["Little TE means very small particles. Remember that the Tyndall varies 
to the 4th power of the particle size, so if you halve the size, the 
Tyndall goes down by 16:1."]

Marshall, or anyone else if they feel inclined, I'd like to run something past 
you.
 
As ridiculous as this question may seem, I'd still like to hear what you may 
have to say.
 
I've broken my Tyndall cone effect into five catagories...Nil, Faint, 
faint/Good, Good, and Strong.
 
Not being the sharpest knife in the draw regarding mathematics, by using your 
calculation as mentioned here, is it possible to get an approximate {and I 
repeat, an *approximate* or Wild Arse Guess if you like} particle size using 
the strength of laser beam through solution?
 
Eg; Faint may be 'x' particle size, Good may be 'y' particle size etc etc, and 
praps all WAG's as I have indicated.
 
N.