[Histonet] CALIBRATING SCALES

Bonnie Whitaker bwhitaker <@t> brownpathology.com
Mon Jan 10 17:33:29 CST 2005


I would see if someone in your area has a set of traceable weights that you
could use to validate your weights.  You could take your weights to their
institution, weigh yours and theirs and record the difference, etc.  I think
that with sufficient documentation to back up your weights, the ones you
have could be validated for use.

Bonnie Whitaker


-----Original Message-----
From: histonet-bounces <@t> lists.utsouthwestern.edu
[mailto:histonet-bounces <@t> lists.utsouthwestern.edu] On Behalf Of Geoff
McAuliffe
Sent: Monday, January 10, 2005 6:17 PM
To: Winters, Bert
Cc: histonet <@t> lists.utsouthwestern.edu
Subject: Re: [Histonet] CALIBRATING SCALES


Hi Brian:

    I must admit that I was skeptical until I looked in the Fischer 
catalogue, a complete set of weights lists for $980. That said, what is 
the matter with your "old" weights? Maybe if you need great accuracy to 
4 decimal places you might need some very precise weights, but otherwise 
I think not. What sort of reagent needs that degree of precision?
    When we had Mettler come out and calibrate out balances the 
technician always had his own set of weights. I would talk to the 
manufacturer, the vendor and whoever is providing service.

Geoff
   

Winters, Bert wrote:

>We have a new balance that needs to be calibrated by our biomed. 
>department before we can put it in service. The weights that we having 
>using for years are no longer the correct standard for calibrating the 
>scale and biomed tells us we need to order special weight that will 
>exceed $1,000. Does anyone know of a service that will come out and 
>calibrate the scale. That seems to be a more cost efficient way of 
>taking care of this problem. Any advice would be greatly appreciated.
>
>
>                          Bert Winters, Northwest community hospital
>
>                           BWINTERS <@t> NCH.ORG
>
>
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-- 
--
**********************************************
Geoff McAuliffe, Ph.D.
Neuroscience and Cell Biology
Robert Wood Johnson Medical School
675 Hoes Lane, Piscataway, NJ 08854
voice: (732)-235-4583; fax: -4029 
mcauliff <@t> umdnj.edu
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