Accreditation bodies, like A2LA, accredit PTPs to ISO/IEC 17043, the general requirements for the competence of proficiency testing providers, to provide third-party assurance and give customers confidence in the quality of the program. PT Canada (PTC), an A2LA accredited proficiency testing
Overcoming Proficiency Testing Roadblocks for Cannabis Labs
In the cannabis industry, proficiency testing (PT) is a necessary, yet oftentimes difficult activity because of U.S. federal laws surrounding the plant. It allows growers and producers to test their products for a variety of things, including potency and THC content, pesticide residues, residual