ISO 7886-4:2018

Overview

ISO 7886-4:2018 - "Sterile hypodermic syringes for single use - Part 4: Syringes with re‑use prevention feature" specifies requirements for sterile, single‑use plastic and rubber hypodermic syringes (with or without needle) designed to be rendered unusable after one use. The standard targets syringes intended for aspiration or immediate injection and focuses on preventing intentional or accidental reuse to reduce transmission of blood‑borne pathogens. It is the second edition (2018) and aligns terminology and testing with other ISO 7886 parts.

Key topics and technical requirements

This part of ISO 7886 covers technical and performance aspects relevant to re‑use prevention and general syringe safety:

• Scope and exclusions: applies to single‑use plastic/rubber syringes; excludes glass syringes, ISO 7886‑3 auto‑disable syringes for fixed‑dose immunization, and pre‑filled syringes. It does not address compatibility with injection fluids or needle‑stick protection per se.
• Types and function: classification of syringes by type of re‑use prevention feature (including automatic or activation‑based mechanisms) and intended clinical applications.
• Materials and cleanliness: requirements on extraneous matter, extractables (metals), and lubricants to ensure sterility and safety.
• Design and dimensions: specifications for graduated scale, barrel and flange dimensions, plunger/stoppers, nozzle and needle interfaces.
• Performance tests: dead space, leakage (air and liquid), resistance to reuse, and post‑shipping performance. Annex B provides a normative test method for the re‑use prevention feature; Annex A covers extract preparation.
• Packaging and labeling: unit and multiple‑unit packaging, user packaging, storage and transport wrapping, and detailed information to be supplied by the manufacturer.
• Normative references: cross‑references to related standards (e.g., ISO 7886‑1, ISO 7864, ISO 8537) and relevant test methods.

Applications and users

ISO 7886‑4 is intended for:

• Medical device manufacturers designing and producing single‑use syringes with built‑in re‑use prevention features.
• Quality assurance and regulatory teams responsible for device conformity, testing and documentation.
• Procurement and healthcare organizations selecting syringes to minimize reuse and infection risk.
• Testing laboratories performing performance and extraction tests according to the Annexes.

Practical benefits include improved infection control, clear conformity criteria for safety‑engineered syringes, and harmonized test methods for product acceptance.

Related standards

• ISO 7886‑1:2017 – Syringes for manual use (general requirements)
• ISO 7886‑3 – Auto‑disable syringes for fixed‑dose immunization
• ISO 7864:2016 – Sterile hypodermic needles for single use
• ISO 8537:2016, ISO 3696, ISO 9626 and relevant ASTM shipping/drop test methods

For implementation or certification, consult the full ISO 7886‑4:2018 text available from ISO or your national standards body.