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PUBLICATIONS

Cannabis Laboratory Quality Assurance Program: Exercise 3 Moisture Final Report

Published

Author(s)

Andrea Yarberry, Charles Barber, Laura Wood, Walter Wilson

Abstract

NIST launched a Cannabis Laboratory Quality Assurance Program (CannaQAP) in 2020 to assist laboratories in demonstrating and improving cannabis (hemp and marijuana) measurement comparability and competence. CannaQAP provided tools that allowed analysts and laboratories to assess how their in-house methods perform relative to the community and to an accepted value. This study in Exercise 3 of CannaQAP focused on the determination of moisture in one hemp material provided by NIST. This report provides a detailed description of the results of this study. The wide range of moisture content reported by participating laboratories using several different drying methods indicates the need for consistent hemp drying method(s) for accurate and precise measurements.
Citation
NIST Interagency/Internal Report (NISTIR) - 8574
Report Number
8574
NIST Pub Series
NIST Interagency/Internal Report (NISTIR)
Pub Type
NIST Pubs

Download Paper

https://doi.org/10.6028/NIST.IR.8574
Local Download

Keywords

CannaQAP, Cannabis, hemp, moisture
Metrology, Drugs and toxicology and Analytical chemistry

Citation

Yarberry, A. , Barber, C. , Wood, L. and Wilson, W. (2025), Cannabis Laboratory Quality Assurance Program: Exercise 3 Moisture Final Report, NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NIST.IR.8574, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=959822 (Accessed October 6, 2025)

Issues

If you have any questions about this publication or are having problems accessing it, please contact [email protected].

Created April 28, 2025
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