So this is a the devil is in the details type of thing. If we are ONLY talking about SH then that is in table 2 and can be transported by anyone until it needs a placard and it gets placarded at 1001 pounds. That is why you hear the 1000 pound rule. However, if they have anything from table one then that is supposed to be placarded at all times and that is where the materials of trade exception comes into play. I have heard of people using a 5.2 (organic peroxides) in this industry, and that is a table 1 item. Don’t confuse that with a class 5.1 which hydrogen peroxide falls into.
Could they possibly make this more confusing?
Holy cow.
Where do you teach this stuff? Is there an online course you’d recommend? ‘Cause reading through that doc you linked has my head spinning…
Wait, have you read some of your post about ratios and what not? I get lost about a sentence in. But Mary has the nail hit on the noggin @CaCO3Girl
Touché
Every time I start reading some legalese with all kinds of references to other docs, subsections, etc., my eyes glaze over and I start hearing these two in my head:
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So that document is an excerpt of the 49CFR, it’s like the instruction manual for how to ship hazmat by Highway or rail within the US. I’m also an expert in hazmat shipping by Ocean (IMDG) and air (IATA). All have different rules and oh boy does it get in depth, but I like finding the loopholes.
To answer your question, I teach the class to my shipping/Receiving department, purchasing, customer service and lab. Anyone who has anything to do with packing a box, loading a box, or purchasing a box used in hazmat. My course lasts about 3 hours, the course I go to to refresh my certification is three days. We don’t ship 6 of the 9 hazard classes so it’s very easy to just say and here are the 9 hazard classes: explosives, gases, flammable liquid, flammable solid, oxidizers, poisons, radioactives, corrosives and class 9 which is the junk drawer of DOT land and if it doesn’t fit in the first 8 hazard classes, but is dangerous in some way, it goes into class 9. Then I go in depth into flammable, corrosives, and class 9, which is what we ship.
Lots of places have 49CFR classes online, some places even do it for free at local colleges and whatnot. 49CFR is my favorite thing to talk about. I’ve been offered a job traveling the country and teaching it but I still have a 12 year old in school, so it’s best if I’m home most of the week.
I’m surprised this hasn’t come up before. I’ve been teaching it for 20 years. I moved out of the lab and into regulatory so I could focus on 49CFR, SDS creation and federal hazardous substance laws as it pertains to consumer labeling.
Sorry for the book I have written here, I totally geek out on all of the above and just love what I do.
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No need too apologize, this is great information and actually really interesting!
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That’s awesome, and thanks for sharing your knowledge. No need to apologize.
Do you have any particular resources you’d recommend for those of us that might want to learn a little more?
I’ve heard good things about Training Modules | PHMSA
It’s free, and from the horses mouth. PHMSA is pretty much DOT.
I’m only an @ away too 
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Follow up to the dual barb system:
I needed a way to flush it out at the end of the day. This was my solution.
Soap on the left, bleach on the right, water in the middle. I have a couple different gallon jugs premixed with surfactant. One of them is my regular house wash mix, and the other is my “hot mix” for cleaning painted siding near roads. Has a little hydroxide in it to help cut through the soot.
Flexibility is the name of the game, here. This also enables me to do just soap without SH, SH without soap (for what reason, I have not anticipated yet), or to increase my SH draw ratio without adding more suds.
I was confused at first, and then realized I guess you have rigid supply hose protecting your pressure hose?
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Correct.
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Fancy shmancy.
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Love all the info you give us @CaCO3Girl! This is something all of us need to understand if we don’t want out of business fines. What I’m hearing is that I could have bought the 100 gallon sh tank and just kept myself under 1000 lbs. Oh well, I don’t do that much commercial anyway.
It’s always helpful to tell people that I get my info (for the parts where it’s your info and I don’t want to fight over what chemicals are good for x) from a chemist. It shuts people down pretty quick and gives them a lot more confidence in my service!
