China Amines Co., Limited

An N-methyldiethanolamine (MDEA, CAS 105-59-9) shipment can arrive with the expected number of drums and still leave two questions for receiving. How much product was delivered, and which certificate covers each lot? The packing list, package labels and batch certificates answer different parts of that check.

Reconcile package count and net weight

Compare the delivered package count with the packing list, then check the net product weight per package and the total net weight against your purchase order. For example, 80 drums listed at 200 kg net each should total 16,000 kg net. If fill weights vary by package, use the individual net weights shown in the shipment records. When investigating a discrepancy, check whether the figure you are comparing includes drums, pallets or other packaging.

Match each lot to its certificate

Record the lot numbers on the package labels and match them to the certificates of analysis (COAs). If the shipment contains more than one lot, check that every lot has a corresponding certificate. Where the packing list shows quantities by lot, compare that breakdown with your receiving count. Keep the lot reference with the inventory record so the quality team can retrieve the correct COA when the material is issued.

Resolve discrepancies before inventory release

If a label is unreadable, a COA is missing or the weights differ across documents, record the affected package IDs and ask the supplier for a corrected document or a written explanation. A photo of the label and the relevant packing list line gives the supplier a specific discrepancy to investigate.

Specify your receiving requirements when you order

For an MDEA quotation, send China Amines Co., Limited your required grade, total net quantity, preferred package type and fill weight, and destination port. Include any lot-level packing list or batch COA requirements so the quotation can reflect how your warehouse receives and releases the shipment.

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