ISO 7886-1 applies to:<\/p>\n
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Sterile syringes made of plastic materials.<\/p>\n<\/li>\n
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Syringes used with hypodermic needles for subcutaneous or intramuscular injection.<\/p>\n<\/li>\n
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Syringes intended for single use.<\/p>\n<\/li>\n<\/ul>\n
This standard does not apply<\/strong> to syringes for insulin (covered by ISO 8537), dental use (covered by ISO 7885), or syringes for infusion pumps.<\/p>\n
\nISO 7886 Testing and Its Significance<\/h2>\n
ISO 7886-1<\/strong> focuses on performance requirements and test methods for hypodermic syringes<\/em>, particularly those used with or without needles. These tests ensure:<\/p>\n
1. Design and Construction<\/strong><\/h3>\n
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Transparent barrel for visual inspection of contents.<\/p>\n<\/li>\n
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Graduated scale printed with permanent ink.<\/p>\n<\/li>\n
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Secure plunger fit to prevent leakage or dislodgement.<\/p>\n<\/li>\n<\/ul>\n
2. Volume Accuracy<\/strong><\/h3>\n
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The actual delivered volume must match the nominal volume marked on the barrel within specified tolerances.<\/p>\n<\/li>\n
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Accuracy is tested at 10%, 50%, and 100% of the nominal capacity.<\/p>\n<\/li>\n<\/ul>\n
3. Leakage Tests<\/strong><\/h3>\n
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Air leakage<\/strong> e liquid leakage<\/strong> are tested under defined pressure and volume conditions.<\/p>\n<\/li>\n
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No visible leakage should occur from the barrel or between components.<\/p>\n<\/li>\n<\/ul>\n
4. Dead Space<\/strong><\/h3>\n
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The volume remaining in the syringe after full depression of the plunger must not exceed the specified maximum (usually \u2264 0.07 mL).<\/p>\n<\/li>\n<\/ul>\n
5. Plunger Function<\/strong><\/h3>\n
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The plunger should move smoothly without sticking or slipping.<\/p>\n<\/li>\n
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There must be no leakage or separation under normal operating pressure.<\/p>\n<\/li>\n<\/ul>\n
6. Break Force and Separation Force<\/strong><\/h3>\n
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The maximum force required to break the plunger or separate the components should not fall below safety thresholds.<\/p>\n<\/li>\n<\/ul>\n
7. Biocompatibility<\/strong><\/h3>\n
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Materials in contact with the drug or injection site must pass ISO 10993 series biocompatibility tests.<\/p>\n<\/li>\n<\/ul>\n
Each test helps determine if a syringe is safe, reliable, and consistent in performance.<\/p>\n
\nHypodermic Syringe Test Methods in ISO 7886-1<\/h2>\n
1. Hypodermic Syringe Leak Test Under Vacuum (Annex B)
![\"ISO](\"https:\/\/www.qualitester.com\/wp-content\/uploads\/2025\/05\/ISO-7886-1-Annex-B.webp\")
<\/h3>\nLeakage past the plunger stopper under negative pressure must be tested to avoid contamination or air intrusion. This hypodermic syringe leak test<\/strong> is essential for verifying airtightness.<\/p>\n
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Method:<\/strong> Fill the syringe with water (at least 25% capacity), clamp the plunger, and apply -88 kPa vacuum.<\/p>\n<\/li>\n
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Observation:<\/strong> Inspect for any air leaks or detachment of the plunger stopper.<\/p>\n<\/li>\n<\/ul>\n
Attrezzatura consigliata:<\/strong>
Strumenti di cella SLT-02 Tester per siringhe<\/a><\/strong> offers precise vacuum control and automated readings, ensuring compliance with Annex B.<\/p>\n
\n2. Hypodermic Syringe Liquid Leak Test Under Compression (Annex D)<\/h3>\n
Il hypodermic syringe liquid leak test<\/strong> examines syringe integrity under axial and lateral mechanical stress.<\/p>\n
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Method:<\/strong> After sealing the nozzle, a side force is applied to deflect the plunger, followed by axial compression to simulate user operation.<\/p>\n<\/li>\n
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Observation:<\/strong> Monitor for fluid leakage at pressures of 200 kPa and 300 kPa.<\/p>\n<\/li>\n<\/ul>\n
Attrezzatura consigliata:<\/strong>
Use SPPT-01 Syringe Positive Pressure Tightness Tester<\/a><\/strong>\u00a0from Cell Instruments to apply controlled mechanical forces and monitor for any failure in seal integrity.<\/p>\n
\n3. Syringe Dead Space Test: Minimizing Medication Waste (Annex C)<\/h3>\n
Dead space refers to the volume of fluid that remains in the syringe after complete expulsion. High dead space can lead to drug wastage and inaccurate dosing.<\/p>\n
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Method:<\/strong> Weigh the empty syringe, then weigh it after being filled and emptied of water.<\/p>\n<\/li>\n
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Calcolo:<\/strong> The difference in weight indicates dead space<\/strong> in mL.<\/p>\n<\/li>\n<\/ul>\n
\n4. Glide Force Test for Syringe Piston (Annex E)
![\"ISO](\"https:\/\/www.qualitester.com\/wp-content\/uploads\/2025\/05\/ISO-7886-1-Annex-E.webp\")
<\/h3>\nSmooth piston movement is critical for user comfort and precise dosage control. The glide force test<\/strong> measures the force required to operate the piston consistently across the full stroke.<\/p>\n
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Method:<\/strong> A mechanical testing machine depresses the plunger at a fixed rate, recording real-time resistance.<\/p>\n<\/li>\n
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Purpose:<\/strong> Verifies the syringe usability and consistency across lots.<\/p>\n<\/li>\n<\/ul>\n
Attrezzatura consigliata:<\/strong>
Cell Instruments MST-01 Medical Syringe Tester<\/a><\/strong>\u00a0is ideal for glide force test<\/strong> applications. It records force profiles and complies with ISO 7886-1 accuracy requirements.<\/p>\n
\nWhy Choose Cell Instruments for ISO 7886 Testing?<\/h2>\n
Cell Instruments offers a complete suite of syringe testing solutions to help manufacturers meet and exceed ISO 7886-1<\/strong> requirements. Our equipment is designed for:<\/p>\n
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High precision and automation<\/p>\n<\/li>\n
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Compliance with international standards<\/p>\n<\/li>\n
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Easy operation and data recording<\/p>\n<\/li>\n
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Flexible customization to meet specific test setups<\/p>\n<\/li>\n<\/ul>\n
Whether you’re validating product design or managing batch release testing, SLT-01<\/strong>, SPPT-01<\/strong>, e MST-01<\/strong> deliver reliable and repeatable results tailored to the medical device industry’s needs.<\/p>\n
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