Hi,
When I test for FC, the sample remains clear, no matter how much DPD powder I add. This tells me that the FC is 0, but since I cannot turn the sample pink, how can I test the CC?
Thanks!
When I test for FC, the sample remains clear, no matter how much DPD powder I add. This tells me that the FC is 0, but since I cannot turn the sample pink, how can I test the CC?
Thanks!