A lower bulk price per kilogram does not establish the lower cost of using cationic polyelectrolyte. Procurement should compare the same delivery scope and connect product consumption to a qualified sludge treatment result.
Separate product mass from active mass
State whether a quotation and trial use commercial powder mass or a corrected active basis. Request the supplier definition behind solids or active content instead of assuming every reported solids value represents the same calculation. The dose calculation procedure keeps concentration and dry-solids units explicit.
Match delivery and payment scope
Compare currency, quoted quantity, package, destination, Incoterm, freight scope, payment terms and validity period. Keep taxes or destination charges visible where applicable. A factory-gate quotation and a delivered quotation cannot be ranked as though logistics were free. Do not infer lead time or stock availability from the product name.
Use qualified consumption, not a promise
Multiply the tested consumption by the matching quoted product cost, using a consistent solids basis. Keep the feed and machine conditions attached. If a supplier states a lower dose without a matched trial, label that as an unverified proposal rather than a saving. Compare liquid return and cake handling under the same production load.
Show uncertainty before award
Present the measured treatment-cost range and the assumptions around freight, make-down water, throughput and disposal. Do not double-count savings shared between cake mass and transport. Where trials are incomplete, place a limited qualification order rather than projecting a single bench result across an annual contract.
Keep the purchase tied to evidence
Record the candidate code, sample lot, sludge condition and measurement method beside each result. An untested condition is a qualification limit, not an assumed pass. Keep unresolved requirements visible before approving repeat supply.
| Requirement | Evidence | Purchasing decision |
|---|---|---|
| Price | Same currency and delivery scope | Commercial comparison is fair |
| Dose | Measured use on defined mass basis | Consumption matches the quotation |
| Value | Qualified production results | Projected savings remain conditional |
Request a defined sample and quotation
Send proposed purchase quantity, destination, packaging and delivery term alongside incumbent and candidate consumption. Identify which operating costs are measured and which remain estimates.
Include quantity, delivery destination and requested documents with the sample brief. The quality and supply record connects the qualified product to shipment. Gongyi Xinqi Polymer Co., Ltd. can review the operating case and commercial request; confirm grade-specific availability and terms before ordering.
Request a product and purchasing review
Send the sludge, equipment and supply requirement for the intended duty.