Quote Originally Posted by KurtV
van,

You can use a 25 cc sample instead of the 10 cc and get a little better precision; 0.2 vs. 0.5. I don't know that it matters that much, but it will give you a little better sense of where your water is.
When you do the 25 cc method, do you add more than 5 drops of the R0003? How about for the FC measurement - what does each drop of the R0871 equal in terms of FC?

Thanks!