In message <[email protected]>, "J. Fo
rster" writes:

>I'm not so sure. If you cut open the tube and then immediately rinsed the
>insides with deionized water, then the acid etch, I doubt there'd be much
>Cs left after 5 minutes. Now there could well be nooks, crannies, or cul
>de sacs that are all but impossible to wash out. I can certainly believe
>that.

While you may be able to get away with that in your garage, I can
certainly see why HP didn't want to do it at work:

>From Cs' MSDS:

        Extinguishing Media: DO NOT USE WATER. Use class D metal
                fire agent, dry salt or sand.

        Special Firefighting Procedures: Firefighters must wear
                full face, self-contained breathing apparatus with full
                protective clothing to prevent contact with skin and eyes.
                Fumes from fire are hazardous.

        Unusual Fire and Explosion Hazards: DANGEROUS WHEN WET. If
                involved in a fire, burning metal may produce
                severely corrosive fumes of cesium oxide and
                hydroxide. Cesium reacts violently with water,
                liberating and igniting hydrogen, perhaps explosively.
                Cesium may ignite spontaneously on contact with
                air. Pyrophoric metal.

Remember, a spent Ceisium tube has a couple of grams of the stuff
spread out with a very large surface area.

You won't see me open one...

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
[email protected]         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.

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