ASTM - D8375 - ILS Lab Volunteer Opportunity (ILS# 1829)


Good afternoon,

ASTM International and Committee D37 on Cannabis are in the process of organizing an Interlaboratory Study (ILS) 1829.  We are currently looking for laboratories able to perform D8375 - Test Method for Determination of Cannabinoid Concentration in Dried Cannabis and Hemp Raw Materials using Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS).   


  • Participating laboratories must be located in Canada

  • Membership in ASTM International is not a requirement for participation.

  • Involvement in this study will have a direct impact on the Standard, utilized by laboratories worldwide.

  • Participating laboratories will be listed in the resulting ASTM Research Report.

  • Participants will receive a complimentary copy of the finished Research Report, which will include coded data that cannot be identified to specific labs.

  • The study will involve testing 4 samples each of dried cannabis or hemp for Δ9-THC concentration, THCA concentration, CBD concentration, CBDA concentration, CBG concentration, CBGA concentration, CBGV concentration, CBGVA concentration, CBN concentration, CBNA concentration, CBV concentration, CBC concentration, CBCA concentration, THCV concentration, THCVA concentration, CBDV concentration, CBDVA concentration, C​BL concentration, CBLA concentration, and Δ8-THC concentration.

  • 3 replicates of each material will be analyzed to determine intralaboratory repeatability.

  • Enough of all required test specimens will be supplied to the participating laboratories free of charge. Two packets will be supplied: One for method familiarization and one for reported values.

Please provide ILS your following laboratory information:

Lab Name:

Contact Name:

Email:

Telephone number:

Shipping Address:


If you have any questions, or would like more information on the study, please contact the Technical Contact for this study:

Garnet McRae

(613)-993-2521

[email protected]


For general ILS questions, please contact [email protected].

Thank you for your assistance with this important project.


ASTM - D8375 - ILS Lab Volunteer Opportunity (ILS# 1829)
S3 Collective June 18, 2025
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