On 1/17/2014 9:19 AM, Larry Jaques wrote:
....

Mercury is exceedingly dense and heavy at 13534 kg/m3, but ~9oz does
seem overly much for a small, single-pole relay. (I wonder if it's a
weight v. volume mismatch I'm experiencing. I believe so.)

1 fluid ounce (fl oz) of mercury = 0.88 lb in mercury

So 252 grams would be roughly 0.64 fluid ounces. OK, that works for
me. That crap IS dense!
....

Yes, it's 20% more dense than Pb -- 13.6 vs 11.3 gm/cm^3

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