Labthink C660M Internal Pressure Leakage and Seal Strength Tester

Overview

The Labthink C660M Internal Pressure Leakage and Seal Strength Tester is an engineered precision instrument designed for quantitative mechanical evaluation of package integrity under controlled internal pressurization. It operates on the principle of positive-pressure inflation—applying regulated compressed air to sealed packages or closures while monitoring pressure response, deformation kinetics, and failure thresholds in real time. This method enables deterministic assessment of seal quality, material resistance to hoop stress, and structural robustness across diverse flexible and semi-rigid packaging formats. Unlike empirical burst tests, the C660M supports time-dependent mechanical characterization—including creep behavior, creep-to-failure transitions, and pressure-hold stability—making it suitable for both R&D validation and routine QC in regulated environments. Its architecture conforms to the physical measurement framework defined in ISO 11607-2 for sterile barrier systems and ASTM F1140 for burst testing of flexible packaging, ensuring alignment with global regulatory expectations for package performance documentation.

Key Features

• Multi-mode pressure testing: configurable protocols include burst testing, creep testing, creep-to-burst, and pressure hold—each with programmable ramp rates, dwell times, and termination criteria.
• Dual expansion control: optional fixtures enable either constrained (inhibition) or unconstrained (non-inhibited) volumetric expansion during pressurization, critical for differentiating seal failure from bulk material yielding.
• Real-time airflow monitoring: proprietary mass-flow sensing technology delivers continuous, high-resolution gas delivery data—essential for maintaining test condition reproducibility at elevated pressures (>600 kPa).
• Industrial-grade touchscreen interface: 7-inch capacitive display with intuitive icon-driven navigation; supports firmware updates over Ethernet or USB; retains full operational state after power interruption.
• Comprehensive data governance: built-in storage for ≥1,200 test records; password-protected multi-level user access (operator, supervisor, administrator); automatic timestamping and audit trail generation compliant with FDA 21 CFR Part 11 requirements (when configured with GMP-compliant software module).
• Modular hardware expandability: standardized pneumatic interfaces (Φ8 mm PU tubing) and mounting provisions allow integration of application-specific fixtures—e.g., soft tube cradles, blister cavity adapters, aerosol valve mounts, and three-side-seal pouch holders.

Sample Compatibility & Compliance

The C660M accommodates a broad spectrum of primary packaging forms, including heat-sealed pouches (plastic, aluminum-laminated, paper-plastic composites), collapsible tubes (toothpaste, ointment, cosmetic), blister packs, aerosol containers, tamper-evident caps, and hot-fill beverage bottles. Its mechanical design supports flat, cylindrical, and contoured geometries up to 356 mm wide and 338 mm tall. All test methods are traceable to internationally recognized standards: ISO 11607-1/2 for medical device packaging validation; ASTM F1140/F2054 for burst and creep testing; GB/T 10440 and GB 18454 for food and pharmaceutical flexible packaging; and YBB pharmacopoeial standards for container-closure integrity verification. Optional DataShield™ integration enables direct linkage to LIMS or MES platforms, supporting GLP/GMP-aligned data archival and electronic signature workflows.

Software & Data Management

The embedded operating system provides native bilingual (English/Chinese) operation without language-switching latency. Test parameters, results, and real-time pressure/flow curves are stored locally with SHA-256 checksum integrity verification. USB and RS232 ports support export to CSV or XML for statistical analysis in external tools (e.g., Minitab, JMP). When paired with Labthink’s optional PC-based ControlSuite™ software, users gain advanced capabilities: automated report generation per ISO/IEC 17025 templates; SPC charting with Cp/Cpk calculation; comparative analysis across material lots or process conditions; and role-based digital signature enforcement for release-critical test records. All data handling adheres to ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available).

Applications

• Flexible packaging: quantification of seal strength, burst pressure, and creep deformation in laminated pouches used for medical devices, dairy, and pet food.
• Tube integrity: evaluation of crimped cap retention force, shoulder seal leakage, and body-wall resistance to internal hydrostatic load in aluminum and laminate tubes.
• Aerosol system validation: measurement of valve seat leakage rate and actuator stem sealing performance under sustained pressure (up to 1.6 MPa).
• Closure testing: assessment of torque-independent seal integrity for child-resistant and senior-friendly caps on HDPE, PET, and composite containers.
• Hot-fill container qualification: simulation of thermal expansion stresses during cooling phase to detect latent micro-leaks undetectable by vacuum decay.
• Regulatory submission support: generation of validated test reports meeting Annex 1 (EU GMP), USP , and ISO 11607 Annex A requirements for package integrity evidence packages.

FAQ

What pressure ranges does the C660M support?
Standard configuration covers 0–600 kPa (0–87 psi); extended range up to 1.6 MPa (232 psi) is available as a factory-configured option.
Is compressed air supply included with the instrument?
No—the C660M requires an externally supplied clean, dry, oil-free air source delivering 0.6–0.7 MPa (87–101 psi) via Φ8 mm polyurethane tubing.
Can the system validate sterile barrier integrity per ISO 11607?
Yes—when operated in burst or creep-to-failure mode with documented calibration and procedural controls, it satisfies Clause 6.3.2 of ISO 11607-2 for seal strength verification.
Does the instrument meet FDA 21 CFR Part 11 requirements?
Out-of-the-box functionality complies with Part 11 technical controls; full compliance (electronic signatures, audit trails) requires activation of the GMP software module and implementation of site-specific SOPs.
How is test data secured and backed up?
All records are stored with immutable timestamps and cryptographic hashing; backup is supported via USB export or network transfer to centralized servers using DataShield™.