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Last reviewed: September 16, 2026.
IQ, OQ and PQ for a veterinary filling line should form a traceable evidence chain from the approved design to the installed system, challenged operating functions and repeatable site performance. The practical content changes by package: a tube line must prove orientation, dosing and seal control; a veterinary syringe line must prove barrel handling, dosing and closure placement; a bottle line must prove filling, capping, inspection and reject logic. The owner must approve the intended use, risks and acceptance criteria before execution.
This page covers non-sterile veterinary tube, oral-paste syringe and bottle filling equipment. It does not replace product validation, cleaning validation, container-closure studies or sterile-process qualification. It is also different from a supplier FAT: the KING PACK filling-line FAT protocol guide explains pre-shipment acceptance, while this article owns the site IQ/OQ/PQ evidence matrix.
Quick answer: Prepare IQ evidence that the installed machine, utilities, components, documents, software versions and instruments match the approved design. Prepare OQ evidence that operating ranges, recipes, alarms, interlocks, sensors, line states and challenge conditions work as intended. Prepare PQ evidence that the integrated process repeatedly produces acceptable units with representative product, packaging components, trained operators and approved procedures at the site. Acceptance limits, sample plans and required repetitions must come from the approved validation plan and risk assessment; there is no universal run count or machine setting.
1 Separate FAT, IQ, OQ and PQ Responsibilities
Direct answer: Use FAT to reduce delivery risk and IQ/OQ/PQ to establish controlled use at the manufacturing site.
FAT normally confirms agreed machine construction and functions before shipment using a signed protocol. It may include component trials, recipes, alarms and documentation, but it does not verify the final installation, site utilities or the approved production process. Open FAT actions should be transferred to a controlled punch list with owners and due dates.
IQ begins after installation and verifies the delivered system against approved drawings, specifications and change records. OQ challenges functions across justified operating ranges and abnormal states. PQ uses the installed equipment with representative materials, procedures and operators to demonstrate the process result defined by the manufacturer. The organization should define where process performance qualification and continued verification sit in its validation lifecycle.
Create one requirements-traceability matrix linking each URS requirement and risk control to design evidence, test step, acceptance criterion, result, deviation and approval. This prevents the same test being repeated without purpose and shows when FAT evidence can be referenced rather than copied into a site protocol.
| Stage | Primary question | Typical evidence |
|---|---|---|
| FAT | Did the supplier build and functionally test the agreed machine? | Drawings, component trials, alarms, actions |
| IQ | Is the approved system correctly installed and documented? | Equipment, utilities, versions, calibration, manuals |
| OQ | Do functions and controls work across approved challenges? | Ranges, recipes, sensors, alarms, line states |
| PQ | Does the integrated site process repeatedly meet approved criteria? | Representative product, components, operators and records |
2 Build the Qualification Basis from the URS and Risk Assessment
Direct answer: Qualification is defensible only when every test traces to intended use, a requirement or a controlled risk.
Freeze the approved URS revision, process description, packaging drawings, product properties, capacity basis, cleaning boundary, data needs, environmental conditions and facility interfaces before protocol approval. Record unresolved assumptions separately. A generic protocol cannot decide whether a feature is critical for a particular veterinary paste, oral liquid or topical product.
Use a cross-functional risk review to identify failure modes affecting dose, package integrity, mix-up prevention, cleaning, operator safety, data and recovery after interruption. Assign each control to design, procedure, training, calibration, maintenance or qualification. Not every low-risk feature needs an elaborate challenge, but every critical claim needs objective evidence.
The qualification plan should define protocol authorship, execution roles, prerequisites, sampling rationale, deviation handling, approval gates and the relationship to process and cleaning validation. FDA lifecycle process-validation guidance covers veterinary drugs and supports this staged evidence approach; the site quality system determines its exact application.
3 IQ Matrix: Installed Equipment, Utilities and Documents
Direct answer: IQ should prove identity, installation and document control rather than repeat operational performance tests.
Verify the machine name, asset number, model, serial numbers and tagged major assemblies against approved purchase and design records. Check product-contact parts, finishes and certificates only to the extent specified by the project. Record installed guards, safety devices, access panels, piping, valves, hoses, electrical cabinets and change parts with drawing or bill-of-material references.
Confirm utilities at the connection points: electrical supply, compressed air, vacuum, water, extraction, network and any product-specific service. Record quality, range and capacity requirements from approved supplier data and site specifications rather than inventing universal values. Installation checks should include leveling, anchoring, flow direction, drainage and maintenance access where relevant.
Verify manuals, drawings, parts lists, software and firmware versions, backup files, licenses, user accounts, alarm list, calibration certificates and recommended maintenance information. Record instrument tag, range, resolution, calibration status and due date. Missing documents are deviations or controlled actions, not reasons to mark a checklist complete.
| IQ area | Evidence | Release question |
|---|---|---|
| Identity and construction | Tags, drawings, BOM and visual record | Does installed scope match approval? |
| Utilities | Connection and service verification | Are specified services available? |
| Instruments | Tags, ranges and calibration status | Are measurements traceable? |
| Software and documents | Versions, backups, manuals and lists | Can the system be controlled and maintained? |
4 OQ Matrix: Recipes, Sensors, Alarms and Line States
Direct answer: OQ should challenge normal functions, justified limits and failure responses before routine production use.
