When testing for CC (K-2006 test kit) I notice after adding one drop, using the 10 ml sample size (1 drop= 0.5 ppm), of the R-0871 the faint pink color will turn clear indicating CC is </= 0.5 ppm. After the sample sits there for 10 to 15 seconds it will again turn an even more faint pink. Of course by adding another drop of R-0871 it will clear again. Is my CC=0.5 or 1.0 ppm?
