> I found that moving it from an ordinary table to a granite-top
> measuring table made a big difference in repeatability and stability.

Sean, our lab's fine balances were always on stone benches in a
temperature-controlled room and levelled. And treated with kid
gloves too. Dropping anything on the pan was very much frowned
upon. On the lighter steel or wooden benches they were only as
good as the general purpose scales

-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist