ISO 80369-20:2015

Overview - ISO 80369-20:2015 (Common test methods for small-bore connectors)

ISO 80369-20:2015 defines the common test methods used to evaluate the performance requirements of small-bore connectors for liquids and gases in healthcare applications. Published 2015-05-15 as part of the ISO 80369 series (developed in collaboration with IEC), this part centralizes functional and environmental test procedures to avoid duplication across application-specific parts of the series.

Key technical topics and requirements

ISO 80369-20 organizes and standardizes the test procedures used across the series. Major technical topics include:

• List of standardized test methods (Table 1 / Annex linkages):
  • Leakage by pressure decay (Annex B)
  • Positive-pressure liquid leakage - falling drop method (Annex C)
  • Subatmospheric-pressure air leakage (Annex D)
  • Stress cracking (Annex E)
  • Resistance to separation by axial load (Annex F)
  • Resistance to separation from unscrewing (Annex G)
  • Resistance to overriding (Annex H)
  • Disconnection by unscrewing (Annex I)
  • Modification of tests for statistical analysis (Annex J)
• Preconditioning and environmental test conditions (e.g., humidity/temperature guidance, with test-range examples taken from ISO 594 series; typical test temperature range cited 15 °C to 25 °C).
• Rationale and guidance (Annex A) explaining intent, historical basis (ISO 594 series), test limitations and recommended usage.
• Normative references essential for application: ISO 80369-1:2010 (general requirements) and ISO 14971:2007 (risk management).

Note: the document provides procedural detail in normative annexes and allows limited, documented modification (Annex J) for statistical data generation.

Practical applications and users

ISO 80369-20 is intended for professionals responsible for connector performance, safety and regulatory compliance:

• Medical device manufacturers designing or validating small-bore connectors (intravascular, enteral, neuraxial, limb cuff, etc.)
• Test laboratories performing type tests, leakage and mechanical separation testing
• Regulatory affairs and quality managers preparing device submissions and conformity evidence
• Standards developers and engineers harmonizing test methods across connector types

Using ISO 80369-20 helps ensure repeatable, comparable test results, supports risk management (ISO 14971), and facilitates consistent implementation across the ISO 80369 series.

Related standards

• ISO 80369-1:2010 - General requirements for small-bore connectors
• ISO 14971:2007 - Application of risk management to medical devices
• Other application parts of ISO 80369 (e.g., Parts 3, 5, 6, 7) reference these test methods for specific connector types

Keywords: ISO 80369-20, small-bore connectors, test methods, leakage test, pressure decay, medical connector testing, healthcare applications, connector performance testing.