Overview
ISO 8536-1:2011 - "Infusion equipment for medical use - Part 1: Infusion glass bottles" specifies the dimensions, performance and requirements for single‑use infusion glass bottles to ensure functional interchangeability. The standard covers bottle models, nominal capacities, material classes, hydrolytic resistance testing, mechanical and thermal performance, annealing quality and marking/identification requirements for medical infusion packaging.
Key topics and requirements
- Scope: Applicable only to single‑use infusion bottles intended for medical infusion solutions; focused on ensuring interchangeability and patient safety.
- Models & dimensions: Defines three typical neck finishes/models (A, B, C) with standard nominal capacities commonly used - 50, 100, 125, 250, 500 and 1 000 ml - and corresponding dimensional requirements.
- Materials: Permits borosilicate glass (colourless or amber) and soda‑lime‑silica glass, with changes in glass composition or colouring to be notified to users in advance.
- Hydrolytic resistance: Internal surface hydrolytic resistance must be tested per ISO 4802‑1 or ISO 4802‑2 and classified as HC 1, HC 2 or HC 3 (mapped in marking as I, II, III).
- Pressure & thermal performance: Bottles must withstand an internal test pressure of 600 kPa (6 bar) (ISO 7458). Thermal shock resistance: ΔT = 42 °C for soda‑lime‑silica and ΔT = 60 °C for borosilicate (ISO 7459).
- Annealing quality: Residual stress limited so optical retardation does not exceed 40 nm per mm of glass thickness when viewed in a strain viewer.
- Marking & designation: Permanent markings as specified (manufacturer, model, hydrolytic class, capacity). Standard designation format example:
Infusion bottle ISO 8536‑1 – A – 500 – cl – HC 2
Applications and who uses this standard
ISO 8536-1 is essential for:
- Medical device and pharmaceutical packaging manufacturers designing and producing infusion glass bottles and compatible closures/caps.
- Quality assurance, testing laboratories and regulatory teams performing hydrolytic, pressure and thermal tests to demonstrate compliance.
- Procurement and supply chain professionals ensuring interchangeability and correct specification of single‑use infusion bottles.
- Hospitals and clinical engineering when evaluating primary packaging for infusion solutions.
Practical uses include product design validation, supplier qualification, batch testing, and regulatory submissions where standardised glass primary packaging is required.
Related standards
- Other parts of the ISO 8536 series (Parts 2–12) covering closures, aluminium caps, infusion sets, freeze‑drying closures, pressure infusion equipment and accessories.
- Normative references cited: ISO 4802‑1, ISO 4802‑2, ISO 719, ISO 720, ISO 7458, ISO 7459 (test methods for hydrolytic resistance, internal pressure and thermal shock).
Keywords: ISO 8536‑1, infusion glass bottles, infusion equipment, medical use, hydrolytic resistance, borosilicate glass, soda‑lime‑silica glass, internal pressure resistance, single‑use infusion bottles, standard dimensions.
