Please understand, @sbc1 , the alkaline Beam test is a qualitatively accurate colorimetric test for the presence of CBD, but ONLY…
A. Within the first 30-60 seconds of mixing the sample & reagent, and
B. Down to about 1 or 2% CBD.
Also, is that even what you’re asking about?
If not, I fear you need to see a different post I just happened to make.