ISO 17025

Definition

ISO 17025 is the international quality standard for testing and calibration laboratories. CBD COAs should come from labs accredited under this standard.

ISO/IEC 17025 specifies general requirements for the competence, impartiality, and consistent operation of laboratories. An accredited lab has been audited by a qualified external body to confirm it meets the standard.

When evaluating a CBD COA, check the lab section for an ISO 17025 accreditation number. If the lab isn't accredited, the test results carry less weight.

Next step

Review our lab reports, batch by batch →

Related terms

COA (Certificate of Analysis)
A COA is a document from an accredited third-party lab certifying what is — and isn't — in a CBD product.
Third-Party Testing
Third-party testing means a CBD product was analyzed by an independent, accredited lab — not by the manufacturer themselves.

Keep exploring

How botanCBD is made and tested
Our sourcing, formulation, and lab process
6 best third-party-tested CBD brands
Brands that publish real, current COAs

Last reviewed: August 7, 2026