Tank Fact and Fiction

[skdvr]

I came across this website today and thought that is was interesting so I thought I would post if for others to check out...

Facts & Fictions

Phil

[JCAT]

That is a good read, learned some things. Thanks for the link.

[acamato]

Thanks. Very interesting

[baywatch106]

interesting

[awap]

One interesting point. The next to last entry seem to give credibility to the annual VIS on scuba cylinders by referring to CGA Pub P-5. Yet much earlier in the list he made the point that CGA Pubs P-6 (series) are referenced in the CFRs giving them the same effect as Gov Regs. But no such mention of P-5. As I understand it, CGA also says, somewhere, that anything above 23.5 % O2 is to be treated as 100% O2 which get into another contentious industry practice.

[skdvr]

Originally Posted by awap

One interesting point. The next to last entry seem to give credibility to the annual VIS on scuba cylinders by referring to CGA Pub P-5. Yet much earlier in the list he made the point that CGA Pubs P-6 (series) are referenced in the CFRs giving them the same effect as Gov Regs. But no such mention of P-5. As I understand it, CGA also says, somewhere, that anything above 23.5 % O2 is to be treated as 100% O2 which get into another contentious industry practice.

Shoot him an email if you question something... He states somewhere else on his site that if you see something that seems wrong or out of place to contact him and he will either correct it of explain it.

The 23.5% thing PSI does support because that is the way that the CGA treats is. The scuba standard of 40% came from the NOAA and the US Navy (I think), both of which are pretty upstanding agency's. I do not that that the scuba world will ever go to the standard of anything other than air needs to be used with O2 cleaned equipment, but who knows...

Phil

[CompuDude]

The 23.5% thing is the one CGA reg I have no interest in bothering with.

With bank and membrane systems, it's simply an absurd requirement. PP blending is a different situation, of course.

[skdvr]

Originally Posted by CompuDude

The 23.5% thing is the one CGA reg I have no interest in bothering with.

With bank and membrane systems, it's simply an absurd requirement. PP blending is a different situation, of course.

I agree.... To many people have been using the 40% with great success for so long. I am not worried about it. Although I do not think you are dumb for wanting to O2 clean your tanks anyway. Not necessary though.

Phil

[PTAaron]

Interesting read. I didn't understand all of it... but interesting anyway!

[in_cavediver]

Originally Posted by awap

One interesting point. The next to last entry seem to give credibility to the annual VIS on scuba cylinders by referring to CGA Pub P-5. Yet much earlier in the list he made the point that CGA Pubs P-6 (series) are referenced in the CFRs giving them the same effect as Gov Regs. But no such mention of P-5. As I understand it, CGA also says, somewhere, that anything above 23.5 % O2 is to be treated as 100% O2 which get into another contentious industry practice.

I agree - I would like to see where the fed regs refer to P-5 as law. (same for the 23.5% aspect). I think I'll drop a note to him and find out.

The criteria are in 49CFR180.205 for visual inspections per CGA 6.X. Its In F - (1) for those who want the gory details.

http://frwebgate3.access.gpo.gov/cgi...i on=retrieve