Define approved test ranges for speed, timing, dose settings, temperature where applicable and other adjustable parameters. Demonstrate recipe creation, selection, version control, access levels and protected critical settings. Test power-up, startup, normal run, planned stop, restart, batch end and controlled recovery after a fault.
Challenge no-container-no-fill, low product level, missing closure, misfeed, jam, guard opening, reject confirmation, full reject bin and downstream stop as applicable. Use traceable fault samples or simulated signals and record both the detection and safe machine response. Do not claim complete defect detection until the method has been tested with representative acceptable and defective components.
Verify alarms are understandable, prioritized as defined, time stamped and linked to a recovery instruction. Test user access, audit trail or electronic record functions only against the approved data specification. Where the machine does not own a regulated record, state the interface and responsible system instead of expanding the claim.
5 Tube Filling and Sealing Qualification Matrix
Direct answer: A tube-line matrix should connect tube presentation, dose delivery, seal formation, coding and rejection to approved package tests.
For IQ, verify magazine or feed configuration, tube holders, orientation sensor, dosing parts, heated or folding seal station, cooling where supplied, coding tools, trimming system and format parts. Link contact materials and cleaning access to the approved product path. Confirm utilities and exhaust required by the selected sealing method.
For OQ, challenge missing and misoriented tubes, dose settings, nozzle cutoff, planned stops, restart, low feed, seal temperature or timing range where applicable, code presence, trim and reject logic. Use the actual tube materials and dimension ranges. The KING PACK tube filling machine range provides platform context, but the protocol must use project-specific tube and seal evidence.
For PQ, run representative product and tube lots with trained operators and approved procedures. Evaluate dose, air pockets or stringing, clean seal area, seal appearance and strength or leak evidence using approved methods. Include startup, routine operation, interventions and batch end in the sampling map; steady-state samples alone can hide important failure modes.
6 Veterinary Syringe Filling Qualification Matrix
Direct answer: Syringe qualification should prove barrel positioning, dose delivery, air and cutoff control, and closure placement for the intended oral or topical applicator.
IQ should identify barrel holders, filling nozzles, pumps, hoppers, cap or plunger tooling, sensors, product-contact parts and change parts. Confirm the installed recipe and motion-control versions and the interface with upstream product transfer. Verify that parts can be removed, identified and reassembled as described in approved procedures.
OQ should test no-syringe-no-fill, barrel misload, dose range, hopper level states, nozzle motion, drip or string control, missing or reversed cap, closure placement, reject logic and recovery after stoppage. Use the intended barrel and closure tolerances. The KING PACK syringe filling machine range helps frame equipment options without replacing sample trials.
PQ should use representative product behavior, especially viscosity and air sensitivity, and the approved method for filled or expelled dose. Evaluate product on the tip, visible bubbles where meaningful, closure position and unit function. Record temperature, bulk condition, package lot, settings and interventions so an unexpected result can be investigated rather than averaged away.
7 Bottle Filling and Capping Qualification Matrix
Direct answer: Bottle-line qualification should follow the complete path from infeed and dosing through closure, inspection, rejection and reconciliation.
For IQ, verify guides, feed screws, starwheels or pucks, pumps and nozzles, hopper or supply interfaces, plug or cap feeders, closing heads, torque or force instruments, sensors, inspection systems and reject devices. Check the installed line layout and interfaces against approved drawings and the KING PACK filling and capping line platform.
For OQ, challenge container absence, skewed placement, fill range, nozzle centering, low feed, cap absence or misorientation, cross-thread or seating faults where applicable, capper range, reject confirmation and line accumulation. Test startup, planned stop, downstream blockage and restart. Acceptance criteria must refer to the actual bottle and closure system.
For PQ, use representative product and component lots under routine staffing and approved procedures. Sample dose and closure results across time, heads, lanes, operating states and batch phases. Add approved torque, removal, leak or functional tests as the package requires, and reconcile good units, samples and rejects.
| Format | OQ focus | PQ evidence |
|---|---|---|
| Tube | Orientation, dose, seal settings, code and reject | Dose, clean seal zone and approved seal test |
| Syringe | Holder, dose, cutoff, air control and closure | Delivered result, cleanliness and closure function |
| Bottle | Transport, fill, plug/cap, inspection and reject | Dose, closure, leak/function and reconciliation |
8 Calibration, Measurement and Data Traceability
Direct answer: Every reported result should be linked to a suitable, in-calibration instrument and an identifiable test record.
