Name the exact wastewater duty
State whether the product will support clarification, DAF, tertiary solids capture, sludge thickening or mechanical dewatering. Include the stream source and treatment stage.
A broad request for wastewater PAM cannot distinguish product family or evaluation method.
Describe the operating window
Provide flow, pH, conductivity, temperature, TSS, feed solids and relevant indicators such as oil, color or volatile solids. Include normal and difficult ranges.
Mark sample date and any upstream batch or cleaning event.
List upstream and downstream chemistry
Include acid, alkali, coagulants, oxidants and other polymers with their sequence and current dose. Note biological or membrane units that receive treated water or recycle.
This prevents a proposed grade from being evaluated outside the real treatment train.
Describe equipment and hydraulics
Name the clarifier, DAF, belt press, centrifuge, screw press or other separator. Include injection points, mixing, transfer pumps and relevant loading.
Equipment details guide both the screen and the scale-up method.
Report active-basis evidence
Identify tested sample codes, active content, solution concentration, aging, active dose, treated-water quality, capture, cake solids and throughput.
Use repeated data rather than only photographs of floc.
Request product identity and documents
Ask for proposed product code, ionic family, active content or applicable assay, current COA, SDS and preparation instructions. Confirm any site-specific approval requirements.
Do not add fabricated certification expectations to the RFQ.
Define technical acceptance
State the minimum treated-water, solids-capture, cake, throughput or float-handling result and the wastewater window in which it must be achieved. Include the active-dose range and preparation conditions.
Acceptance should require repeatable performance, not one favorable photograph or isolated laboratory result.
Define sample and production traceability
Require a link between the approved sample, quotation and production supply. State how substitutions or specification changes will be communicated.
Plan a receiving check and revalidation trigger before the first full shipment.
Set change-control expectations
Ask the supplier to identify material changes that could affect preparation or performance and to preserve the agreed product code in commercial documents.
Define whether a new lot, specification movement or manufacturing change requires a bench reference or plant confirmation.
Specify packaging and destination
Provide trial quantity, monthly demand, bag or pallet preference, storage limitations, destination port or address and Incoterm request.
Include document format, marking and timing needs that affect quotation.
Define communication during the trial
Name the plant contact, operator or laboratory owner of the test and agree how results, sample codes and changes will be recorded. Provide a practical schedule for bench and plant evaluation.
A clear communication path prevents purchasing, laboratory and operations teams from comparing different samples or dose bases.
Compare total treatment value
Normalize prices to active polymer and include preparation, consumption, sludge volume, recycle quality and throughput consequences.
Award against the approved operating window and supply record, not the lowest delivered kilogram alone. State the evaluation period, accepted variability and receiving checks in the purchase record so commercial comparison remains tied to plant evidence.