AeroFid° Aero Spray Can Automated Micro-Leak Detection System

Overview

The AeroFid° 200 Automated Micro-Leak Detection System is a helium-based, pressure-decay and tracer-gas mass spectrometry platform engineered for high-throughput, non-destructive integrity verification of pressurized aerosol spray cans. Designed and manufactured by J.U.M. GmbH (Germany), the system operates on the principle of quantitative helium leak detection—where sealed cans are pressurized with helium-enriched air or subjected to helium sniffing in vacuum or accumulation mode, and residual helium flux is measured via high-sensitivity quadrupole mass spectrometry. This methodology enables trace-level quantification of leakage rates down to ≤2 × 10⁻³ mbar·L·s⁻¹—fully compliant with UN/SCETDG/INF.93, EN 60079-29-1 (Explosive Atmospheres – Gas Detectors), and ADR 2007 Annex 2, Section 6.2.1.2, thereby serving as a certified, validated replacement for obsolete hot-water bath immersion testing. Unlike hydrostatic methods, AeroFid° eliminates operator exposure to thermal hazards, water contamination risks, and subjective bubble interpretation—delivering objective, repeatable, and auditable pass/fail outcomes under ambient temperature conditions.

Key Features

• Helium mass spectrometry–based detection with verified sensitivity to ≤2 × 10⁻³ mbar·L·s⁻¹ per ISO 20485 and ASTM E499–22
• Throughput up to 250 filled aerosol cans per minute; scalable to 500 cpm with dual-sensor configuration
• Zero-contact, free-rolling conveyor integration—no mechanical clamping, no multi-head chamber sealing, no sensor head fouling
• Compact footprint (≤1.2 m²) enabling inline deployment on existing filling lines without structural modification
• Full compliance with ADR 2007, EN 60079-29-1, and UN/SCETDG/INF.93 for classification of leak acceptance criteria in transportable pressurized containers
• Self-diagnostics, automated calibration verification, and real-time drift compensation ensure long-term measurement stability
• Operates at ambient laboratory temperature—no heating, no water handling, no post-test drying

Sample Compatibility & Compliance

The AeroFid° 200 accommodates standard aluminum, tinplate, and bi-layer steel aerosol cans ranging from 50 mL to 1,000 mL volume, including valve-equipped configurations (e.g., metered-dose, continuous-spray, trigger-actuated). It supports both filled-can final quality control and empty-can pre-fill integrity screening. All test protocols are documented per ISO/IEC 17025:2017 requirements for testing laboratories, and system validation reports include IQ/OQ/PQ documentation aligned with pharmaceutical and industrial aerosol GMP environments. Data output meets FDA 21 CFR Part 11 requirements for electronic records and signatures when integrated with optional audit-trail-enabled software modules.

Software & Data Management

The embedded control software provides intuitive touchscreen operation, configurable test sequences (single-point or multi-step pressure ramping), and real-time graphical display of decay curves and helium signal intensity. All test results—including timestamp, can ID (via optional barcode/RFID interface), measured leak rate, pass/fail status, and environmental parameters—are stored in encrypted SQLite databases. Export formats include CSV, PDF test certificates, and XML for LIMS integration. Optional firmware upgrade supports GLP-compliant audit trails, user role-based access control (admin/operator/auditor), and electronic signature workflows compliant with Annex 11 and EU GMP Chapter 4.

Applications

• Final release testing of pharmaceutical metered-dose inhalers (MDIs) per USP and Ph. Eur. 2.2.50
• Quality assurance for consumer aerosols (deodorants, paints, lubricants, insecticides) under ADR and CLP Regulation (EC) No 1272/2008
• Pre-filling validation of empty cans prior to propellant charging in high-speed filling lines
• Root-cause analysis of seal failure modes during packaging process optimization
• Regulatory submission support for UN certification and transport safety documentation (UN 1950, UN 1956)

FAQ

Does the AeroFid° 200 require helium gas supply? Why helium?

Yes—it requires ultra-high-purity helium (≥99.999%) as a tracer gas. Helium is inert, non-toxic, non-condensable, and exhibits the smallest atomic radius among stable gases—enabling detection of sub-micron leaks inaccessible to other tracer media.
Can it detect leaks in cans with internal valves or actuators?

Yes—the system accommodates valved configurations by applying controlled backpressure or using accumulation-mode detection, ensuring sensitivity is maintained across functional actuation states.
Is hot-water bath elimination validated per regulatory guidance?

Yes—J.U.M.’s official certification report (issued October 2008) confirms full equivalence to ADR 2007 Annex 2, Section 6.2.1.2, and has been accepted by multiple Notified Bodies for CE marking of aerosol production lines.
What maintenance intervals are recommended?

Mass spectrometer tuning every 6 months; helium leak check of manifold seals quarterly; full system performance verification annually—documented in accordance with ISO/IEC 17025 Clause 7.7.