Define the purchase duty
An emulsion tender should identify a common separation duty and how acceptance will be measured. A high molecular-weight label, one settling result or a low drum price cannot replace a process specification that includes the water and solids the plant must handle.
Identify the sample, actual feed and required water-and-solids result before asking for a recurring supply commitment.
Define the common comparison
Describe normal and difficult feed, separator, activation constraints and output measurements. Separate mandatory receiving or equipment requirements from candidate-dependent charge properties. The charge screen helps identify which variables should remain open to testing.
Specify methods and timing for clarity, underflow or filtration results. Bidders cannot provide comparable evidence if one is judged on rate and another on a different final bed condition.
Make the commercial basis explicit
Request coded grade, declared active basis, net mass, package, destination, delivery term and quotation validity. Separate samples and commissioning support from recurring supply. The system-level comparison keeps equipment assumptions visible where forms or installations differ.
List missing fields rather than quietly assuming favorable density, freight or concentration. Keep forecast quantities distinct from a technically approved first order.
Set stages and decision owners
Define bench screen, pilot or plant confirmation, first-delivery review and routine release. Assign feed sampling, measurement and operating responsibilities. State what happens when the test feed lies outside the declared range or a mandatory output is not met.
Commercial and legal terms require appropriate review. The technical schedule should supply clear evidence and limits, not an unsupported promise of capacity under every future ore condition.
Test the limiting condition
An award rule based on the fastest interface can favor a grade that leaves dirty overflow or unacceptable underflow. Retain all mandatory outputs before scoring cost, and do not convert an unmeasured downstream benefit into an automatic price credit.
Preserve any untested condition in the acceptance record. A promising sample response is not an unrestricted capacity or treatment guarantee.
Keep a traceable comparison
| Purchase check | Evidence | Decision boundary |
|---|---|---|
| Duty | Feed range and output methods | Bidders face the same task |
| Offer | Grade, basis and delivery scope | Costs are interpretable |
| Release | Stages and named owners | Approval follows evidence |
Retain the commercial code, sample reference, preparation method and measurement timing. Record rejected conditions as well as the preferred point so later shipments can be assessed against the actual evidence.
Request a scoped recommendation
Send tender duty, acceptance methods, available trial window, anticipated volume and delivery constraints. Mark provisional inputs clearly and ask suppliers to state the boundary of their proposed sample and commercial offer.
Use the anionic emulsion sample and quotation form and review supply and packaging controls with Gongyi Xinqi Polymer Co., Ltd.. Confirm offered grade, availability and commercial terms before ordering.