GCMS test can tell the THC%. Hope you have the connections to someone in a lab, preferably a forensics lab. I believe this same type of test is used for urinalysis also.
Zimzum Reviewed by Zimzum on . Testing weed for THC is it possible to find out if weed contains THC? like if u had some plants that u think are marijuana but arent sure..just some way to test.....because i have some..and either it isnt marijuana.....or it is extremely low in THC Rating: 5