July 22, 2026

AOAC Microbial Contaminants in Hemp Proficiency Testing (CHM01) – SHIPMENT DATE 10/05/2026 (Enroll by 9/04/2026)

Newly accredited to ISO/IEC 17043, the AOAC Microbial Contaminants in Hemp (CHM01) Proficiency Testing Program is designed specifically to help ISO/IEC 17025 laboratories demonstrate technical competence, satisfy accreditation requirements, and meet state regulatory expectations.

CHM01 is one of the few hemp microbial proficiency testing programs that supports both qualitative and quantitative testing. Laboratories can report results using plate count methods/test kits and gene expression methods/test kits (qPCR, RT-qPCR, etc.), with sufficient sample provided to perform both analytical approaches.

Analytes Include:

  • Aspergillus
  • Shiga toxin-producing E. coli (STEC)
  • Salmonella
  • Aerobic Plate Count (APC/TAC)
  • Coliforms
  • Generic E. coli
  • Bile-Tolerant Gram-Negative (BTGN/Enterobacteriaceae)
  • Yeast & Mold

Each study includes four qualitative samples and two quantitative samples, consisting of inoculated materials and negative controls to provide a realistic assessment of routine laboratory performance.

Why ISO/IEC 17025 Laboratories Choose CHM01

  • Support Accreditation – Demonstrate ongoing competence through participation in an ISO/IEC 17043-accredited proficiency testing program.
  • Meet Regulatory Expectations – Generate performance data in a clear, easy-to-interpret format suitable for state regulatory programs.
  • Strengthen Staff Competency – Evaluate analyst performance using realistic hemp matrices.
  • Verify Laboratory Performance – Monitor method accuracy, consistency, and continuous improvement over time.

Whether your laboratory is preparing for accreditation, maintaining compliance, or strengthening its quality management system, AOAC CHM01 provides the confidence that comes from participating in a trusted, internationally recognized proficiency testing program.