Forwarded message:
> Dear Members,
> 
> I tried to dispose of some used x-ray tubes, but our hazardous waste
> department would not take them because they are under vacuum.  Because of
> the beryllium window in each tube, I do not want to just toss them into the
> garbage bin. (I've been told that beryllium is highly toxic.)  I suppose I
> can break the glass on the tubes, thus breaking the vacuum, and send them
> to the hazardous waste department.
> 
> How do other crystallographers dispose of old x-ray tubes?
> 
> Thanks in advance for your input.
>
> Yvonne Leduc

Does the vendor who sold you the XRD tubes have a policy
of taking back the old ones?  I remember this being
the case with Philips XRD tubes in Melbourne(?).

Lachlan.

-- 
Lachlan M. D. Cranswick

Collaborative Computational Project No 14 (CCP14)
    for Single Crystal and Powder Diffraction
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