The USDA Final Rule will require hemp producers to test their crop for Total THC calculated on a dry weight basis starting in 2022.

We offer two options for our Dry Weight Potency test, one is for USDA compliance and the other is for internal R&D. Our Dry Weight Potency test analyzes 15 cannabinoids, provides Total THC content, the moisture corrected result, and the Measurement Uncertainty (MU) of the testing method.

Dry Weight Potency (USDA) testing

Dry Weight Potency for USDA Compliance

Who should order this test?

  • If you are submitting samples for USDA Final Rule compliance, choose this option.
  • Your state may require a third-party sampling agent to collect your official compliance samples.

Test Details:

  • We analyze 15 cannabinoids (Δ9 THC, THCa, CBD, CBDa, Δ8 THC, THCV, THCVa, CBDV, CBDVa, CBN, CBNa, CBG, CBGa, CBC, and CBCa).
  • Total THC (Δ9 + (THCa * 0.877)).
  • Moisture corrected value.
  • Measurement Uncertainty (MU) of the testing method.

Sample Preparation:

  • Botanacor will dry and grind the sample per the USDA’s testing requirements.

Sample Size:

Turn Time:

  • 4 business days

Dry Weight Potency for Internal R&D

Who should order this test?

  • If you are submitting samples for internal R&D, choose this option. Please keep in mind that this test option is not intended for USDA Final Rule compliance.

Test Details:

  • 15 cannabinoids (Δ9 THC, THCa, CBD, CBDa, Δ8 THC, THCV, THCVa, CBDV, CBDVa, CBN, CBNa, CBG, CBGa, CBC, and CBCa).
  • Total THC (Δ9 + (THCa * 0.877))
  • Moisture corrected value
  • Measurement Uncertainty (MU) of the testing method.

Sample Preparation:

  • Botanacor does not provide additional drying and grinding for

Sample Size:

Turn Time:

  • 4 business days

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.