First of all, use the 10ml sample instead of the 25ml sample to save on your reagents. Each drop will be 0.5 instead of 0.2 but who cares. That is a close enough reading.

1. Fill the tube to the 10ml mark.
2. Add a scoop of DPD powder and swirl to mix. The directions tell you to add two scoops, but if one scoop turns it pink, no need to add the second scoop.
3. Add drops of the R-0871, swirling after each. When the sample turns clear, multiply the number of drops by 0.5 and that is your FC reading.
4. Add 5 drops of R-0003. If the sample does not turn pink, then your CC reading is 0. If it does turn pink, add drops of R-0871 as before, swirling after each drop, until it turns the sample clear. Multiply the number of drops by 0.5 and this is your CC reading.

Wait until you are finished to write down your notes.

Hope this helps. It gets easier after you do it a few times.