EN ISO 7886 Disposable Sterile Hypodermic Syringes

The “EN ISO 7886 Disposable sterile hypodermic syringes” standard, developed by the International Organization for Standardization (ISO) and later published as a European standard within the scope of harmonization efforts, consists of the following sub-sections published under the same title:

• The standard “EN ISO 7886-1 Part 1: Syringes for manual use” describes the requirements and test methods for verifying the design of empty sterile disposable hypodermic syringes, made of plastic or other materials, with or without needles, used by end users for aspirating and injecting liquids after filling.

This standard does not include requirements for batch approval. Syringes are primarily for human use. The sterile syringes specified in this standard are designed for immediate use after filling and are not intended for long-term storage of medication.

Syringes for use with insulin (ISO 8537 standard), disposable glass syringes, syringes for use with electric syringe pumps, pre-filled syringes by the manufacturer, and syringes intended for storage after filling (e.g., in a kit for filling by a pharmacist) are outside the scope of this standard.

The needleless hypodermic syringes specified in this standard are designed for use with hypodermic needles specified in the ISO 7 standard.

Empty, sterile, single-use hypodermic syringes are generally made of plastic materials and are designed for manual withdrawal (aspiration) and injection of fluids after being filled by the user.

The main focus areas of this standard are as follows:

• Design validation: Ensuring syringes are flawless, have accurate markings, and maintain sterility.
• Performance tests: Checking ease of use such as the force required to move the piston, leak prevention, and minimum dead space (fluid remaining after discharge).
• Materials: Syringes must be biocompatible, pharmacologically inert, and suitable for sterilization.

This applies primarily to syringes designed for immediate human use after filling, not for long-term storage of medications.

Manufacturers must adhere to a variety of critical tests to verify design and performance:

• Gradual capacity and accuracy: Tolerances in volume markings ensure precise dosing.
• Dead volume: Limiting residual volume to minimize waste (e.g., a maximum of 0,07 mL for syringes smaller than 5 mL), particularly important for vaccines.
• Leak tests: Under pressure, there should be no air or liquid leakage from the piston or nozzle.
• Piston operating forces: Measures the loosening (initial) force and shear (continuous) force to ensure smooth and effortless operation without excessive resistance.
• Conformity and seal integrity: The piston must move freely but provide a proper seal.
• Labeling and packaging: Clear, durable scale markings and sterility maintenance.

These tests help prevent problems such as incorrect dosing, contamination, or needle stick risks.

• The standard “EN ISO 7886-2 Part 2: Syringes for use with electric syringe pumps” describes the requirements for sterile, single-use hypodermic syringes with a nominal capacity of 1 ml or more, made of plastic materials and designed for use with power-operated syringe pumps.

This standard does not apply to syringes with automatic shut-off feature (ISO 7886-3 standard), syringes for use with insulin (ISO 8537 standard), disposable glass syringes, syringes pre-filled by the manufacturer for injection, and syringes supplied in kits for filling by the pharmacist. This standard does not address compatibility with injection fluids.

Empty, sterile, disposable hypodermic syringes, made of plastic and designed for use with power-operated syringe pumps, have a nominal capacity of 1 mL or more, with or without a needle.

The main focus areas of this standard are as follows:

• Size compatibility: Critical flange and housing dimensions to ensure a secure fit on various pump models.
• Power-based performance: Flow rate accuracy, resistance to pump forces, and compatibility (elastic deformation) tests.
• Sterility and biocompatibility: Materials must be suitable for sterilization and safe for patient contact.
• Leak prevention: There should be no air or liquid leakage during operation.

Unlike general-purpose syringes, these must function reliably when operated mechanically at precise speeds over extended periods.

This standard is based on the EN ISO 7886-1 standard but includes pump-specific tests:

• Pump compatibility: Specified dimensions for barrel flanges, piston, and overall length to prevent slipping or misalignment.
• Flow rate error: When tested with a pump at specific speeds, the given volume must remain within tight tolerances.
• Pump forces: Measures the forces the pump applies to the syringe without damaging it.
• Syringe compatibility: Limits elastic expansion under pressure to ensure accurate dosing.
• Dead volume and leakage: Similar to EN ISO 7886-1 standard, but tested under conditions simulating long-term pump operation.
• Labeling: Clear indications of capacity, rating, and compliance warnings, where required.

