broncobowsher
Contributor
So you know what to write on the labelAnd since nitrox cylinders are always labeled why would we need analyzers?
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So you know what to write on the labelAnd since nitrox cylinders are always labeled why would we need analyzers?
Uh huh. But when they fill them they put a label on them. I trust that label every bit as much as I trust no label being air that is actually 21%. What do you think happens if the "air" tank you calibrate off of actually had some nitrox in it before it was refilled? The big outdoor air tank is the reliable one.EAN28, EAN32, EAN36, etc., etc., etc.
MOD is a kinda important parameter.
The fill station does that for you. And if they don't put a label on it it is always 21%, isn't it?So you know what to write on the label
No.The fill station does that for you. And if they don't put a label on it it is always 21%, isn't it?
If I haven't analyzed the tank and initialed that label, I'm not diving that tank. There's only one person I trust when it comes to gas analysis.when they fill them they put a label on them.
I seem to remember that I've said something similar upthreadWhat do you think happens if the "air" tank you calibrate off of actually had some nitrox in it before it was refilled? The big outdoor air tank is the reliable one.
The fill station does that for you. And if they don't put a label on it it is always 21%, isn't it?
Yes, that was my point. You cannot trust a tank of "air" to calibrate an O2 sensor.No.
Even underpaid, undertrained, rushed and harried fill-station employees can make the occasional mistake.
Except there's no standard for this. Nitrox labels are a farce. I don't care if cylinders are pink with purple bands and a naked chick on them screaming "It's 32%!" There is neither a requirement nor a standard, nor should there be anything other than bare tanks unless you dive standard gases, then there should be a MOD label on it. Anything else and people start doing stupid things.
Analyze your gas and you never have to worry about what somebody put in a cylinder.
And since nitrox cylinders are always labeled why would we need analyzers?
Yes, that was my point. You cannot trust a tank of "air" to calibrate an O2 sensor.