Match the shipment identity
Verify supplier, exact code, batch, product form, quantity and agreed document revision. The quoted and delivered material should identify the same grade that passed the trial.
Check package marks and physical condition before stock is mixed with accepted material. Record damaged or uncertain units through the plant's hold procedure and preserve their identity during investigation.
Read methods as well as values
Confirm units, concentration conventions and analytical methods for the agreed release properties. Distinguish typical characterization in the TDS from guaranteed lot limits.
For viscosity, charge or active content, an unexplained number cannot establish equivalence between suppliers. Ask which tests are routine lot release and which are periodic characterization.
Resolve application-dependent documents
Request the current grade-specific SDS and appropriate handling instructions. Where the end use imposes purity or other eligibility requirements, obtain the evidence for that exact code and intended use.
Do not infer potable-water, food-contact or papermaking eligibility from cationic charge alone. Keep any responsible technical or regulatory approval separate from the general dewatering performance record.
Use the qualified receiving comparison
Prepare incoming and retained approved material under the same water, concentration, mixing and age. Where required, compare on the same current feed using the original application method.
If response differs, investigate feed, preparation, storage and delivery before declaring a batch failure. The sample-to-shipment record makes that comparison meaningful by retaining more than a best-jar photograph.
Agree release and investigation responsibilities
Specify which missing documents, analytical failures or unacceptable performance cause a hold. Identify who can authorize release and how supplier evidence or concessions will be recorded.
Send document and lot questions through the CPAM shipment-review enquiry. Reference the approved code and agreed methods on repeat orders, with notification of changes rather than accepting an untested substitute under the same family name.
A receiving hold-and-release sheet
List the approved code and lot, required document revision, agreed test and packaging checks, retained-sample identity and any application comparison needed. Enter actual results and the responsible review decision. A missing value should be clarified rather than copied from a typical TDS range.
Keep damaged-package investigations separate from an analytical or process-response concern. When incoming and retained material differ, attach preparation and current-feed records so the supplier can investigate a controlled comparison. Record any concession explicitly and limit it to the affected shipment; silently changing acceptance criteria after arrival weakens both technical control and the repeat-order specification.