Is there an online registry of hydrostatic proof marks?

[MudBug]

Perhaps you could post a photo of your marking? It is kinda hard to decipher zero information.

I will do that when I have the tank at hand.
I was hoping to be able to find a website where I could put the search inquiry in and have the company with that registration pop up.

 

[tursiops]

I will do that when I have the tank at hand.
I was hoping to be able to find a website where I could put the search inquiry in and have the company with that registration pop up.

LOL. Time for Plan B.

 

[TrimixToo]

I will do that when I have the tank at hand.
I was hoping to be able to find a website where I could put the search inquiry in and have the company with that registration pop up.

People have been known to fake RINs. Anyone can buy punches off McMaster et al. If you can't find it in the database...perhaps it's because it's never been assigned.

 

[TravisD]

Were retesters always on the 4-digit RIN stamp, or did they ever use the symbols like the OEM's do(did?) (Triangles, overlapping characters, etc)? And for the OP, are you definitely looking at a re-test stamp, or the original cert?

 

[tursiops]

And for the OP, are you definitely looking at a re-test stamp, or the original cert?

Yeah, pictures of ALL the markings would be helpful. We don't even know if it is a DOT tank.

 

[Tracy]

Were retesters always on the 4-digit RIN stamp, or did they ever use the symbols like the OEM's do(did?) (Triangles, overlapping characters, etc)? And for the OP, are you definitely looking at a re-test stamp, or the original cert?

Not always, but they have been using a 4 digit RIN at least since the DOT replaced the ICC. I'm not sure exactly when the switch happened, but it was long enough ago that you wouldn't need to research a tester with a mark.

At least in the US. Mexico still uses a symbol at some facilities. Other countries I'm sure vary.

 

[rjack321]

Not always, but they have been using a 4 digit RIN at least since the DOT replaced the ICC. I'm not sure exactly when the switch happened, but it was long enough ago that you wouldn't need to research a tester with a mark.

At least in the US. Mexico still uses a symbol at some facilities. Other countries I'm sure vary.

PHMSA took over from ICC for pressure vessels about 1966-1967. I don't know the date of the "last" ICC stamp, but it would have been before 1968.