[RASMB] question about counter balance

Jia Bei Lin jiabei at uab.edu
Thu Jan 6 15:29:37 PST 2011


Dear professors and colleagues,

       I'm in the learning process of using the Beckman XL-A analytical ultracentrifuge. There are two counter balances in the lab, one of them is 33.6 grams and the other is 31.7 g just by themselves (no weight inside). Why are they made in different weight? They look identical from outside, what's inside made the difference?


     Thank you very much.  Happy new year.

Jiabei Lin
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