Confirm eligibility before performance testing
A polyacrylamide family name does not establish suitability for potable-water use. Verify the exact trade product, production location, applicable third-party certification, certified function, maximum use level and current jurisdictional requirements.
Keep the evidence with the product code and lot-control process.
Test within the documented use condition
Use representative source water and the real coagulant sequence. Compare the minimum effective active dose against settled-water turbidity, particle removal, filter response and operational stability.
Do not exceed a certified maximum use level or substitute an unlisted formulation because a related grade performed well.
Maintain receiving and change control
Check delivered identity, package seals, lot, COA, SDS and certification status before release to the dosing system. Define notification requirements for formulation, manufacturing location or product-code changes.
Re-approve significant changes through documentation review and representative treatment testing.