The purpose of this document is to provide guidance to testing facilities on the selection of applicable methodology pertaining to the testing of cannabis products. The methods outlined in this library are applicable by comparative use in areas similar to the testing of cannabis product; it should not, however, be construed that these methods are necessarily fit-for-purpose in all aspects of cannabis testing. The references outlined in this document lack complete validation or matrix extension specific to cannabis products and thus, require in house laboratory validation prior to implementation. Any selected methods must be shown as fit-for-purpose through in-house validation. As standard methods emerge and are accepted, this library will be updated and standard methods will be identified as “preferred” (a standard method is defined as a method that has been validated in multiple laboratories and has been widely adopted). Standard methods require only laboratory verification rather than full validation prior to implementation. Any method employed that was not derived from a standard method must be rigorously tested and validated prior to use in the analysis of cannabis product.
Note: The sources listed in this document are not exhaustive; other methodologies may be appropriate for use. Due to the constant evolution of scientific analytical methods, this reference library represents a living document that will be updated as needed. Marijuana testing facilities are encouraged to consult with the CDPHE certification program during selection and implementation of testing methodologies.