ISO 8536-3:2009

Overview

ISO 8536-3:2009 is an international standard developed by the International Organization for Standardization (ISO) that specifies aluminium caps for infusion glass bottles used in medical applications. This standard sets precise requirements to ensure the safety, functionality, and compatibility of aluminium caps with infusion bottles compliant with ISO 8536-1. Aluminium caps are essential components in infusion equipment, securing the sterile contents of infusion bottles until administration.

The standard defines dimensions, tolerances, designations, mechanical properties, packaging, and marking requirements for aluminium caps. It provides manufacturers, healthcare providers, and quality assurance professionals with clear guidelines to maintain consistent quality and ensure patient safety in infusion therapy.

Key Topics

• Scope and Application
  ISO 8536-3 applies to aluminium caps that fit infusion glass bottles meeting ISO 8536-1 specifications. It covers one-piece, two-piece, and three-piece tear-off caps with different types including centre-hole caps, three-bridge tabs, and complete tear-off tabs.

• Dimensions and Tolerances
  The standard specifies precise dimensions such as thickness, nominal size (28 mm and 32 mm), height, tab width, and hole diameters. Tolerances are aligned with ISO 2768 parts 1 and 2 for linear, angular, and geometrical dimensions to guarantee component interchangeability.

• Design and Materials
  Aluminium caps are designed for robustness, ease of removal, and secure closure. The design includes mechanisms like tear-off tabs (three-bridge or complete) and protective discs to prevent contamination and tampering.

• Mechanical Requirements
  The force required to remove tear-off tabs and push caps into protective components is standardized to ensure user safety and convenience. For example, forces to remove tabs range from 5 N to 60 N depending on cap type and size, aligning with performance tests in ISO 8872.

• Packaging and Marking
  Caps must be packaged to preserve their integrity during transport and storage following ISO 8872 requirements. Marking on the aluminium caps includes designation codes expressing part number, type, and nominal size for traceability and quality control.

Applications

ISO 8536-3 aluminium caps are used extensively in:

• Medical Infusion Systems
  Securing sterile solutions in glass bottles during storage and transport, essential in hospital intravenous therapy and outpatient care.

• Pharmaceutical Packaging
  Providing a tamper-evident, sterile closure for drug infusion bottles, maintaining the safety and quality of parenteral medications.

• Manufacturing of Infusion Equipment
  Enabling medical device companies to produce infusion bottles with standardized closures, improving global compatibility and regulatory compliance.

• Quality Assurance and Regulatory Compliance
  Offering healthcare institutions and suppliers a benchmark to assess product conformity and ensure patient safety.

Related Standards

ISO 8536-3:2009 is part of the ISO 8536 series which covers infusion equipment comprehensively:

• ISO 8536-1: Infusion glass bottles
• ISO 8536-2: Closures for infusion bottles
• ISO 8536-4: Infusion sets for single use, gravity feed
• ISO 8536-5: Burette infusion sets for single use, gravity feed
• ISO 8536-6: Freeze drying closures
• ISO 8536-7: Aluminium-plastic combination caps for infusion bottles
• ISO 8872: Aluminium caps for transfusion, infusion, and injection bottles – General requirements and test methods

Additionally, ISO 2768 parts 1 and 2 apply for general tolerances related to dimensioning and geometrical features.

Keywords: ISO 8536-3, aluminium caps, infusion bottles, medical infusion equipment, infusion glass bottles, infusion closures, tear-off caps, medical packaging, ISO medical standards, infusion therapy safety.