--- title: "Stability Testing, Definition | MedTech Terms" description: "Studies that establish how device performance and packaging hold up over time. 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[Home](/) 2. / 3. [Terms](/terms) 4. / 5. [Manufacturing](/terms?cat=Manufacturing) 6. / 7. Stability Testing [All terms](/terms) Manufacturing [Manufacturing & Supply](/ecosystems/manufacturing-supply) # Stability Testing Studies that establish how device performance and packaging hold up over time. Reviewed by [Christian Espinosa, Founder, Blue Goat Cyber](/authors/christian-espinosa) Last reviewed May 5, 2026 ## Definition Stability testing - including accelerated aging (often per ASTM F1980) and real-time aging - generates data to support shelf-life claims, packaging integrity, and continued sterility for terminally sterilized devices. What the regulation says The FDA, under 21 CFR Part 820, [Quality System Regulation](/terms/qsr), requires manufacturers to establish and maintain procedures to control product design, including stability to ensure the medical device conforms to its specified requirements throughout its [shelf life](/terms/shelf-life). Similarly, the EU [MDR](/terms/mdr-reporting), in Annex I, [General Safety and Performance Requirements](/terms/gspr), mandates that devices be designed and manufactured in such a way that they will not compromise the clinical condition or the safety of patients, or the safety and health of users or, where applicable, other persons, when implanted, used or maintained according to their intended purpose and that the device will perform as intended during its expected lifetime. [ISO 13485](/terms/iso-13485):2016, clause 7.3.7, design validation, also emphasizes that design validation shall be performed in accordance with planned arrangements to ensure that the resulting product is capable of meeting the requirements for the specified application or [intended use](/terms/intended-use), implicitly covering stability. ISO 11607-1 further details requirements for packaging for terminally sterilized medical devices, including aspects related to shelf life. ## What this means in practice Real-time data must eventually replace accelerated estimates. Stability data supports [labeling](/terms/labeling) claims and is reviewed during 510(k)/ [PMA](/terms/pma) submissions and [Notified Body](/terms/notified-body) audits. ## Examples - A manufacturer conducts accelerated aging testing on a new sterile catheter to establish a preliminary 3-year shelf life, submitting this data for a 510(k) premarket submission. - A company performs real-time aging studies on a prosthetic implant, storing samples for 10 years to confirm its structural integrity and material biocompatibility over its intended useful life. - After a change in the sterilization method for a surgical instrument, the manufacturer initiates new stability testing to ensure the validated shelf life remains unaffected and the sterility barrier maintains its integrity. Common pitfalls - • Failing to establish a documented stability testing plan before device launch can lead to regulatory non-compliance. - • Extrapolating accelerated aging data too far beyond validated real-time data without sufficient justification is a common pitfall. - • Not considering the impact of multiple sterilization cycles or reprocessing on device stability for reusable devices can lead to safety issues. - • Inadequate sample sizes for stability studies may result in statistically unreliable data. - • Changes in materials or manufacturing processes without re-evaluating stability can invalidate existing shelf-life claims. ## Frequently asked questions What is the primary purpose of stability testing for MedTech devices? The primary purpose is to generate evidence proving that a medical device will maintain its safety, quality, and performance characteristics over its stated [shelf life](/terms/shelf-life), under specified storage conditions. How do accelerated aging and real-time aging differ? When is stability testing typically performed? ## Related terms Grouped by theme ### Editor's picks · Hand-selected related concepts [ Quality & Risk Shelf Life Period during which a device remains suitable for its intended use under specified conditions. ](/terms/shelf-life)[ Manufacturing Sterilization Validated process used to render a device free from viable microorganisms. ](/terms/sterilization) ### Manufacturing & Supply Chain · From this learning path [ Manufacturing Supplier Controls Procedures to ensure purchased products and services