A wildfire runoff PAM sample pack is useful only when its contents can be compared and traced to a later purchase. Several unlabelled powders or a single product described as best for ash provide little defensible evidence. Define the screening question before asking suppliers to dispatch material.
Tell the supplier what the sample represents
Describe runoff origin, sampling conditions, expected separation stage and known contaminants or upstream additives. Include measured water properties where available without presenting a late-storm grab as the full operating range. State whether the immediate decision is laboratory screening or an authorised contained pilot, since these require different quantities and support.
Request labelled candidates from Xinqi Polymer with a reason for each inclusion. A comparison may begin with anionic PAM products, but the supplier should explain the proposed range rather than send many near-identical grades without a test rationale.
Specify the pack contents
Ask for grade and batch identity, usable sample quantity, technical and safety information, and preparation instructions. Clarify whether the sample matches current commercial supply. Request a contact for questions about dissolution or the test sequence. Do not treat a missing label as a minor administrative issue; it prevents reliable qualification and reordering.
Agree how candidates will be coded in the laboratory. Keep the supplier identity and original code in a controlled record even if evaluation uses blind labels. Use separate containers and preparation tools as appropriate to avoid confusing products during a busy screening session.
Keep the comparison fair
Use an untreated control and comparable feed with documented mixing, observation time and dose units. Evaluate clarified water, settled material and repeatability across relevant conditions. Include failed doses and preparation problems in the report instead of reporting only the clearest sample.
Define the next order rather than assuming it
The sample purchase should state whether freight, interpretation and a follow-up quantity are included. Laboratory success supports a further controlled evaluation; it does not authorise stream dosing or routine discharge. Before bulk release, connect the accepted grade to environmental review, equipment capability and a practical solids-management route. A useful sample pack narrows uncertainty while keeping those remaining decisions visible.
Connect the offer to the operating evidence
Review Burn Scar Sediment Sampling Plan Before Flocculant Selection for the related field or process question. Include those conditions when requesting product information or a quotation, and agree the evidence required before releasing a routine order.