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CBz - Online Hazmat Training: MC-312 Cryogenic Tankers
Note: I am having trouble posting a video in this discussion. Anyone have any suggestions? It's a short video (<1-minute). Using the reply function, I attached the video on the first reply, but it should be able to be imbeded into the original discussion page? CBz
It's mid-afternoon and you get toned out to respond to a hazardous materials incident involving a hazmat tanker that is reported to be on fire with smoke visible according to several motorists who called 9-1-1.
You arrive on scene and you see this:
* * * PLEASE LOOK A THE VIDEO IN THE BELOW RESPONSE * * *
What's your call here? How would you handle this incident?
TCSS,
CBz
Replies to This Discussion
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Permalink Reply by Mike Schlags (Captain Busy) Retd on
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Permalink Reply by Doug on
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Instead of using the imbeded code provided from youtube, maybe just try the link to the video itself?
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Permalink Reply by Ben Waller on
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This may just be offgassing from the tanker getting a little hot on a steamy summer day. If so, the offgassing is normal and probably not a threat, particularly with the relatively benign nature of the product.
The valve system in the rear cabinets allows diversion of the offgassing into a heat sink system beneath the tanker. That will help recover some of the vapor and recycle it into the vapor space in the tank - at least under some conditions.
The rule of thumb my tanker specialist instructor told us was to close all of the red valves and open the yellow one if we couldn't access the driver for help and if CHEMTREC didn't have help quickly available.
In this case, I probably wouldn't mess with the tanker at all.
Sometimes doing nothing is the best option.
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Well, upon arrival at the seen I can determine that that is not smoke, it is some sort of coolant leaking. What's on the placard, I can't quite make it out, is it the same number as in the yellow and black rectangle, 1977?
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you don't get the visual that the above you tube embedded video provides, which means I don't have to do anything to reproduce a still of the video... if it works on the reply side, it should be able to work on the discussion development side, hopefully the WC catches this.
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According to our trusty little ERG this is a pretty cut and dry situation, if it is 1977(Nitrogen).
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Doug, the vapor visible is almost certainly the product offgassing from the tanker's vent system...or should I say "Nitrogen Tender" for Capt. BZ? :-)
Regardless, the truck is not burning, and this event is common, especially in the steamy southeast in the summer.
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Permalink Reply by John Rulli Jr. on
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www.wiser.com its a online ERG and then some. verry useful.
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Permalink Reply by Michael Meadows on
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Captain Busy, according to my 2004 Emergency Response Guidebook it's a 1977 placard. That means it's nitrogen refigerated liquid(cryogenic liquid) that refers me to guide page 120. That is the guide for gasses, inert(including refigerated liquid). Since there is no fire present I would stage 330 feet away, upwind, stop traffic at that distance, and send in a 3 man crew in full turnout gear with SCBA and charged 2 1/2 line to inspect and make sure that it's just venting off. That wouldn't take that long if it is only venting and wouldn't tie up traffic too long. If it is a leak you are already prepared to deal with that possiblity as well. I mean I know you would likely roll on a 100 of these before you get a massive incident but it only takes once to end up dead.
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Yep, and not only that, those West Coast "tender" drivers have to go to the DOT and get a CDL with a TANKER endorsement before they can drive those mis-named "tenders".
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Permalink Reply by Derek R. on
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That link didn't work for me. But I did find it here: http://wiser.nlm.nih.gov/
Thanks for the info.
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