Create a critical-instrument list covering scales, pressure and temperature devices, torque or force tools, timers, reference standards and machine sensors used as acceptance evidence. Record identification, range, accuracy or uncertainty as required by the site, calibration status and traceability. The approved test method determines suitability; a current sticker alone does not prove the instrument fits the measurement.
Preserve raw data, calculations, sample identity, operator, date, equipment state, recipe and instrument number. Where results are transcribed, require an independent check according to procedure. For electronic results, define source records, backup and access. Avoid screenshots without context or unexplained spreadsheets detached from the protocol.
Review out-of-tolerance calibration results for impact on previously accepted qualification data. If a critical instrument is changed, repaired or recalibrated after failure, use risk assessment to determine which tests require repetition. Keep the decision and technical rationale in the qualification file.
9 PQ Sampling, Worst Cases and Acceptance Rules
Direct answer: PQ should cover justified worst cases and real operating states, not rely on an arbitrary universal number of runs.
Define representative and worst-case combinations from product viscosity or foaming, fill range, package size and tolerance, closure, speed, hold time, changeover and campaign plan. A high and low setting may be insufficient if the true risk occurs during startup, refill, long stop or batch end. The validation plan should explain why selected conditions cover routine use.
Map samples by time, dosing head or lane, component lot and machine state. Predefine statistical or attribute methods, handling of invalid tests and rules for investigation. Do not select sample size only after observing results. Record units rejected automatically and units removed for testing so reconciliation remains clear.
PQ is site and process evidence. Supplier support may include protocol templates, machine data and troubleshooting, but the manufacturer approves product criteria, operators, procedures, sampling and disposition. Changes between FAT material and commercial product should be explicitly assessed.
10 Deviations, Change Control and Requalification
Direct answer: A qualification package is credible when unexpected results are investigated and changes are evaluated instead of being hidden by protocol closure.
Classify deviations according to the site procedure, document immediate containment and preserve affected evidence. Determine root cause to the level justified by risk, then define correction, corrective action and required retest. A passing repeat does not by itself invalidate the original failure or explain why it occurred.
Maintain a change log from design through qualification. Review changes to software, dosing parts, product-contact materials, closures, format parts, sensors, recipes, utilities and cleaning procedures for impact on approved requirements. The assessment should state whether document update, targeted testing, partial requalification or full requalification is needed.
Define periodic review and event-driven requalification triggers before routine operation. Maintenance that restores an approved condition may require verification; a change that alters the condition needs formal assessment. Continued process data can support decisions but should not be used to bypass an approved requalification requirement.
11 Supplier Handover Checklist and KING PACK Support
Direct answer: Close qualification with a controlled technical file, trained users and a clear division of supplier and manufacturer responsibilities.
Request approved drawings, manuals, product-contact and change-part lists, software backups, alarm and I/O lists, calibration records, certificates in scope, spare-parts recommendations, maintenance schedule, training evidence, FAT record and open-action closure. Confirm the final installed revision rather than accepting an earlier design package.
KING PACK Machinery supplies filling and packaging equipment for pharmaceutical, veterinary, cosmetic and liquid applications, including tube filling and sealing, veterinary syringe filling, bottle filling and capping, vial systems and vacuum emulsifying equipment. Qualification support can include project-specific document lists, traceability input, test protocols and agreed sample trials; the manufacturer remains responsible for validation strategy and release decisions.
Send the approved URS, process ranges, tube/syringe/bottle drawings, representative samples, line layout, quality-system expectations and acceptance methods through the KING PACK contact page. The KING PACK pharmaceutical and veterinary solutions page provides wider application context. KING PACK can then propose a machine-specific evidence matrix rather than a generic checklist.
Frequently Asked Questions
Is FAT the same as OQ?
No. FAT is normally supplier-site acceptance before shipment. OQ challenges the installed system's functions and approved operating ranges under the site qualification plan.
Can FAT results be referenced in IQ or OQ?
They may be referenced when the validation plan permits it, the evidence remains applicable and shipment or installation has not changed the tested condition. The rationale should be documented.
How many PQ runs are required?
There is no universal run count for every veterinary filling line. The owner should justify the number, duration, conditions and samples from process knowledge, risk and applicable requirements.
What belongs in tube-filler OQ?
Typical challenges include orientation, dosing, no-tube-no-fill, nozzle cutoff, seal controls, code, trim, reject logic, stops and restart, using the actual tube system.
What is different for syringe-filler qualification?
Barrel support, delivered dose, air and string control, tip cleanliness, cap or plunger placement and package function require applicator-specific evidence.
Should every sensor be calibrated?
Not automatically. Identify whether a sensor provides a critical measurement, control or indication, then define calibration, verification or functional challenge according to risk and site procedure.
When is requalification needed?
Assess changes, repairs, repeated failures, long shutdowns and adverse trends. The approved change-control and periodic-review procedures should determine the extent of requalification.
What should be sent to KING PACK?
Send the URS, process and package data, representative samples, layout, acceptance criteria, documentation expectations and qualification responsibilities.
