Quote Originally Posted by waterbear
R-0004 is also stabilzied against high clorine levels but is meant to be used with a 45 ml water sample so acid and base demand tests can be run (usless tests except under very special circumstances that most people will never need).
I wasn't sure that 0004 had the neutralizer. So I stand corrected.

I certainly agree that acid and base demand tests are useless and a HUGE waste of test kit real estate.