> On 5 nov 1997 Mischa Machius wrote:
>
..
> We have some questions about the shipping of crystals to synchrotrons.
>
> We have been shipping crystals stored in liquid nitrogen routinely with
> FedEx which is quite expensive. We hear that many people use Dewars where
> liquid nitrogen is contained in a sponge as carry-on luggage on flights.
> We think about doing so as well and would like to ask you to share your
> experiences.
...
Unfortunately, airlines are quite restrictive upon what you may carry with you,
both on board as well as in your luggage (at least here in Europe).
Liquid nitrogen is considered as something similar to compressed gas and thus
not allowed, even when it's in a sponge inside the dewar. So you have to use a
parcel service, etc. to ship it.
However, dry ice seems not to be any problem. So, if you could freeze and
transport your crystals like that and put them into liquid nitrogen at the site,
this should come handy. But one should check out before, if the crystals
withstand such a treatment ;-)
Best wishes and good luck,
Alexander
------------------------------------------------------------
Real programmers don't write specs. Users should consider
themselves lucky to get any programs at all and take what
they get.
Maarten Litmaarth
------------------------------------------------------------
Alexander Mueller
L.C.M.
Inst. de Biologie Structurale
F-38027 Grenoble
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