Mary, I think that you are advocating a blank run because you do not have
necessary understanding how to do accurate calorimetry and more
importantly, how to use simplest possible methods to calibrate the
calorimetry.
(Lots of people such as Levi and Lewan had insufficient understanding for
doing simple calorimetry from steam. E.g. Levi did sub-boiling calorimetry
18h test that was inherently bad and inaccurate method, because he was
unable to think how to measure the enthalpy from steam. Also Celani
suggested to Rossi super expensive calorimetry because he was unable to
think in simple terms.)
Joshua and I have suggested, that blank run could be done in paraller with
the real test. But there is again the problem that we get better resolution
for the calorimetry if we do two real ECat tests in paraller, than if one
is real and other is just a dummy.
—Jouni