Never Use Sampling Devices Past Expiry in GMP Testing

Don’t Use Sampling Devices Beyond Their Expiry Date in GMP Labs

Remember: Never use expired sampling tools — material degradation may compromise sample integrity and invalidate analytical results.

Why This Matters in GMP

Sampling devices — such as scoops, pipettes, syringes, filters, swabs, and sample bags — play a crucial role in maintaining sample sterility, integrity, and representativeness. These tools are often made of plastic, polymers, or treated materials that degrade over time. Using expired devices increases the risk of leachables, contamination, or breakage during use, leading to invalid data, false positives, or sample loss.

Also Read: Do Not Store Broken Tools in Pharmaceutical Maintenance Rooms

For example, an expired sterile swab used during surface sampling may lose microbial retention efficacy or introduce contaminants. A plastic scoop may become brittle and break during sample collection, risking inclusion in the sample or foreign matter detection later. GMP requires full traceability and suitability of materials used in testing, including tools — expired equipment undermines this assurance.

Regulatory and Compliance Implications

21 CFR Part 211.160 mandates scientifically sound and appropriate test equipment, including instruments and sampling tools. EU GMP Chapter 6 emphasizes that laboratory apparatus must be suitable for its intended use and maintained under controlled conditions. WHO GMP reinforces

that sampling must be carried out using suitable, labeled, and unexpired materials.

Also Read: Do Not Allow Flaking Paint in GMP Controlled Manufacturing Environments

Auditors inspect sampling records, tool expiry logs, and quality control practices. Use of expired sampling devices may result in critical observations under equipment control, data reliability, or method validation failures — particularly if associated with batch release decisions or contamination results.

Implementation Best Practices

Implement a barcode or logbook tracking system for all sampling devices, capturing receipt date, lot number, and expiry. Segregate expired tools and dispose of them following GMP waste protocols. Include expiry verification as a checklist step in sampling SOPs and logbook entries.

Train all samplers, QC, and QA staff on identifying expired devices, and enforce periodic inventory reviews. Maintain procurement practices that allow sufficient lead time for replenishment of sampling tools, especially those with short shelf life or special storage conditions.

Also Read: Review Out of Trend (OOT) Results Periodically to Detect Emerging GMP Issues

Regulatory References

– 21 CFR Part 211.160 – Laboratory controls and equipment
– EU GMP Chapter 6 – Laboratory equipment suitability
– WHO TRS 986, Annex 4 – Sampling control in GMP
– ISO 14698-1 – Cleanroom sampling devices