STAR LAB5, 15 and 25 microns: reading hash and rosin terminology
What 5 µm, 15 µm and 25 µm mean as measurements, and why a micron number alone does not establish hash or rosin quality.
2026-10-03
Measurements & COA
Read certificates of analysis, reporting units, reference materials and method scope. Ask whether a result supports the comparison being made.
How to read a cannabis certificate of analysis
A practical reading checklist for cannabis COAs: sample identity, units, reporting limits, testing scope and the limits of a pass result.
2026-10-03
Behind the number: why laboratory reference materials matter
Understand the role of NIST hemp reference material in measurement quality, and why a reference material is not a certification of a commercial batch.
2026-11-03
Why moisture results need a method, not just a percentage
A 2025 NIST interlaboratory study explains why moisture measurements need method context before two reports can be compared.
2026-11-05
Why a validated test needs a named sample type
Official Health Canada guidance explains why analytical validation is tied to intended use and sample matrix.
2026-11-05