Key Takeaways
A certificate of analysis follows a predictable layout, with identifying details at the top and test results below. Reading one well comes down to matching the batch, checking who ran the test and knowing which sections to look for.
Start at the top and confirm the report matches your product and batch, then check which lab ran it. After that, read the cannabinoid results and look for the contaminant sections.
Check that the product name and batch or lot identifier match what is printed on your package.
A report is only useful if it describes the thing you bought. Brands make many batches, and each one is tested separately, so a report for a different batch tells you very little about yours.
The header usually also shows when the sample was received and tested. An old report attached to a fresh product is worth a question.
The lab’s name and contact details should appear on the report, along with its accreditation.
You want to see an outside laboratory named clearly. Many labs add a code or link that lets you confirm the report with them directly, which protects against altered documents.
If the lab is not named, or the report looks like a brand’s own summary of results, ask for the original. Our earlier post on reading an extract label covers the packaging side of the same habit.
Look for a list of cannabinoids, each with a measured amount, and compare the main ones against the label.
Labs present amounts in a few different ways, commonly as a share of the product by weight and as an amount per unit or per package. The table below explains the terms you are likely to meet.
| Term on the report | What it means | How to use it |
|---|---|---|
| Cannabinoid name | The compound being measured | Find the ones on your label |
| Result | How much the lab found | Compare against the label |
| ND | Not detected | The lab did not find it |
| LOQ | Limit of quantitation | The smallest amount the lab can measure reliably |
| Total THC | Combined THC figure | A combined figure, listed separately from Δ9-THC |
| Pass or fail | Result against a set limit | A quick read on each contaminant panel |
They show whether the lab screened for things like solvents, pesticides, heavy metals and microbials, and what it found.
Each panel normally lists what was tested and gives a pass or fail against a limit. You do not need to follow every line. What matters is that the panels are present and that nothing is marked as a fail.
Some reports only cover potency. That is not a red flag by itself, though a fuller report tells you more about how the product was grown and made.
Ask the brand to explain it, and expect a straight answer.
Small differences between a label and a result are normal for a plant product. A large gap, a mismatched batch or a missing lab name deserves a question before you buy again.
Every product at Pure Standard Extracts, including the vapeables range, is third-party lab-tested and kept to ≤0.3% Δ9-THC. If any line on one of our reports is unclear, send us a message and we will talk you through it.
IMPORTANT DISCLAIMER: The information in this article is for educational purposes only and should not be construed as medical advice. Always consult a healthcare professional before using any hemp, CBD, or related products, especially if you have medical conditions, are pregnant or nursing, or take prescription medications. Pure Standard Extracts products contain ≤0.3% Δ9-THC and are intended for adult use (21+). Our products are not FDA-approved to diagnose, treat, cure, or prevent any disease.
The product name and batch or lot identifier. They should match what is printed on your package.
Not detected. The lab did not find that compound in the sample at a level it could detect.
Limit of quantitation. It is the smallest amount the lab can measure reliably for that compound.
Many labs include a code or link on the report so you can confirm it with them directly.
Yes. Each batch is tested separately, so a report for another batch says little about the product in your hand.
It confirms cannabinoid content. A fuller report with contaminant panels tells you more about how the product was made.
Hemp is a plant product, so small variation between batches is normal. Large gaps are worth asking about.
In the cannabinoid section, usually listed by name and often summarized again in a total THC line.
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The products on this site are not for use by or sale to persons under the age of 21 depending on the laws of your governing state or territory.
PRODUCTS ON THIS SITE CONTAIN A VALUE OF 0.3% OR LESS Δ9-THC (OR NO MORE THAN 0.3% Δ9-THC).
THESE STATEMENTS HAVE NOT BEEN EVALUATED BY THE FOOD AND DRUG ADMINISTRATION. THIS PRODUCT IS NOT INTENDED TO DIAGNOSE, TREAT, CURE, OR PREVENT ANY DISEASE. THE DELTA-9 TETRAHYDROCANNABINOL CONTAINED IN THIS PRODUCT DOES NOT EXCEED 0.3% ON A DRY WEIGHT BASIS. DO NOT USE IF YOU ARE A PREGNANT, NURSING, SUFFERING FROM ANY MEDICAL CONDITIONS(S), OR ON MEDICATION. CONSULT YOUR HEALTHCARE PROVIDER BEFORE TAKING. KEEP OUT OF REACH OF CHILDREN AND ANIMALS. THIS PRODUCT MAY IMPAIR YOUR ABILITY TO DRIVE OR OPERATE MACHINERY.
