Technically, the difference in weight between an object and the ash left after incinerating it at 1100 degrees C. Not often a repeatable experiment.
--Jumlian
Measured on a ThermoGravimetricAnalyser?, or TGA; essentially a very sensitive balance with a furnace attached. Unfortunately, in StuartFraser's experience, a rather *too* sensitive balance; or at least too sensitive to be put next to the door to the solids lab, where his was. Result - anyone who walked in during a test caused a spike in the TGA plot....
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