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SCI can make and supply a very nice 2L 300bar composite wrapped cylinder approved for dive use.I don't think there are any composite cylinders approved by the DOT that are suitable for underwater use that are close to that size, so there's not much room for confusion.
Filling any HP cylinder involves trust. I tend to trust DOT stamps because they have a track record of trustworthiness, and because there are multiple engineering, procedural, and regulatory controls in place to make these cylinders safe.
Iain, looks like that Chinese manufacturer has now moved to CE1354, but still leave critical details likes test pressure and that the cylinder is suitable for oxygen use, off the new labelling.... see page 3/4 of link for pics of those who are cutting out the middlemen's markup and sourcing themselves UFP Plongée Technique • Afficher le sujet - Avis sur le passage en blocs carboneThey know perfectly well what they are doing we disscussed this two years ago
They "claim" CE and the cylinders are even marked CE 0086
The only problem is that CE0086 is the CE mark of a notified body BSI Product Services
who have never heard of Add Helium, Euro Diving Zone or the manufacturer in China or
have ever certified a 2 litre oxygen cylinder for diving.
So we are back now that they are neither CE or DOT certified
Apart from the "self certified" and QA noncense by Add Helium for the hijab seller out his trailer park gaff
doing his own QA.
Iain, looks like that Chinese manufacturer has now moved to CE1354,
wrong. My wife and I just work at Add Helium. Very classy SB.Both owners of Add Helium per their website.
My aplogogy Ken. It's not a matter of "class" , but a web design issue.
On your website (as per my mobile phone) , under "Owners" (spelled plural) , both Peter and you appear under that heading, with a sub notation that you are "Administrative Director" .