I just heard through the kelpvine that a or some dive center in Monterey are being visited by the US Department of Transportation concerning the vis's and hydros they are providing. I have never heard of this before. Anyone heard anything?
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First off, DOT has nothing to do with standards on visual inspections. That is an industry standard and about the closest you can come to any authority trying to set uniform standards is PSI (PSI-PCI - Home). But DOT does have everything to do with hydrostatic tests. The standards for doing that are quite specific and have the force of law. The record-keeping requirement is very onerous and the penalties for non-compliance are severe. There are only two people in Monterey who do hydros: Ernie and Jared. It would be an easy enough matter to ask them if somebody has been around checking their records. I've seen Ernie's records (since he just flunked one of my HP100's a few weeks ago) so I'm sure Ernie is ready for any DOT inspector.
Bruce
Which pretty much gives CGA pamphlet C-6 whatever the rule of law. So, no, DOT does not specify the standard to follow, except they specify that you must follow the standard outlined in the CGA pamphlet, so they do in fact specify a visual inspection. In fact, the visual inspection as specified comes before the pressure test.(3) Visual inspection.
Except as otherwise provided in this section, each time a cylinder is retested, it must be visually inspected, internally and externally, in accordance with CGA Pamphlets C-6, C-6.1, C-6.2, or C-6.3, as applicable. The cylinder must be approved, rejected or condemned according to the criteria in the applicable CGA pamphlet. Internal inspection may be omitted for cylinders of the type and in the service described under paragraph (e)(13) of this section. DOT 3BN cylinders must be inspected in accordance with CGA Pamphlet C-6.
Like usual, when someone who isn't in the business starts talking about hydro requirements, they are a little bit right. To quote DOT:
Which pretty much gives CGA pamphlet C-6 whatever the rule of law. So, no, DOT does not specify the standard to follow, except they specify that you must follow the standard outlined in the CGA pamphlet, so they do in fact specify a visual inspection. In fact, the visual inspection as specified comes before the pressure test.
Wookie, I don't claim to be "in the business" - My understanding is that the DOT mandates Hydros when the tanks are in commercial service or if transported (lets not get into nitpicking on definitions above - immaterial to my point), but the intervening visual inspections are not government regulated, but an industry standard. If this is the case then the DOT only cares about the conduct of a visual inspection that is an intergral part of the hydro testing.
lh.
But if you have to replace the neck O-rings anyway, you might as well have a peek inside. Doesn't hurt, and it might help.
Like usual, when someone who isn't in the business starts talking about hydro requirements, they are a little bit right. To quote DOT:
Which pretty much gives CGA pamphlet C-6 whatever the rule of law. So, no, DOT does not specify the standard to follow, except they specify that you must follow the standard outlined in the CGA pamphlet, so they do in fact specify a visual inspection. In fact, the visual inspection as specified comes before the pressure test.
Off topic, but you would be subject to California Department of Fish and Wildlife fines. Abalone may not be taken using scuba gear, and may only be taken in Northern California. Just saying.A cylinder must be in current hydro to be transported or filled. Commercial service has nothing to do with it. The mistake you are making is "Transported in commerce". That means you, as Joe Diver, carrying a cylinder in your trunk to Monterrey Bay to go get an abalone for dinner are not subject to DOT regulations