Work Item Number: WK71840 Date:09-24-20

Ballot Rational:

Preparing a test sample of hemp/inflorescence is a critical step in the overall analytical measurement and obtainment of accurate results. To date there are many different technologies that cover a broad scope of sample sizes, however within the scope of this standard practice <100gram sample sizes are considered. In general cannabis/hemp samples are heterogenous in nature, thus relying heavily on robust sampling strategy which directly effects the downstream sample processing. An overview of sample comminution processes includes the following: cutting, blending, grinding, chopping, milling, cryomilling- all of which reduces the particle size and the fundamental error (FE).  This practice is to provide a general overview of required steps and technologies to obtain a test sample size with uniform particle size as well as how to minimize the loss of volatile components such as terpenoids and pesticide residues. 

Standard Practice for Sample Preparation Hemp Inflorescence for the Purpose of Analyses