On Mon, 9 May 1994 ddoolett@me*.ad*.ed*.au* wrote: > hydrogen is narcotic, and also has some other desirable properties > for use as a diluent gas in diving I was unaware of that until you & John opened my eyes - I had always assumed Hydrogen was as non-narcotic as helium, and that it wasn't used in diving because of it's nasty reactions with oxygen at >4%. Always learning new stuff..... Aloha, Rich
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