The National Institute of Standards and Technology’s Cannabis Quality Assurance Program (CannaQAP) released a report which focuses on determining cannabinoid content in plant material samples, following earlier reports on moisture content and certain toxins and heavy metals.
This new report is part of a project designed to help testing laboratories ensure accuracy and precision in testing cannabis products.
Among the top-level findings was the importance of calibration. Testing was most reliable when the level of a substance being tested for fell near the middle of the calibration curve; lower levels were less accurate, while higher amounts required dilution.
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