Alain, There's a lot of misinformation floating around on this thread concerning tritium. Let me pass on what I was taught in EOD school and hopefully dispel some of the myths.

Tritium is a radioactive isotope of hydrogen that emits beta type particles. It is the weakest beta emitter. The range of the particles is about 5mm in air and 0.005mm in water or soft tissue. Being a hydrogen isotope, tritium is lighter than air and is easily dispersed in even the slightest breeze.

Besides nuclear weapons, tritium is used in watches, compasses, gun sights, and, apparently, glow rings. If someone orders about 10,000 of these things then you might be concerned that they were trying to use the tritium in a homemade nuke. To my mind, the more pressing concern is that they already have a few kilos of plutonium that can be made into a weapon, even without tritium enhancement.

The only immediate danger posed by breaking a gun sight, glow ring, or whatever is if you happen to break it while you're chewing on it. Even then I'd be more worried about the glass I was ingesting than the tritium contained there in.

I suspect that the only purpose of export restrictions is yet another piece of political "feel-good" legislation to let the uninformed masses sleep at night knowing their government is protecting them.

Hope this helps,

Ed