mysticepipedon
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The only thing that would be relevant here is the materials and methods used by the labs in question.
A quick search found a Perkin-Elmer publication, stating that the DEA standard for testing potency is on a weight/weight basis: weight of the constituent divided by the weight of the total plant matter.
"Without specific methods of regulation from the individual states, procedures could follow the DEA guidelines (Drug Enforcement Administration). The primary analytical method is gas chromatography. Report is in %THC relative to original plant material (w/w)."
So anyway, looks like nine pages of bullshit on this topic.
A quick search found a Perkin-Elmer publication, stating that the DEA standard for testing potency is on a weight/weight basis: weight of the constituent divided by the weight of the total plant matter.
"Without specific methods of regulation from the individual states, procedures could follow the DEA guidelines (Drug Enforcement Administration). The primary analytical method is gas chromatography. Report is in %THC relative to original plant material (w/w)."
So anyway, looks like nine pages of bullshit on this topic.