We try to get around this problem by installing combination locks on all
the spectrometer rooms. All the authorized users have the combination,
and they are not allowed to let anyone else in. That way the cleaning
crew can't get in unless you personally open the door for them and
supervise them yourself. The fire department has "key override". This
set-up seemss to work for us.
chacko
Neil Jacobsen wrote:
> I think it would be worth saying something about cleaning people. We
> don't allow any cleaning people in any of our NMR rooms. Of course that
> means we have to empty the garbage ourselves, and the rooms are filthy,
> but I think it's worth it. I think this policy started when I was
> trying to explain the magnet situation to a new custodial staffer who
> was deaf, and after awhile it dawned on me that maybe we didn't really
> need to have the rooms cleaned. Of course, this policy has to be
> explained to the supervisors since staff changes regularly and all of
> these people have master keys. We've also had problems with maintenance
> people coming into the rooms to turn valves, shut off power, etc., and
> you just have to be vigilant. I try to get to know the maintenance
> people and have them always go into these rooms with a "chaperone".
>
> Neil
>
>
> At 05:13 AM 5/27/2004, you wrote:
>
>> Hi,
>> I had someone get a metal chair stuck to the base of a 500 mhz magnet
>> last year. It took 3 people and a few 2x4's to break it away slowly.
>> No quench. Lucky. Field came back and is stable.
>> We did have some notices posted on the doors and the magnet. However
>> the cleaning person couldnt speak English nor able to read much of it
>> let alone technical terms.
>> Since then I have warnings posted in several languages. ie; JAK
>> MAGNET!,etc/
>>
>> JIm
>>
>> Alan Boyd wrote:
>>
>>> Dear AMMRLers,
>>>
>>> We had a safety inspection this morning, and it was pointed out that
>>> in our
>>> rather small open-access lab there was no warning notice about magnet
>>> quenches. I said that this was a low probability occurrence, and it
>>> usually
>>> happened when someone knowledgeable was fiddling about with the magnet
>>> anyway.
>>>
>>> We were just about to agree to put up a plain text warning to say
>>> 'get out
>>> fast if there's a quench', when someone remarked that it was quite
>>> possible
>>> for an enthusiastic cleaner's floor-polishing machine to get sucked into
>>> the magnet, and then the probability of a quench was quite high... as
>>> is,
>>> unfortunately, the probability of the cleaner being unable to read.
>>>
>>> So, has anyone devised or designed a graphical or cartoon warning
>>> sign that
>>> tries to say 'get out fast if there's a quench'?
>>>
>>> Just trying to avoid re-inventing the wheel...
>>>
>>> Alan
>>>
>
> Neil E. Jacobsen, Ph.D.
> NMR Facility Manager
> Department of Chemistry
> 119 Old Chemistry
> 1306 E. University
> University of Arizona
> Tucson, AZ 85721
> 520-621-8146
> FAX 520-621-8407 setup from
>
--
V.P.Chacko, Ph.D.
Department of Radiology
217 Traylor Building
720 Rutland Ave.
Baltimore, MD 21205
Phone: 410 955 4220
FAX: 410 614 1948
Received on Fri May 28 2004 - 11:04:41 MST