conform to requirements. Adjacent lesson ](/terms/supplier-controls?from=manufacturing-and-supply-chain)[ Manufacturing Cleanroom Classes (ISO 14644) ISO 14644 classification of cleanrooms by airborne particulate cleanliness (ISO 1 through ISO 9). ](/terms/cleanroom-iso-14644?from=manufacturing-and-supply-chain)[ Manufacturing Design Transfer Translating design into production specifications. ](/terms/design-transfer?from=manufacturing-and-supply-chain)[ Manufacturing Lot Traceability Ability to trace materials, processes, and devices forward and backward through the supply chain by lot number. ](/terms/lot-traceability?from=manufacturing-and-supply-chain) ### More in Manufacturing · Same category [ Manufacturing Process Validation Establishing documented evidence that a process consistently produces conforming output. ](/terms/process-validation)[ Manufacturing Bill of Materials(BOM) Structured list of every component, sub-assembly, and quantity needed to manufacture a device. ](/terms/bom) Cited by Where this term appears across MedTech Terms. Learning paths (1) - [Manufacturing & Supply Chain](/paths/manufacturing-and-supply-chain)Lesson 9 of 14 Ecosystems (1) - [Manufacturing & Supply](/ecosystems/manufacturing-supply) ## Mentioned in recent activity 2 entries Recalls (2) [Heraeus, PALAMIX uno. Material Number: 66057893. ](https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfRES/res.cfm?id=Z-1997-2026) Class III · 2026-03-25 [Heraeus, PALAMIX duo. Material Number: 66057897. ](https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfRES/res.cfm?id=Z-1998-2026) Class III · 2026-03-25 ## Latest in MedTech [View all](/latest?term=stability-testing) Recent regulatory actions, publications, and trials matched to this term. Updated daily. - Recall 2026-03-25 [Heraeus, PALAMIX uno. Material Number: 66057893. ](https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfRES/res.cfm?id=Z-1997-2026) Class III · Heraeus Medical GmbH (Dental Division) - Recall 2026-03-25 [Heraeus, PALAMIX duo. Material Number: 66057897. ](https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfRES/res.cfm?id=Z-1998-2026) Class III · Heraeus Medical GmbH (Dental Division) ## Primary references 3 sources Link health: 3 verified · last checked 2026-06-20 ASTM· 1 ISO· 1 IMDRF/GHTF· 1 1. [1 ASTM F1980 Verified ASTM · astm.org ](https://www.astm.org/f1980-21.html) 2. [2 ISO 13485 Standard Page Verified ISO · iso.org ](https://www.iso.org/iso-13485-medical-devices.html) 3. [3 GHTF/IMDRF Process Validation Guidance Verified IMDRF/GHTF · imdrf.org ](https://www.imdrf.org/sites/default/files/docs/ghtf/final/sg3/technical-docs/ghtf-sg3-n99-10-2004-qms-process-guidance-04010.pdf) Inline markers like \[1\] jump to the matching reference above. Sponsor note ### Production controls for connected devices? We help device manufacturers operationalize cybersecurity in design transfer, production, and supplier controls. [Book a 30-minute discovery session](https://go.bluegoatcyber.com/meetings/blue-goat-cyber/discovery-session) - No obligation - Expert-led from minute one - NDA available on request MedTech Terms is a community resource sponsored by [Blue Goat Cyber](https://bluegoatcyber.com). Definitions are independent of any vendor. On this term Category Manufacturing Sources 3 Updated 5/5/2026 [Compare with another term](/compare?a=stability-testing) Learn in 60 seconds Card Lesson Quiz Studies that establish how device performance and packaging hold up over time. - · Real-time data must eventually replace accelerated estimates. - · Stability data supports labeling claims and is reviewed during 510(k)/PMA submissions and Notified Body audits. Remember this Watch out: Failing to establish a documented stability testing plan before device launch can lead to regulatory non-compliance. Related terms - [Shelf Life ](/terms/shelf-life) - [Sterilization ](/terms/sterilization) You may also need Auto-suggested from Manufacturing and shared keywords. - [Container Closure Integrity(CCI) ](/terms/container-closure) - [Feasibility Study ](/terms/feasibility-study) - [AI Act Post-Market Monitoring ](/terms/ai-act-post-market-monitoring) - [Bayesian Trial Design ](/terms/bayesian-trial) - [Clinical Performance (IVDR) ](/terms/ivdr-clinical-performance) - [First-in-Human Study(FIH) ](/terms/fih) [All Manufacturing terms](/terms?cat=Manufacturing) MedTech Terms An authoritative, plain-language reference for the regulatory, quality, cybersecurity, and software terms that shape modern medical devices. 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