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  1. #14
    Join Date
    Apr 2010
    Location
    Magnolia, Tx
    Posts
    35
    Quote Originally Posted by Phase Loss View Post
    you develop a tolerance to the small leaks where it's uncomfortable around it, but you can hang in there.
    so true

  2. #15
    Join Date
    Mar 2001
    Posts
    1,499
    Some of the older ammonia mechanics built up a tolerance for the stuff. When I was gophering for them, I was used as a leak detector as I would come out of the area bawling and snotting, while they wouldn't even smell the stuff. I think they used it as aftershave.
    One way to outthink people is to make them think you think. They'll think you're not really thinking what you're trying to get them to think you think...........

  3. #16
    Join Date
    Aug 2006
    Location
    Columbus Ohio
    Posts
    2,041
    Quote Originally Posted by benny42 View Post
    Ok, its bad, but have you worked around it or on a system charged with it?
    Yes, I have worked in ammonia plants, not on ammonia systems but around it. I have zero desire To be a ammonia tech.
    UA LU189

    10mm, because it's better than .45acp

  4. #17
    Quote Originally Posted by zw17 View Post
    To give those of you that have never experienced pure uncut ammonia an idea of how powerful it is...

    I sat in a classroom where the teacher put one drop on the table up front and that 25'x50' room was cleared within 30sec. You couldn't breath.

    For someone like myself who has worked with Ammonia for 30+ years, will you please tell me what "Pure Uncut Ammonia" is?

  5. #18
    Quote Originally Posted by benny42 View Post
    Ok, its bad, but have you worked around it or on a system charged with it?

    I've worked as an Ammonia Technician for 30+ years, to answer your question, yes it's dangerous and very harmful. But with the Experienced Ammonia Techs paired with good PM's on your Refrigeration System, leaks are few and far between (or at least they should be) and when a leak occurs unless the PPM exceeds 25 parts per 8 hour shift (OSHA PEL) your not in tremendous danger. That's not to say that you won't smell it and feel its effects, but your safe to work in it. The IDLH (Immediately Dangerous to Life or Health) for Ammonia is 300ppm, easy to say that if you walk into a room that's 300ppm without proper PPE, you WONT be walking out.

  6. #19
    Join Date
    Jan 2010
    Location
    Lower mainland bc.
    Posts
    105

    Now here is a big amonia leak..aka, the death cloud. I think 40,000gallons leaked.

    http://www.youtube.com/watch?v=sNkdAs1e7Cw





    Quote Originally Posted by lortech View Post
    All I can say is wow. I know the stuff is dangerous, but did not know it can lead to life disabling injuries.

    My question is, do these ammonia alarms respond to ammonia by detecting it in the air? Had she not walks to the back of the rink she would have never been exposed. Shouldn't there be a PA announcement to tell people to move away from the building?

    http://www.vancouversun.com/sports/l...620/story.html

  7. #20
    Join Date
    Apr 2010
    Location
    NC Sandhills
    Posts
    411
    About 2 years ago we had several bad tornados touch down in central NC. One hit my girlfriends' sisters house in Dunn a few miles from my place so we headed straight there. We had to run the last half mile as roads were impassable to cars. A foodlion distribution warehouse was about a halfmile on the other side of her house and took a direct hit. We couldnt see a cloud per se but the smell was so pungent it was tough to breath (especially after all that running, being out of shape) Eye and sinus irritation came soon after. 30 minutes later after the air was better a police car came by telling people to evacuate, but everyone stuck together making sure everyone in the neighborhood was accounted for. I couldnt imagine being in an enclosed area with that mess unprotected.

  8. #21
    Join Date
    Apr 2010
    Location
    Magnolia, Tx
    Posts
    35
    Quote Originally Posted by Nh3 Refrigeration Tech View Post
    I've worked as an Ammonia Technician for 30+ years, to answer your question, yes it's dangerous and very harmful. But with the Experienced Ammonia Techs paired with good PM's on your Refrigeration System, leaks are few and far between (or at least they should be) and when a leak occurs unless the PPM exceeds 25 parts per 8 hour shift (OSHA PEL) your not in tremendous danger. That's not to say that you won't smell it and feel its effects, but your safe to work in it. The IDLH (Immediately Dangerous to Life or Health) for Ammonia is 300ppm, easy to say that if you walk into a room that's 300ppm without proper PPE, you WONT be walking out.
    I agree and know what you are saying. My sarcastic comments were concerning the "one drop of pure uncut..." statement above.
    I've been in several ammonia plants and have a healthy fear of its effects. BUT... there is some B.S. slinging thru here.

  9. #22
    Join Date
    Aug 2006
    Location
    Columbus Ohio
    Posts
    2,041
    Quote Originally Posted by Nh3 Refrigeration Tech View Post
    For someone like myself who has worked with Ammonia for 30+ years, will you please tell me what "Pure Uncut Ammonia" is?
    The ammonia that you buy at the grocery store for cleaning purposes is what about 5%?

    What percentage is refrigeration ammonia?
    UA LU189

    10mm, because it's better than .45acp

  10. #23
    Quote Originally Posted by zw17 View Post
    The ammonia that you buy at the grocery store for cleaning purposes is what about 5%?

    What percentage is refrigeration ammonia?
    First question; Yes you are correct, anywhere from 5 to 10% is accurate.

    Second question; R-717 (Ammonia used for Refrigeration) is typically close to 99.98%.

  11. #24
    Join Date
    Aug 2006
    Location
    Columbus Ohio
    Posts
    2,041
    Quote Originally Posted by Nh3 Refrigeration Tech View Post
    First question; Yes you are correct, anywhere from 5 to 10% is accurate.

    Second question; R-717 (Ammonia used for Refrigeration) is typically close to 99.98%.
    To answer your question...

    Between 90-95% purity is the difference between uncut ammonia and the cut version that 99.9999% of the people on this site are accustomed to, and for those of us not used to R-717 it f'ing stinks and makes breathing uncomfortable.

    UA LU189

    10mm, because it's better than .45acp

  12. #25
    Join Date
    Dec 2003
    Posts
    2,419
    Quote Originally Posted by zw17 View Post
    it f'ing stinks and makes breathing uncomfortable.


    Almost an understatement.

    That stuff will make you jump off a roof or run through a block wall to get away from it. Its a great refrigerent but I cant see it ever being used anywhere other than industrial plants.

  13. #26
    Join Date
    Nov 2009
    Location
    Richmond, working under tarps
    Posts
    501
    It aint that bad.
    stings a little, you learn to breathe shallow........
    You get used to it.

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