TECHNICAL GUIDE / 2026-10-02
Short answer. Receiving should verify that the delivered product, grade or fraction, quantity, packing and lot documents match the purchase order. Then apply the agreed sampling and material tests before release. Physical receipt is not the same as technical acceptance.
Separate arrival from acceptance
When brown fused alumina arrives, the warehouse can confirm that packages were received without declaring the material technically approved. Start with the purchase order and packing list. Count units, inspect visible package condition and match labels to the complete F or P grade, refractory fraction, powder code or special processing item. Record damage, missing labels or discrepancies while the shipment and carrier information are still available.
Do not infer product identity from color or bag style. Several brown fused alumina forms can look similar in a warehouse. If the order contains multiple grades, keep them segregated until each is reconciled. A physical count may pass while a batch report is missing or a label names a different product. Use a hold status until the documentation and required tests are complete under the plant's procedure.
| Arrival check | Evidence |
|---|---|
| Units and quantity | Packing list against actual receipt |
| Labels | Full product, grade and lot |
| Condition | Damage or contamination record |
| Segregation | Separate grades and held material |
Reconcile the document set
The delivery note, packing list, invoice, PDS, agreed technical sheet and batch report have different jobs. Confirm that the commercial documents describe the units delivered and that the batch report belongs to the lot on those units. The PDS can help identify the model, but a reference sheet is not a substitute for the agreed acceptance limits. Check revision dates so an obsolete specification is not used accidentally.
If a shipment contains more than one lot, map each lot to its containers and report. A supplier may provide a combined document; receiving still needs a clear way to tell which result applies to which physical material. Resolve missing or inconsistent paperwork before the bags are consumed. Once material is mixed into a production batch, a clerical uncertainty becomes a traceability problem.
| Document | Receiving question |
|---|---|
| Packing list | What was shipped? |
| PDS | Which product is described? |
| Technical sheet | What are the accepted values? |
| Batch report | What did this delivered lot measure? |
Sample and test under the agreed plan
The technical sheet or quality plan should define the lot, sampling method, tests and pass limits. Draw representative samples from the specified containers or bulk portions; label them with model, lot, date and sampler. Store a retained sample if required. Do not apply an F grit sieve test to a refractory fraction or copy a chemical limit from a neighboring product merely because both are brown fused alumina.
If results are delayed, the material should remain under the site's hold rule until release authority acts. A test failure needs the nonconformance procedure, not an improvised retest. Compare the measured values with the current agreed limits and method. Where supplier and buyer reports differ, preserve both and investigate the sample and test basis. This makes the receiving decision defensible rather than dependent on who read the first number.
| Technical control | Purpose |
|---|---|
| Lot definition | Sets material covered by the decision |
| Sampling plan | Supports representative result |
| Method and limit | Creates valid pass/fail test |
| Release authority | Prevents premature production use |
Complete the handoff to production
When a lot passes, record the release decision and storage location. Production should receive the same item identity and lot number that quality tested. If the material is split across warehouses or combined with another lot, record the movement and quantities. If a shipment is rejected or conditionally accepted, keep the disposition visible to purchasing and operations so an old label does not return the material to normal stock.
In an inquiry to CHAOYAN, state the full product model, packing, label fields, batch report format and receiving test requirements. The supplier can prepare the shipment around a clear expectation. A smooth receipt depends on those details being agreed before dispatch, not on a warehouse team trying to reconstruct the purchase intent when a truck arrives.
Selection guidance
Use a two-stage receiving decision: physical receipt and document reconciliation first, then technical sampling and release. Keep unverified lots segregated until the order's acceptance requirements are met. Record the release date and person responsible in the warehouse system.
Common mistakes
- Treating the packing list as a technical test report.
- Releasing material with an unreadable grade label.
- Testing a convenient sample without the agreed lot method.
- Mixing an unaccepted lot into production before disposition.
Frequently asked questions
Does a delivery note prove material conformance?
No. It records shipment information. Conformance follows the agreed technical sheet and appropriate batch or receiving tests.
What if the packaging is damaged but the batch report passes?
Record the damage and follow the buyer's inspection and hold procedure. The report does not establish that the affected physical units remained acceptable in transit.
