Prepare a purchase description that identifies the product
Include manufacturer, complete reference, variant, quantity and approved data-sheet revision. Add membrane area per module, connections and the agreed accessories. For replacement work, link the order to the approved adaptation drawing. A description such as eight-inch PVDF UF membrane leaves important details unresolved and makes them harder to address once the shipment is already at the plant.
Specify the documents required before dispatch: current data sheet, drawing, installation and operating manual, storage instructions and packing list. Request the inspection reports or certificates included in the agreed scope, with the issuer and covered product identified. A generic request for a quality certificate is less useful than naming the actual document and the criterion that the receiving team will check.
Connect serial numbers, packages and installed locations
Prepare a register for purchase order, delivery note, package, model and available serial or batch number. Add the delivery date, condition and installed position as the work progresses. This connects transport incidents, testing and operating trends to the correct unit. At multi-train plants, use a consistent location code that also appears on drawings and operational records rather than creating a separate purchasing-only label.
Connect each unit's identification with inspection results and operating data to support follow-up and incident resolution. Keep the documentation accessible to maintenance and purchasing alongside the order conditions. An invoice held only by administration rarely provides the technical history needed to investigate a deviation quickly or specify a repeat order accurately when the next membrane purchase is due.
| Stage | Minimum record | Later purpose |
|---|---|---|
| Order | Approved reference and revision | Verify the purchased product |
| Delivery | Package, serial or batch, date and photos | Locate damage or discrepancies |
| Installation | Position and fitted accessories | Maintain traceability |
| Start-up | Test, conditions and result | Establish an operating baseline |
Arrange unloading and storage before arrival
Confirm package dimensions and weight, unloading equipment, the route to storage and permitted support points. Request the actual packing drawing or list, including the number of units per package. A multi-module pallet needs different handling from a single unit, and the receiving area may need preparation. Coordinate arrival with the person responsible for checking and releasing the material.
Allocate a protected area meeting the purchased product's storage conditions. Keep labels and protective components accessible, and plan how a preservative leak would be managed. Make handling instructions and the relevant safety data sheet available. Opening every package to photograph fibres, or draining preservative without an approved procedure, can compromise material that is not yet due for installation.
Follow a structured delivery inspection
Compare the delivery note with the order before distributing components. Count modules and accessories, then check labels, impact damage, unusual wetness, caps and protective covers as applicable to the packaging. Take photographs that identify both the package and the detail. Complete the delivery record with date, inspector and findings, following the handling instructions for the actual product delivered.
Where a discrepancy appears, identify the affected unit and keep it separate from released stock until the issue is resolved. Notify the supplier using the agreed procedure and timing, retaining packaging and records as required. Distinguish confirmed damage from missing components and documentation questions. That distinction supports a proportionate response without unnecessarily holding an entire shipment for an issue affecting one accessory or record.
Separate delivery acceptance from service testing
Delivery acceptance confirms identity, quantity, condition and documentation. Subsequent testing checks installation and operation against the agreed scope. Record these as separate decisions and assign the person responsible for each. This allows a physically complete delivery to be received while keeping outstanding integrity or production testing visible until the installed system is ready to perform those checks.
During installation, record locations, accessories and any authorised substitutions. Retain start-up conditions and results, including test water, temperature, flows, pressures and applicable checks. Link the report to the installed units. This dossier supports maintenance, repeat purchases and deviation analysis, while avoiding the common mistake of assigning data from a different train or configuration to the membrane being investigated.
Common questions
What if the label does not match the order?
Record the delivered reference and resolve it before installation. An agreed substitution should document its differences and approval.
Should every module be opened on delivery?
Follow the agreed inspection protocol while maintaining the product's protection and preservation conditions.
Does signing the delivery note replace start-up testing?
They are separate milestones: delivery inspection checks the supply, while start-up testing checks installation and service under defined conditions.