From: George Huczek (ghuczek@sk.sympatico.ca)
Date: 01/21/01-12:29:45 PM Z
A few weeks ago there was a discussion on how to calibrate an instrument to
measure relative humidity.
I just got a sensitive hydrometer and need to calibrate it. I will be
using the technique shown on this science website for kids:
<http://www.miamisci.org/hurricane/psychrometer.html>
instructors, for alt processing classes, see also :
<http://ericir.syr.edu/Virtual/Lessons/Science/Physical/PHY0007.html>
It's really easy to do, if you have a few darkroom thermometers and a fan
which blows cold air. Just thought I'd pass it along to save some of you
the trouble of making lithium chloride slurries ;) All you do is make a
psychrometer. The instructions on the website allows you to determine the
RH% very quickly.
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