I am reading this article Medical Cannabis Potency Testing Project - Autumn 1999

and it appears that THC percentage is determined by a "standard methanol extraction technique" :thumbsup:

On another note, they detected 28 percent CBD in one sample, the runner up had 5 percent CBD. What's up with that? :wtf:
jessem98 Reviewed by jessem98 on . Testing THC Levels Materials- Scale Bud buster with keif screen and weed Common sense Gram test 1. scale an amount of weed in(1 Gram is what Im testing in) 2. Take Bud and put it in buster with keif screen and start busting up. 3.when down take raw bud out and weight it in. Rating: 5