[RASMB] centerpiece info

[Walter Stafford]

Hi -
I thought it was 45K. We used them a lot at 60K with sapphire windows for the UV/VIS scanner.
Walter

On Jul 15, 2015, at 15:04, Laue, Thomas <Tom.Laue at unh.edu> wrote:

> Hi-
> Yes, they are Kel-F and rated for a much lower rotor speed because the Kel-F is soft. They aren't dangerous at high speeds, but they do get ruined.
> Maybe Walter can remember the top speed- my recollection is 40K.
> Best wishes,
> Tom
> 
> -----Original Message-----
> From: RASMB [mailto:rasmb-bounces at list.rasmb.org] On Behalf Of Chad Brautigam
> Sent: Wednesday, July 15, 2015 3:00 PM
> To: schirfv at biochem.uthscsa.edu; rasmb at list.rasmb.org
> Subject: Re: [RASMB] centerpiece info
> 
> Hi, Virgil,
> 
> You might want to try a dive into the RASMB archives; these are apparently Kel-F/Al centerpieces and according to Marc Lewis, they were discontinued because the Kel-F could dislodge from the Al.  Sounds like it's not worth the risk.
> 
> Best,
> Chad
> 
> -----Original Message-----
> From: RASMB [mailto:rasmb-bounces at list.rasmb.org] On Behalf Of Virgil Schirf
> Sent: Wednesday, July 15, 2015 1:50 PM
> To: rasmb at rasmb.org
> Subject: [RASMB] centerpiece info
> 
> Good afternoon,
> 
> I found some centerpieces that look like epon-charcoal wrapped with what I presume to be an aluminum edge. The part number is 331430 but I can't find it listed on the Beckman website. Does anyone have any information on these centerpieces - max speed, dimensions same as current epon-charcoal or not, etc? They appear to be in excellent condition.
> 
> Thank you,
> 
> Virgil
> 
> 
> 
> ________________________________________________
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> Virgil Schirf
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Walter Stafford
wstafford3 at walterstafford.com

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