ORACL Cannabis Testing Labs Sample Certificate of Analysis (COAs) Keith April 10, 2019 Uncategorized 0 Comments Cannabinoid Potency COA Sample COA Cannabinoids – Potency. Medical Cannabis Testing. Medical Marijuana Testing. Leave a Reply Cancel reply Save my name, email, and website in this browser for the next time I comment. Notify me of follow-up comments by email. Notify me of new posts by email.