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FFS Diver Training Club Forum -> Kit sales and information -> info on octopus from the hse.
Post Info TOPIC: info on octopus from the hse.
scubaone


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info on octopus from the hse.
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Research Report Series
RR341 - Breathing performace of 'Octopus' demand diving regulator systems

Self Contained Underwater Breathing Apparatus (SCUBA) often use an ‘Octopus’ system as an alternative air supply. QinetiQ at Alverstoke were contracted by the Health and Safety Executive (HSE) (Contract D5008) to conduct a review and breathing performance test of ‘Octopus’ systems. It was shown that SCUBA single demand valve systems capable of meeting the breathing performance requirements of BS EN 250, cannot be relied upon to meet the same requirements when used as part of an ‘Octopus’ system. Reduced breathing performance of ‘Octopus’ systems (when compared to single valve systems) was found to be a result of the use of low performance first stage regulators, second stage demand valves of different and poor performance and breathing in phase as opposed to out of phase. Recommendations on the use of ‘Octopus’ systems are presented. Appropriate test procedures and acceptance criteria should be identified for ‘Octopus’ systems, and proposed for the next revision of BS EN 250.




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Mares Bar


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I hate to be the first to (Look Stupid) but what exactly does this mean in English, or should I be dilligent and read the PDF before I post this question

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Mares Bar


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Ah haaaaaaaaaa

I get it now. . . . .

In a nutshel, for those who don't want to read all that, well you can work that bit out for yourself, here's how I see it, and fell free to cut me into ribbons if I get it wrong.

Buy a pony, and get a decent second stage reg on it!!

That's about the top and bottom of it, although to warrant the zillions and gawillions of pounds this research probably cost, they have to put some< PADDING > in.

The quick explaination of the padding is

If you don't want or don't have a pony with a decent second stage reg, then go an buy a better first stage, and octo than the one you have, that is if you haven't got the best that money can buy already.

Now, I will make a quick call to QinetiQ, to see what they did with 'Configuration A' and see if I can have it, now that they have finished with it.

We'll see . . . . . . . .



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ScubaChris


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Yeah, buy a pony ya bunch of cheapskates... -LOL


I only use the best equipment. John (Mares Bar) will bear testament to the quality of my octo.


C.



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Mares Bar


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ScubaChris wrote:


I only use the best equipment. John (Mares Bar) will bear testament to the quality of my octo.


C.




That worthless piece of junk !!! Came apart in im my mouth during an ascent in Stoney!!

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ScubaChris


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'Came apart' is too harsh a criticism. Only one part actually became detatched from the second stage and to be fair, I did get that reg for a very attractive price.


Chris



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