Your thc level must fall below 50 ngml marked with the red line to pass a standard drug test. The resulting number reflects the milligrams of thc present in one gram of your material. There is a variety of ways to measure thc and cbd concentrations. The most common technique is called high performance liquid chromatography hplc. Javascript must be enabled in your browser. A simple guide to pot thc and how much is too much.
In most parts of the world where thc is labeled as a controlled substance the acceptable legal concentration youre looking for is 5 nanograms per milliliter of blood or less. How do labs measure thc and cbd levels. The quality of the thc product and the concentration of the cannabinoid therein are at the top of the list. Because of how rapidly thc breaks down in the body a fresh sample will usually have deteriorated before it can be processed. In partnership with usc annenberg and los angeles times graphics. By alejandra ramos barreda kristine de leon and stefani urmas.
A wide variety of variables can affect what a certain thc dose does to your body. Simply move the decimal in the thc percentage one place to the right. Calculating your thc dosage in mg once you know your thc we can do some simple math to calculate the milligrams mg of thc per gram. Fifty nanograms of thc metabolites per milliliter defines a presumptive positive by nida national institute on drug abuse certified labs. The most basic unit of marijuana measurement is the gram.
Gallery of Thc Body Measurement
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