Cannabis, Lab Proficiency Testing

PT samples in Hemp or Cannabis Dried Flower/Biomass: Shipping September 23

August 19, 2024

Choose AOAC Proficiency Testing Programs for a turn-key experience. Measure your laboratory’s analytical processes with no spiking or mixing required.  Our program samples are just like your routine or compliance […]

Lab Proficiency Testing, Cannabis

Now Accredited: Cannabis and Hemp Dried Flower PT

June 26, 2024

AOAC Proficiency Testing Programs offered in both Cannabis and Hemp dried flower/biomass matrices have been added to the program’s Scope of Accreditation. These programs provide ready to analyze samples in an […]

Cannabis, Lab Proficiency Testing

Now Accredited-Cannabis and Hemp Dried Flower PT

February 8, 2024

The AOAC Proficiency Testing Programs offered in both Cannabis and Hemp dried flower/biomass matrices have been added to the program’s Scope of Accreditation by A2LA. These programs provide ready to analyze […]

Cannabis, Contaminants, Lab Proficiency Testing, Microbiology

First Cannabis and Hemp Oil PT Program

January 31, 2024

On January 29, AOAC sent the first Oil proficiency testing samples in a Cannabis >0.3%THC and Hemp <0.3% THC Oil matrices for a pilot round. Like all AOAC PT programs, […]

Lab Proficiency Testing

Water Activity Added to PT’s Scope of Accreditation

September 14, 2023

In response to participant feedback, Water Activity was added as an analyte to the C02 Cheese Chemistry program. Water Activity is now also covered by AOAC Proficiency Testing program’s scope of […]

Lab Proficiency Testing, Contaminants, Food General

Now Available-Lactic Acid Bacteria Proficiency Testing

August 17, 2023

In response to participant feedback, AOAC has added Lactic Acid Bacteria (LAB) to its M02 Pathogen-free Proficiency Testing Program. For labs that do not routinely test for pathogens, AOAC offers […]

Lab Proficiency Testing

Proficiency Testing Division Gets an Intern

June 22, 2023

The Proficiency Testing division recently brought on an aspiring scientist to assist the staff and gain an understanding of the applied science that AOAC is involved in. Sam Scovitch is […]

Lab Proficiency Testing

Listeria Environmental Swab PT-Added to Scope of Accreditation

June 14, 2023

The Proficiency Testing division continues to develop new programs based on participant feedback or regulatory requirements.  The Listeria Environmental Swab (LS01) Proficiency Testing program was developed based on the additional […]

Cannabis, Lab Proficiency Testing

Ahead of the Times…. 

June 6, 2023

AOAC and its test material provider Signature Science LLC are sending the first > 0.3% THC Cannabis samples for Proficiency Testing to laboratories. Samples were shipped Monday, June 5. Participating laboratories […]

Cannabis, Lab Proficiency Testing, Research Institute

CASP Featured in Wiley Analytical Science Magazine

March 14, 2023

The CASP program was featured in an article in the March issue of the Wiley Analytical Science Magazine. AOAC contributors Allison Baker, Coordinator, Standards and Official MethodsSM; Scott Coates, Senior […]

Cannabis, Lab Proficiency Testing

Last Chance to Enroll for March 20th Round for Hemp & Cannabis PT Programs

March 9, 2023

This is your last chance to enroll for the March 20th round of the AOAC Ready-to-Analyze, No-Spiking-Required Hemp & Cannabis concentration/potency and chemical contaminants PT Programs (Six programs available) include […]

Cannabis, Lab Proficiency Testing, Contaminants, Microbiology

Coming soon! Cannabis/Hemp Microbiology Proficiency Testing

February 22, 2023

The AOAC Proficiency Testing staff has been working with its test material provider partner, Signature Science, LLC, to develop a PT program that addresses the need for quality microbiology PT […]

Cannabis, Lab Proficiency Testing

AOAC Cannabis/Hemp PT Statistics-Why Are We Different?

January 11, 2023

Many competitors’ Proficiency Testing (PT) programs use consensus-based statistics to establish assigned values, standard deviations, etc. and that may not be the best way to handle them, so AOAC has […]

Cannabis, Lab Proficiency Testing

Cannabis PT Samples Can Now Be Shipped to Canada

November 9, 2022

AOAC can now provide > 0.3% (low, med, high THC) Cannabis PT samples to Canada. This means AOAC can now ship both hemp and cannabis PT samples to Canada. To learn more […]

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    Annual Meeting, Inside Laboratory Management, Publications, OMA, Methods & Standards, Sections

    July/August 2026 Issue of ILM Now Available Online

    August 27, 2026

    The July/August 2026 issue of Inside Laboratory Management (ILM)is now available online for members only. The cover feature is on Revamping and Modernizing AOAC Official MethodsSM Program. AOAC is implementing a future-oriented […]

    Chemistry, Contaminants

    Public Comment: Total Fluorine & TOF SMPRs

    August 26, 2026

    The AOAC PFAS Program Total Organic Fluorine Working Group completed its drafting and review of the Total Fluorine and Total Organic Fluorine in Food Packaging Materials SMPRs and is now […]

    Chemistry, Contaminants, Methods & Standards, OMA

    Call for Experts: PFAS in Food Contact Materials

    August 26, 2026

    AOAC Official Methods of AnalysisSM (OMA) program is currently seeking subject matter experts in PFAS analysis and food contact materials to serve as expert review panel (ERP) members to evaluate […]

    Chemistry, Emerging Issues, Food General, Infant Formula and Adult Nutritionals, International Methods, Journal of AOAC, Methods & Standards, New Initiatives, Nutrients, Protein, Publications

    Call for Methods: Molecular Weight Distribution

    August 26, 2026

    DEADLINE:  Friday, February 26, 2027 Characterization of Molecular Weight Distribution in Dairy Protein Hydrolysates AOAC INTERNATIONAL (AOAC) invites method developers to submit methods for First Action consideration and possible evaluation through […]