Packaging Line Acceptance Testing: A Practical FAT and SAT Checklist

Agree the test scope before the trial

Identify the product, containers, closures, labels, coding information and formats included. Define accepted output, filling measurement method and package-quality criteria in writing. State who supplies materials, how much is available and what happens if only substitutes can be tested.

Choose trial duration and sampling for the project rather than using a universal number. Include startup, steady running, replenishment and planned stops where relevant. A short video of ideal operation cannot establish sustained output, cleaning performance or compatibility across every SKU.

Create a measurable acceptance matrix

Equipment examples: liquid bottles and powder vials

The test matrix should follow the actual dosing and closure process. These two systems illustrate different acceptance scopes; they are not interchangeable configurations, and neither example establishes a universal performance limit.

Turn the equipment scope into test questions

• Liquid dosing: which liquid, fill target, temperature and measurement method are agreed? Record individual fill results and check for leakage or contamination of the closure area.
• Powder dosing: which powder, target mass and auger configuration are included? Agree the weighing method and sampling, and record dose variation, material buildup and interruptions.
• Closure handling: do the actual stoppers and caps feed consistently and seat correctly? Distinguish screw-cap checks from crimp-closure checks; use criteria specific to the package.
• Transfer and output: do containers move reliably through the included stations, and what accepted finished output is achieved over the agreed elapsed test time?
• Additional stations: if labeling, coding or other equipment is included in the project, add its own quality and interface checks rather than assuming it is part of either machine.

These are checklist application examples, not reports of completed customer FAT or SAT. Trial conditions, numeric limits, included functions and acceptance responsibilities must be agreed for the actual project.

Distinguish cycle rate from accepted output

State whether a quoted rate means a station's cycle speed or accepted finished packages over the test. A machine may reach nominal speed while jams and inspection failures reduce finished output. Record stop reasons and duration instead of silently excluding them.

Confirm whether operator loading, manual cap placement, replenishment and discharge handling are included. Use the packaging line speed guide to establish a consistent basis. Agree any excluded stops before testing.

Test interfaces and installed conditions

Observe transfers between feeding, filling, capping, labeling and discharge. Check accumulation, bottle stability and agreed interlocks. Include permitted responses to downstream blockage and upstream starvation. Qualified personnel should verify safety functions under approved procedures; do not improvise bypasses or unsafe fault conditions.

At the site, verify power, air supply, layout, access and surroundings against project requirements. Shipping, reassembly and utility differences can affect performance. Use the installation checklist before SAT.

Close the test with evidence

• Retain test conditions, settings, results and identified samples or photographs.
• Separate passed, deviating and untested items.
• Assign open items an owner, corrective action and retest requirement.
• Confirm training, manuals, electrical information and spare-parts identification.
• Record whether production materials were used and which formats remain unverified.

Select inspection systems and line components around the defined checks. An inspection station must be specified and tested for its task; its presence alone does not establish detection of every defect.

Use a sign-off record with traceable evidence

For each requirement, record: test ID → agreed limit → method and instrument → product/package lot → result → evidence reference → status → owner and due date. Use statuses such as pass, deviation or not tested. Identify the approved correction and retest evidence before closing a deviation.

Keep photographs or video references with the measured results; they provide context but do not replace the acceptance record. For station scope and transfer planning, see the filling, capping and labeling configuration example.

Frequently asked questions

Does FAT replace SAT? They address different conditions. The project agreement should identify what is demonstrated before shipment and after installation.

Can water replace the production liquid? It may demonstrate basic motion, but viscosity, foam, dosing behavior and compatibility can differ. State exactly what a substitute test verifies and what it leaves untested.

What record is most useful? A matrix connecting each requirement to its method, conditions, result and open items is more informative than a general statement that the line runs well. Numeric limits should come from the agreed package and process requirements, not an unrelated demonstration.