Visuals

[Rick Inman]

Stick some white Christmas lights into a clear tube, shove it into the tank and look around.

If in doubt, have it hydro-ed.

Please send me $20 for the class.

In my advanced vip class, I'll tell you how to scrape at stuff....

 

[ScubaAndDreams]

Stick some white Christmas lights into a clear tube, shove it into the tank and look around.

If in doubt, have it hydro-ed.

Please send me $20 for the class.

In my advanced vip class, I'll tell you how to scrape at stuff....

 

[Bob3]

Unless something new has popped up in the past few years, the DOT regs cover tanks used in interstate commerce, so "technically" there is no legal requirement to even hydro scuba bottles (in Canada there is, however).
When ya get right down to it, there are no laws [in the US at least] that prevent a guy from fabricating & using his own tanks - they just can't be stamped as being hydroed (you can still get 'em tested, if you can talk the facility into it) .
Good luck finding a shop that'll fill the things though. They'll probably run away from you screaming in terror & post your picture on their front door.

 

[OkieDiver]

Luxfer adds Visual Eddy Mark V to approved equipment list for inspecting Luxfer aluminum cylinders manufactured from 6351 alloy and 6061 alloy.

RIVERSIDE, Calif. (Sept. 29, 2005)—Luxfer Gas Cylinders has announced that the Visual Eddy Mark V™ eddy-current inspection device has been tested and found suitable for use with Luxfer aluminum cylinders manufactured both from 6351 alloy and 6061 alloy. This device is manufactured by Visual Eddy Products, Inc.

The Visual Eddy Mark V is the second device approved by Luxfer for use with both alloys. In October 2004, Luxfer approved use of the computer-aided Visual Plus 3™ eddy-current inspection equipment manufactured by Advanced Inspection Technology, Inc. (AIT). To ensure accurate results, both devices must be used in strict accordance with manufacturers’ instructions.

Luxfer will continue to evaluate the performance of Visual Plus 3 and Visual Eddy Mark V under field conditions and issue technical advisories, as needed.

Prior to October 2004, Luxfer policy only permitted use of eddy-current equipment with Luxfer cylinders made from 6351 alloy, and Luxfer did not recommend use of such equipment with Luxfer cylinders made from Luxfer’s proprietary version of 6061 alloy. The reason for this restriction was that earlier types of eddy-current equipment produced an excessive number of “false positive” readings, causing good 6061-alloy cylinders to be erroneously condemned.

Luxfer continues to recommend the use of earlier types of eddy-current equipment—including Visual Plus™, Visual Plus 2™, and Visual Eddy™ —to aid in the inspection of Luxfer 6351-alloy cylinders. However, these earlier devices still should not be used with Luxfer 6061-alloy cylinders. Only Visual Plus 3 and Visual Eddy Mark V should be used with Luxfer 6061-alloy cylinders.

Luxfer emphasizes that eddy-current devices are tools that improve the quality and accuracy of inspections—but use of these devices does not eliminate the need for a thorough visual inspection by a properly trained and qualified inspector.

Here is the link to the above verbage. click

 

[oxyhacker]

Depends on your definition of "last few years". The Hazardous Materials Transportation Act of 1990 eliminated the distinction between intrastate and interstate, giving the DOT authority over both.

Unless something new has popped up in the past few years, the DOT regs cover tanks used in interstate commerce, so "technically" there is no legal requirement to even hydro scuba bottles (in Canada there is, however).