonder about the years of using canned ether as a cleaner....

Wesley J
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Old 01-23-2010, 01:59 PM   #39
ryanwilliamcantrell
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Wow. Scary.


Thanks for the heads-up.
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Old 01-23-2010, 09:05 PM   #40
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Quote:
Originally Posted by svejkovat
Is it getting a bad rap? Nail salons have been soaking their customer's fingertips in it for many decades. And how many women have you known to exhibit signs of toxic psychosis leading to erratic pathological aggression?
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Nuff said.
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Old 01-23-2010, 11:45 PM   #41
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WOW.......thank you for posting.

A real wake up call.

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Old 01-24-2010, 06:53 AM   #42
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As a general rule, when I see organic compounds (carbon based stuff) I get more cautious when they are halogenated (chlorine, bromine, fluorine...). The more halogens the worse. Thats not to say I don't use caution with acetone and alcohols (methanol can ruin your day too) but halogens are just plane scary.

I used to spray WD-40 (a good example, lots of others like it) with abandon. Organic chemistry was a great teacher - I'm alot more careful with it now and try to only use it outdoors and try like hell to not inhale it and wear gloves.

Great post - and thx for bringing it on.
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Old 01-24-2010, 06:55 AM   #43
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Thank you for the stories and link. I'm picking up a Miller Tig welder soon.

I planned on using Acetone as a parts and filler rod cleaner because that's what

my welding books suggest. Who knows what I might have grabbed in the garage

if I ran out though.






(I'll also quit washing my hands with Acetone )

I used to build racing sailboats ~20 years ago. We washed up with Acetone everyday.

Mercury in the garage as a kid etc etc. It's amazing most of us are here to tell the tale.

I had a mercury thermometer blow up in my face once.
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Old 01-24-2010, 11:01 AM   #44
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I used to work in a chemical plant and even with laminated Saranex suits and supplied air SCBA masks and such, day in and day out operations means exposure. You gotta take the suit off and there's stuff on it.

Sure, you can go through the trouble of a proper decon but when you're all by yourself and nobody answers the radio and your elbows are sloshing full of sweat and you're dizzy from heat exhaustion from being in a poopy suit for 5 hours, you just want the dang thing off.

I've been sprayed in the face with methyl tertiary butyl ether which gets into your fatty tissues and doesn't leave. I've hooked up a hose to a 50 psi 2" acetone or methanol or ether header and blasted down a whole room, my SCBA cartridge getting hot and smelling all kinds of iffy things right through it.

I had to pull over on the way home from work for a projectile vomiting episode that struck instantly. Happened to other guys, too. We don't know what we got into.

Nitrile gloves are for keeping your hands from looking dirty. They don't stop the wimpy acids and caustics we use in my cheese plant, so they aren't going to do much for acetone, MEK, etc. Better than nothing I guess.

Those cheesy 1/2 masks they have at the box store aren't good for crap. I was issued one at the chem plant and I wore it for fit testing and never again. You can't get a good consistent seal at the nose bridge.

I assume my Crohn's disease is likely from various exposures and cavalier attitudes to chemicals over the years.

Be safe guys. Use good gloves and ventilation.

Oh yeah - I was buying some epoxy paint the other day and they had MEK right on the shelf, next to the acetone.
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Old 01-29-2010, 08:08 AM   #45
dentedvw
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I feel like projectile vomiting right now.

Cripes.
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