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Testing & Labels · Learning guide 118 of 216
Also called: mg/g
A concentration unit expressing milligrams of an analyte per gram of material. Ten milligrams per gram equals one percent by mass.
Start with the context
Testing and label terms connect a physical sample, an analytical method, a result, and the item offered to a patient or consumer.
Milligrams per gram may also appear as mg/g. An alias can help with search and recognition, but it does not create a different scientific or legal meaning unless a source defines one.
“In this context, Milligrams per gram means: A concentration unit expressing milligrams of an analyte per gram of material. Ten milligrams per gram equals one percent by mass.” The definition is kept separate from any claim about an individual outcome.
The goal is not memorizing jargon. It is knowing what a word lets you conclude—and where the conclusion must stop.
A trustworthy result begins with sample identity and chain of custody, then depends on representative sampling, validated methods, calibration, reference materials, reporting limits, units, quality controls, and clear interpretation.
Laboratory precision does not eliminate sampling uncertainty. A certificate of analysis describes the material submitted under the reported method and date; it does not automatically represent every package, harvest, or item with the same name.
A laboratory result is produced through people, instruments, calibration, methods, samples, and quality controls—not by the product label alone.
Image: Perkin-Elmer Corporation / DPLA · No known copyright restrictionsInterpretation boundary
The definition should make a claim clearer, not make it sound more certain than the evidence allows.
Not detected does not necessarily mean absolute absence, and not tested is not the same as passing. A potency or terpene panel is not a contaminant panel unless those analytes were included.
Maine’s medical and adult-use systems have different testing requirements. A careful review identifies the program, matches the batch identifier, and checks which categories were actually tested.
Milligrams per gram alone does not establish: identity beyond its documented scope, contaminant safety, a guaranteed experience, a medical benefit, a safe dose, or legal authorization.
Put the term to work
Source trail
These sources provide regulatory, scientific, public-health, or laboratory context. Their presence does not mean every sentence is a direct quotation or that a broad source proves a specific medical claim.
Editorial framework reviewed August 9, 2026. Maine requirements should always be verified before acting.
Educational information only. This learning page is not medical or legal advice and does not establish that a cannabis product is safe, effective, compliant, or appropriate for an individual.