A Certificate of Analysis is often shortened to COA. It records results for the sample or batch described in the document. Before looking at a purity figure, check that you are reading the report for the product being offered to you. A report for a different batch does not establish the results for your order.
1. Match the Product and Batch
Start with the product name and batch reference. Compare them with the proposed order or product label, and check the report date. If the product has more than one version, make sure the version is clear too. A short catalogue name alone may not tell you everything. If a reference is missing or the names differ, ask for clarification before relying on the report.
2. Read the Result with Its Method
A result needs context: what was tested, which method was used and how the result is reported. Do not treat one purity number as a complete description of the product. Read the units and the specification alongside it. If you need a particular test or analytical record, name it in your enquiry so the team can check whether that information is available.
3. Keep the Report with Your Order
Once the batch is agreed, keep the report with your quotation and order records. Check again if the proposed batch changes before dispatch. For a small order, a product name and order reference will help us locate the information; for a larger purchase, include any documentation your team requires during the quotation stage.
Illustrative image. Product and order details are confirmed separately.
QUICK CHECK
Before You Send Your Enquiry
Keep these four details with your enquiry or order.
Product name
Match the name and version.
Batch reference
Match the proposed order.
Test and result
Read the method, units and result.
Saved copy
Keep the report with your order.
