Lab Documentation Center
Last reviewed July 13, 2026.
Lab documents are useful only when they can be matched to the product, batch, lot, or sample they describe. A certificate of analysis should not be treated as a general promise about every product with a similar name.
This center explains how Industrial Hemp Farms organizes lab-document questions and what to check before relying on a report.
What a COA can show
A certificate of analysis can identify the submitted sample, the laboratory, the test date, the analytes measured, the methods or panels reported, and the results for that sample. Depending on the report, it may include cannabinoids, pesticides, heavy metals, residual solvents, microbes, mycotoxins, moisture, or other panels.
A COA does not automatically show that every package, later batch, blend, or product family has the same result. The match depends on the identifiers and the sampling plan.
What to match first
| Field | Why it matters |
|---|---|
| Product name | Confirms the report is intended for the same listing or material. |
| Batch, lot, or sample ID | Connects the report to the specific tested material. |
| Laboratory name | Identifies who performed the analysis. |
| Received, tested, and reported dates | Shows when the sample moved through the laboratory process. |
| Panels requested | Separates what was tested from what was not tested. |
| Units and reporting limits | Prevents incorrect comparisons between percent, mg/g, mg/mL, and non-detect results. |
Where lab documents appear today
Current product-page work keeps available COA material with the product gallery when a listing includes it. Use the visible gallery document as batch-specific evidence only when the identifiers match the selected product and package.
If a product page does not provide enough information to connect a report to the item being reviewed, treat the match as unconfirmed and contact support before relying on the document.
What ND means
ND generally means the laboratory did not detect the analyte above a stated threshold. It does not mean absolute zero. The laboratory's limit of detection, limit of quantitation, and reporting limit define the boundary.
For more detail, read "ND" Is Not Always Zero.
What measurement uncertainty means
Some hemp compliance results include a measure of uncertainty. That value belongs with the reported result and helps define how the result is evaluated under the applicable rule or method.
For more detail, read Measurement Uncertainty in Hemp Testing.
What one test can represent
A laboratory tests the sample it receives. The strength of the result depends partly on how the sample was collected, sealed, submitted, prepared, and analyzed. Sampling is why one report may be good evidence for a defined lot while still being poor evidence for unrelated material.
For more detail, read Sampling Matters.
Document questions to ask support
- Which report applies to this product and selected variant?
- What batch or lot identifier should I compare with the report?
- Was the report for raw material, a production lot, an ingredient, or a finished product?
- Which panels were tested, and which were not included?
- Is there a newer report for the current batch?