The USDA Interim Final Rule will require hemp farmers to test their crop for Total THC calculated on a dry weight basis. Depending on your state or tribe, this compliance test may take effect in either 2020 or 2021.

Our Dry Weight Potency test will analyze 15 cannabinoids, provide Total THC content, the moisture corrected result, and the Measurement Uncertainty (MU) of the testing method.

Dry Weight Potency (USDA) testing

Test Information

Analytes tested:

  • 15 cannabinoids (Δ9 THC, THCa, CBD, CBDa, Δ8 THC, THCV, THCVa, CBDV, CBDVa, CBN, CBNa, CBG, CBGa, CBC, and CBCa).

USDA lab reporting requirements:

  • Total THC (Δ9 + (THCa * 0.877))
  • Moisture corrected value
  • Measurement Uncertainty (MU) of the testing method.

Sample Size:

  • USDA compliance sample size: The sample size for compliance testing is determined by your state’s sampling requirements. Check with your official sampling agent or review our state-by-state guide.
  • If you would like to submit a sample for internal quality control, non-USDA reporting, the standard potency test sample size is 2 grams.

Turn Time:

  • 4 business days

USDA Laboratory requirements

The USDA requires that the testing laboratory have the following certifications/registrations:

  • ISO 17025 accreditation. Botanacor is ISO 17025 accredited by A2LA (American Association of Laboratory Accreditation).
  • DEA registration. This requirement has been postponed by the USDA until October 31, 2021 or until the final rule is published, whichever comes first. Botanacor’s application has been submitted to the DEA and is pending approval.

How does Botanacor perform the analysis?

Dry Weight Potency testing is conducted on state-of-the-art Agilent Technologies HPLC instrumentation. High Performance Liquid Chromatography with Diode Array Detection allows us to run a spectral analysis for confirmation of results. Having the right equipment is critical, but it is only one piece of the Botanacor Validated Laboratory System.

How is moisture analyzed?

We correctly account for moisture content in your hemp sample using Karl Fischer titration. Our method (TM21) is included on our ISO 17025 accreditation.