When doing a DPD CL test or a TA test, do you take the first number when the color changes initially, or the last number when the color gets more intense in that direction? For example, in the CL test, do you take the number when the pink goes away, or the next drop when it's /really/ clear?
Same with TA, do you wait till it turns pink, or wait till it's even redder to mark down the number?
Same with TA, do you wait till it turns pink, or wait till it's even redder to mark down the number?