These enable precise drug delivery in critical care settings such as IV medications, anesthesia, or chemotherapy.

• The standard “EN ISO 7886-3 Part 3: Automatic shut-off syringes for fixed-dose vaccination” describes the characteristics and performance of sterile, single-use hypodermic syringes with automatic shut-off feature, designed to deliver a fixed dose of vaccine immediately after filling. Syringes can be made of plastic, rubber, or other materials and can be with or without a needle, or with a needle guard.

This standard does not specify the design of an automatic shut-off syringe feature. Furthermore, it does not apply to syringes for use with insulin (under ISO 8537), syringes for use with power-operated syringe pumps (under ISO 7886-2), reuse prevention syringes (under ISO 7886-4), or syringes designed for pre-filling (under ISO 11040 series of standards). This standard does not address compatibility with injection fluids/vaccines.

Sterile, disposable hypodermic syringes, made of plastic, rubber, or other materials, are typically designed for drawing vaccine from a vial and immediately injecting a fixed dose, often used in mass vaccination programs.

The key elements of this standard are:

• Automatic shutdown mechanism: After a fixed dose is delivered, the syringe automatically becomes unusable (e.g., the piston locks or breaks).
• Fixed-dose administration: Ensures precise administration of standard vaccine volumes (typically 0,5 mL or 0,1 mL for BCG).
• Performance tests: Leakage, strength, sterility, biocompatibility, and reliable activation of the deactivation feature.
• Labeling and packaging: Clear capacity indicators and sterility maintenance.
• The automatic deactivation feature is not mandatory in the design; it allows manufacturers to innovate as long as performance criteria are met.

The standard, built upon the EN ISO 7886-1 standard, includes specific tests for the automatic deactivation function:

• Deactivation reliability: The mechanism should remain continuously activated after complete dose expulsion and prevent refilling or re-injection.
• Consistent dose accuracy: Tight tolerances at the delivered volume.
• Piston forces: Smooth operation before failure, followed by irreversible lockup or breakage.
• No premature activation: Must allow full aspiration and injection without premature deactivation.
• Leakage and dead volume: Minimum residual volume to prevent vaccine waste.

These tests ensure safety in low-resource environments where manual reuse might otherwise occur.

• The standard “EN ISO 7886-4 Part 4: Syringes with reuse prevention feature” describes the requirements for single-use, sterile hypodermic syringes made of plastic and rubber materials, with or without needles. These syringes are designed for aspiration or immediate injection of fluids after filling, and are intended to be rendered unusable after use.

This standard does not apply to syringes made of glass (ISO 595 standard), automatic shut-off syringes for fixed-dose vaccination (ISO 7886-3 standard), and syringes designed for pre-filling. Furthermore, this standard does not address compatibility with injection fluids. Other standards may apply if the syringes are used for purposes other than those specified in this standard.

Syringes designed to reduce the risk of needle stick injuries may meet this standard in terms of reuse prevention features, but it is emphasized that needle stick prevention features of syringes are not addressed in this standard.

Made from plastic and rubber materials, sterile, single-use hypodermic syringes, with or without needles, are designed to aspirate fluids (e.g., from a vial) and then immediately inject them. A key innovation is a reuse prevention feature that renders the syringe unusable after a single use (e.g., by locking, breaking, or disabling the plunger or retraction mechanism).

The main focus areas of this standard are as follows:

• Reuse prevention mechanism: Reliable activation after use, without premature triggering.
• Performance and safety: Leak prevention, smooth piston operation, sterility, and biocompatibility.
• Materials and design: Similar to standard syringes, but with additional reuse prevention components.

The reuse prevention design is flexible; manufacturers can innovate as long as they pass the tests (e.g., piston lock or needle retraction).

For many years, our organization, with its competent and experienced staff, has been understanding the needs of its customers, providing the advanced testing services they require, and assisting in the establishment, implementation, and improvement of management systems. Within this framework, we also provide testing services to businesses in accordance with the "EN ISO 7886 Disposable sterile hypodermic syringes" standard.